Zubía is an annual scientific journal, edited by the Instituto de Estudios Riojanos (IER), dedicated to the publication of works in Natural, Experimental, and Mathematical Sciences, with a special focus on research linked to the Riojan region. It publishes original articles, based on empirical data, that contribute to the knowledge of natural heritage, biodiversity, geology, paleontology, or other related areas of the territory. The print publication can be purchased at the bookstore of the Instituto de Estudios Riojanos (IER) and its website. The digital edition can be accessed through the OJS publications portal of the Instituto de Estudios Riojanos (IER) and through Dialnet.
Los autores que publican en Zubía conservan los derechos de autor de sus trabajos y autorizan a la revista la primera publicación de los mismos. Los artículos se publican bajo la licencia Creative Commons Atribución–No Comercial–Compartir Igual (CC BY-NC-SA), que permite su uso, distribución y reproducción en cualquier medio, siempre que se cite adecuadamente la autoría original, no se realice un uso comercial y se mantenga la misma licencia.
Digitalización del libro “La música en la Catedral de Santo Domingo de la Calzada
El archivo musical de la Catedral de Santo Domingo, by José López Calo, contains a catalogue of sacred musical compositions such as masses, carols, or psalms composed by different authors. This book did not have a digital version until now; so, its contents could only be accessed through one of the 500 printed copies. The aim of this work is to produce a digital and structured version of the book, in order to conduct text searches, or to consult the works of different authors and/or different musical genres through a web page, as well as to be able to reproduce the melody of these works. This article explains the process followed to reach such an objective. The final result can be found in the following link: https://domingo.unirioja.es/.
Copyright (c) 2026 Gonzalo Santamaría, Teresa Cascudo, César Domínguez, Jónathan Heras, Eloy Mata, Vico Pascual, María Villota (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Aportaciones al estudio de los gasterópodos (Mollusca: Gastropoda) de la Comunidad Autónoma de La Rioja (España)
This study provides an updated list with the 102 gastropod molluscs located in the Autonomous Community of La Rioja, including both terrestrial (93) and freshwater (9) types. This study also brings up to the date the distribution areas of 54 species along with the 9 new species found in the same area of study.
Copyright (c) 2026 Carlos Zaldívar Ezquerro (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Olmo ciliado, Ulmus laevis Pallas, en los Sotos del Ebro de Alfaro, La Rioja
First citation of Ulmus laevis Pallas in La Rioja Region. Two new locations are detailed in the riparian forest of “Sotos del Ebro de Alfaro” where three wild individuals were located.
Copyright (c) 2026 Victor Fernández Pasquier (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Los Hundidos y Barranco de la Nava 2. Dos nuevos yacimientos con huellas de dinosaurio en el término de Navajún (La Rioja, España)
Two new dinosaur footprint sites are located in La Rioja and their ichnological content is described. The theropod track morphotype s is determined from the analysis of their biomorphic and morphometric characters. Subsequently, the only complete trackway is studied and it is concluded that: i) there are several morphotypes in the same trackway and; ii) the trackway trajectory is not straight but sinusoidal. These two results are fetures present in many long bipedal trackways of theropod footprints. The ichnological study has been carried out with the same procedure as in the neighboring outcrops of the same stratigraphic unit (Inestrillas Formation) with the intention of providing the same type of complementary data. It is concluded that they are large theropod ichnites printed by large biped dinosaurs and calculations are made on the possible length of the trackmakers.
Copyright (c) 2026 Begoña Cisneros Gallart, Arturo Colina Aguirre, Arturo Fernández Ortega, Jesús Herrero Gascón, Juan Carlos Pereda Olasolo, Félix Pérez-Lorente, José Luis Sainz Ruiz de Zuazo, Raúl Sesma Jimeno (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
La Coronilla: un nuevo yacimiento de huellas de dinosaurio (Enciso, La Rioja, España)).
The site of La Coronilla is shown with its own characters, like any other paleoichnological sites in La Rioja. The characteristics of the site and the tracks it contains are particular due to the processes it has undergone during its rock formation stages (sedimentary and tectonometamorphic) and recent weathering and erosion. The data it offers is conditioned by the aforementioned processes, which helps us to show that each site studied is different. Therefore, we must consider that not all the published sites are the perfect ichnotaxonomic expression of the tracks they contain. In this work, the structures visible in this site (sedimentary, tectonometamorphic and ichnological) are described and the recognized ichnites are assigned to the corresponding ichnotypes.
Copyright (c) 2026 María José Ochoa Martínez, Félix Pérez-Lorente, Angélica Torices Hernández, Mireia Ferrer Ventura, José Manuel Valle Melón, Raúl San Juan Palacios, Ricardo Ochoa Martínez, Arturo Colina Aguirre, Arturo Fernández Ortega, Juan Carlos Pereda Olasolo (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Huellas saurópodas colosales en el Cretácico Inferior de la Cuenca de Cameros. Soto en Cameros (La Rioja)
In this paper we describe and analyse a couple of sauropod manus/pes footprints recently found at a site near the town of Soto de Cameros. The footprints cannot be classified at morphotype or ichnotype ichnotaxonomic level because: as in many sauropod tracks, they do not have preserved clear ichnotaxonomic features, and they are not accompanied by footprints of the same trackway. However, the conclusions obtained from its giant size, about 120 cm of pes length, and the stratigraphic situation, are of interest for determining the type and age of dinosaur fauna of La Rioja and for their contribution to global record of giant-sized sauropod footprints.
Copyright (c) 2026 Enrique Requeta Loza, Arturo Colina Aguirre, Arturo Fernández Ortega, Juan Carlos Pereda Olasolo, Félix Pérez-Lorente (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Impacto medioambiental del Centro de Investigación Biomédica de La Rioja (CIBIR):
The primary objective of CIBIR through Fundación Rioja Salud is to improve health of people from La Rioja. To this end, this organization carries out several care works along with translational research, teaching and innovation activities. In the last years, taking care of the environment has also been included in this catalogue of activities. To accomplish these tasks, a management system has been implemented. This system has produced significant improvements in the environmental behavior of the organization and its workers. The results obtained in the last years showed a sustained decrease in gas, electricity and water consumption, only broken by the effect of COVID-19 and its associated activities that were carried out in this building. An improvement in paper/plastic waste management has also been observed. In summary, the CIBIR provides to La Rioja society with a complementary, but basic, response to the needs related to the environment that could also lead to a significant improvement in the quality of life (health) of people living in our Community.
José Ignacio Maiso-Fernandez de Bobadilla
Copyright (c) 2026 Félix Rivera-Sanz, Patricia Pérez-Matute, Carmen Pinillos-García, Iván Yustes-Madrid, Jorge Rábanos-Martínez, José Ignacio Maiso-Fernandez de Bobadilla, Marcos Vilariño-Cameán, Susana Fernández García, Vanesa Díez-Mencía (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Fisura labiopalatina fetal: serie de casos
INTRODUCTION: Clef lip and palate are the most common craniofacial malformations in the world and the second most common congenital malformation. Its etiology is multifactorial and occurs as a consequience of an alteration in the fusion of the embryological processes that make up the nasal and oral cavity, between the sixth and the tenth week of gestation. OBJECTIVES: To analyze the cases of cleft lip and palate diagnosed in our center during the last 6 years, collecting the epidemiological and perinatal factors associated with them. METHODOLOGY: Observational, descriptive and retrospective study, in which the cases of cleft lip and palated diagnosed in our center during pregnancy were reviewed during the referred period. RESULTS: 5 cases were detected during the study period. All were diagnosed by conventional 2D ultrasound (US2D) before week 30, 60% on routine morphological ultrasound in the second trimester. 80% of the cases were cleft lip and palate, of which 75% were bilateral. There was only one case of claft lip. 60% of fetuses with cleft lip and/ or palate had other associated malformations, with two of the cases being polymalformed fetuses. CONCLUSIONS: Its early diagnosis is important, due to its functional implications in postnatal life, as well as its association with other genetic malformations and syndromes. The knowledge of the anatomy and lip and palatal function, as well as the epidemiological factors involved, allows to carry out an earlier and more accurate diagnosis.
Copyright (c) 2026 Marta Isabel Giménez Campos, Ana Cristina Ruiz Peña, Sara Arrieta Bretón, Lucía Vilas Saura, Cristina Fernández García, José Félix García Fernández (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Hemangioma cavernoso ovárico, un hallazgo incidental y poco frecuente
Ovarian hemangiomas are infrequent tumors with little bibliography about them. We present the case of a 52 years old woman with a pelvic mass discovered as an incidental finding after a routine examination. After performing imaging tests and tumor markers, we decided to complete the study at surgical level with the excision of the mass. In the postoperative histopathological examination, a tumor constituted by blood vessels and inmunohistochemically positive for CD31 and CD34 was observed, being labbeled of ovarian cavernous hemangioma.
Copyright (c) 2026 María Pilar Sáenz Pascual, María Muñoz Olarte (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Amniocentesis en gestantes con fetos con restricción del crecimiento intrauterino precoz:
OBJECTIVE- Intrauterine growth restriction is one of the main challenges of perinatal management. After the diagnosis of early intrauterine growth restriction, a protocol is established to identify causes; including per-forming an amniocentesis. The objective of this study is describe the clinical-epidemiological characteristics and the information obtained through amniocentesis in the study of fetuses with early intrauterine growth restriction. Analyze the perinatal result, weight-growth stature and psychomotor development during the lactating period. MATERIALS AND METHODS- This study is observational, descriptive and retrospective study. 580 amniocentesis performed between January 2015 and December 2019 were collected at the San Pedro Hospital (Logroño). A sample of 21 patients who had undergone this test was selected within the study protocol. RESULTS- 21 pregnancies (3.62% of total amniocentesis) were studied, with 18 live newborns. Genetic alterations were observed in 9.52% of the amniotic fluid samples. There was no case of intramniotic infection. 33.33% of the neonates presented morbidity. A weight and/or length <P3 was recorded at 62.50%. Slowed psychomotor development was described in 18.75% of infants. CONCLUSIONS- Age over 35 years and smoking habits were related to intrauterine growth restriction, but not low body mass index or preeclampsia, whose frequency was lower than expected. Perinatal mortality was higher than the mortality rate in the general population.
Copyright (c) 2026 Lucía Vilas Saura, Sara Arrieta Bretón, José Félix García Fernández, Marta Isabel Giménez Campos, Ana Cristina Ruiz Peña, Mariano Laguna Olmos, Edurne Álvarez Suberviola (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Observation of an Oral Fistula in the Eurasian Coot (Fulica Atra) in La Grajera dam, Logroño
This note reports an observation made at 5:00 p.m. on 28 May 2022 at the Grajera Reservoir of a Common Coot, Fulica atra, presenting an oral fistula (Photos 1 and 2). The bird was detected and observed in good body condition and did not display any behaviour suggesting that it was impaired in feeding.
Copyright (c) 2024 Juan José Molina, Álvaro Camiña (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Ignacio Pascual Castroviejo (Sorzano 1934-Madrid 2022). The founder of Spanish Child Neurology
We review the biography of the promoter and founder of the specialty that lies half way between Neurology and Pediatrics: Child Neurology, Pediatric Neurology or Neuropediatrics, Ignacio Pascual Castroviejo, born in Sorzano and member of a family of doctors from that town. We review his training, both undergraduate and postgraduate, his extensive and important clinical work, and above all his role in the training of numerous other specialists, both national and international. In addition, his contribution to the knowledge of child neurology, reflected in the description of several new diseases and in the characterization of many others. We review, succinctly, his prolific scientific production reflected in a multitude of conferences, participation in conferences, publications in scientific journals and books. We also reflect, succinctly, the numerous recognitions that his figure and his work have deserved both nationally and internationally.
Copyright (c) 2024 Juan José Ruiz Ezquerro, Vanessa Cisteré López (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Abdominal hernia as a complication after lumbar intersomatic fusion through lateral transpsoas approach. A case report
La fusión lumbar intersomática mediante abordaje lateral transpsoas (LLIF) es una técnica que permite realizar artrodesis lumbar de forma mínimamente invasiva. Es un abordaje en auge por su seguridad y baja tasa de complicaciones (<5%). Sin embargo, se han descrito casos de hernias incisionales en 1 de cada 100 pacientes sometidos a este a tipo de cirugía. Aunque la causa sigue siendo desconocida, algunos autores señalan a la fascia transversal como elemento principal en la estabilidad estructural del retroperitoneo, por lo que una reparación deficiente de la misma derivará en eventraciones de la pared abdominal. Presentamos el caso de una mujer de 62 años intervenida en nuestro centro por vía LLIF para artrodesis lumbar L2-S1. A los dos años de seguimiento postoperatorio debuta con una hernia incisional en la pared abdominal posterolateral izquierda que es tratada con éxito mediante eventroplastia laparoscópica.
Copyright (c) 2024 Paloma Sevilla Ortega, Paula Isla Sarasa, Amaia Aguirre Etxebarría, Manuel Malillos Torán, Borja Antón Capitán, Natalia Ibáñez Aparicio (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Abnormal placental appearance, thick placenta with radial appearance as a sonographic marker for adverse perinatal outcome. A report of 3 cases
Introduction and objectives: We suggest the inclusion of thickened placental ultrasound appearance in the management of patients with earlyonset intrauterine growth restriction due to placental cause. Methods: Presentation of clinical cases and bibliographic argumentation. Results: We present three cases of early-onset intrauterine growth restriction due to placental cause, with abnormal ultrasound placental appearance (thick-looking placenta, with radial distribution echoes or “glassy aspect”), associated with placental abruption and / or third trimester metrorrhagia. In one of the cases, the placental detachment happened at home, resulting in perinatal loss. In the other two cases the patients were hospitalized at the time of the placental abruption, as a resulto two viable newborns were delivered. Conclusions: In cases where this placental ultrasound pattern is appreciated, we propose a closer monitoring or hospital admission, given the higher probability of an adverse perinatal outcome that cannot be avoided or prevented, such as the placental abruption.
Copyright (c) 2024 Maite Cortés Antolín, Mariano Laguna Olmos, José Félix García Fernández, Sara Arrieta Bretón, Ana Cristina Ruiz Peña, andrea Gutiérrez Landaluce (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Mapping of wastes and by-products from the food industry and its role in gas sector
The agri-food sector is permanently evolving and nowadays is facing important challenges derived from sustainability policies and market requirements. Hence, the proper management of residues and effluents has become a key factor not only due to the laws in force, but also because of view of operation efficiency and market requirements, as well. Thus, this paper assesses the potential use of the organic waste generated by agroindustry, in La Rioja, as a source of biofuel generation. For such purpose, primary data have been directly collected from factories and the stream wastes have been sampled and characterized. Despite this study must be further developed, until now, collected data leads to theoretically estimate that the region might produce up to 200 GWh per year. This value poses an important contribution to the region’s energy independence, the improvement of the environmental footprint and the generation of added value for companies and rural localities.
Copyright (c) 2024 Pedro Muñoz, Carlos González-Menorca, Rebeca Sánchez-Vázquez, Nuria Candela (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
New observations (dinosaur footprints and swimming traces) at la Cela site (Muro en Cameros, La Rioja, Spain)
The Cameros Basin (Northern Spain) is one of the most prolific places in the world to study dinosaur footprints. During the last decade, works have continued to be published, with new findings and diferent phD investigations carried out, which has meant an in-depth review of the territory. This paper shows the new findings resulting from the review of the site known as La Cela, located in the town of Muro en Cameros. In this place, new traces of different ichnotypes and swimming marks have been documented in outcrops belonging to the Oncala group, being the first swimming marks found at this lithostratigraphic level.
Copyright (c) 2024 Félix Pérez-Lorente, Esperanza García-Ortiz (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
The decay of the native freshwater fish of the Ebro River (Spain): notes for its contemporary history
A bibliographic review has been carried out to quantify the distribution changes suffered by the native freshwater fish of the Ebro River. As an impact of the alterations produced by human activity, the distribution ranges of the native fish species of the Ebro River have been reduced by 62%, 5 species (18.52%) have become extinct, another 18 (66.67%) have reduced their distribution areas and only 4 (14.81%) preserve them in their entire length. There are thirteen threat factors that would explain this decline; the most cited in the literature are: water pollution, the construction of dams and reservoirs, the introduction of exotic species and dredging and canalizations. This indicates that the initiatives carried out by the administrations to protect the native fish of the Ebro River have not been effective. It is suggested that this loss of biodiversity be addressed from a broader ecosystem approach, which focuses on the restoration of habitats and natural flow regimes, from a management that coordinates all administrations and entities that manage the basin in that direction.
Copyright (c) 2024 Carlos Zaldívar Ezquerro, Ricardo Zaldívar López (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
José Antonio Arizaleta Urarte, in memoriam
El pasado mes de febrero del presente año falleció José Antonio Arizaleta Urarte, investigador agregado del IER desde el año 1985 y miembro del consejo científico de la revista de ciencias naturales Zubía desde 1998. Su trayectoria científica estuvo ligada principalmente al campo de la botánica y al ecosistema natural riojano. De ello son testigo los numerosos artículos que publicó en las páginas de la revista Zubía y su colaboración en obras colectivas y otros libros de nuestra Comunidad Autónoma. Desde estas líneas nos gustaría recordarle con cariño y subrayar sus aportaciones fruto de un gran esfuerzo investigador. La ciencia se hace gracias al trabajo de personas como José Antonio.
Copyright (c) 2024 Patricia Pérez Matute (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Juan Antonio Alejandre Sáenz (2023). Estudio comparativo de las dos versiones del Itinerario Botanico (1812-1813)
Es reseña del libro: Estudio comparativo de las dos versiones del Itinerario Botánico (1812-1813) ISBN: 978-84-126656-8-0
Copyright (c) 2026 Zubía https://creativecommons.org/licenses/by-nc-sa/4.0
How did the origin of herbivory in tetrapods expand the food webs?
Herbivory is key in trophic webs, but it took a while for it to appear in tetrapods. Comparing the dental geometry of the taxa from Linton, USA, fossil site in which the first amniote capable of consuming plants appeared, we show that vegetables could have been more involved in their diets than what was previously thought. Our results indicate that insectivory is the preceding step to omnivory, based on the similar dentitions and sizes of the taxa with these diets, in addition to the availability of insects and plants. They also show the stability of this ecosystem and the fact that omnivory allowed the appearance of bigger predators, as well as suggesting an important role for the competition between different taxa. This study indicates that the ecosystem of Linton was more similar to the modern ones than it was previously thought.
Copyright (c) 2024 Natanel Jiménez Corredor, Suresh S. Singh, Michael J. Benton (Autor/a) https://creativecommons.org/licenses/by-nc-sa/4.0
Portals to the Pleistocene: the Arroyo del Vizcaíno (Sauce, Uruguay) and the megafauna 3D project
El yacimiento del Arroyo del Vizcaíno en el sur de Uruguay presenta miles de restos fósiles de la megafauna sudamericana extinguida hace unos diez mil años. Algunos de esos huesos muestran marcas que han sido asignadas a la acción de herramientas, una evidencia indirecta de presencia humana a la inesperadamente alta edad de más de 30.000 años, duplicando lo que se aceptaba como la presencia humana más antigua del continente americano. Esta importancia y su propia riqueza fosilífera y taxonómica (con 16 especies diferentes), con un excepcional estado de conservación, y la base de estudios isotópicos y paleomoleculares realizados, nos han permitido emprender una amplia tarea de divulgación científica con visitas organizadas, plataforma web y un libro de divulgación “Megafauna 3D: Un libro de huesos”, entre otras actividades que aquí se detallan.
Copyright (c) 2024 Zubía https://creativecommons.org/licenses/by-nc-sa/4.0
Microvertebrate sampling: evaluation of the effect of adjuvants for the disaggregation of strata
Los métodos para el muestreo de estratos con la finalidad del estudio de restos de microvertebrados se han desarrollado durante la segunda mitad del siglo XX. En este trabajo proponemos un nuevo método de evaluación del efecto de distintos tratamientos y del uso de coadyuvantes químicos en la disgregación de estratos. El método se ha aplicado a niveles con presencia o posible presencia de micromamíferos pertenecientes a la cuenca Pliocuaternaria de Villarroya. Las conclusiones indican que los estratos presentan comportamientos muy variados y que resulta eficiente la evaluación previa del comportamiento del material a disgregar.
The application of geographic information systems (GIS) in the development of a suitability index for prospecting tetrapod fossils in the municipality of Lourinhã
Paleontological prospection campaigns are traditionally planned around previous knowledge of sites that have provided fossils and the interpretation of the regional geology. The application of a suitability index developed for the study of other rock formations (e.g. Two Medicine Formation, in Canada and USA) in the Upper Jurassic deposits of the Lourinhã municipality (Portugal), we determined areas with a higher likelihood of providing tetrapod fossils. The index was built using geospatial data, and through the usage of a weighted sum it was possible to determine the values of the suitability index, and then project them unto a map of the municipality of Lourinhã. The total area of the municipality was divided according to different suitability indexes: lower (overall area of 29,55 km2 ), medium (overall area of 78,56 km2 ) and higher (overall area of 39 km2 ). The application of these methods allows considering distinct factors beyond the geology that can speed up the decision-making process for prospecting and land management.
Herbivory is key in trophic webs, but it took a while for it to appear in tetrapods. Comparing the dental geometry of the taxa from Linton, USA, fossil site in which the first amniote capable of consuming plants appeared, we show that vegetables could have been more involved in their diets than what was previously thought. Our results indicate that insectivory is the preceding step to omnivory, based on the similar dentitions and sizes of the taxa with these diets, in addition to the availability of insects and plants. They also show the stability of this ecosystem and the fact that omnivory allowed the appearance of bigger predators, as well as suggesting an important role for the competition between different taxa. This study indicates that the ecosystem of Linton was more similar to the modern ones than it was previously thought
Bioerosion study of the boulders of the Martinhal beach (SW Portugal). Palaeoenvironmental applications
El estudio de un paleolitoral rocoso holoceno en el extremo SO de Portugal (Praia do Martinhal) formado por clastos dolomíticos del Jurásico (Kimeridgiense), permitió la identificación de las estructuras bioerosivas presentes, representadas por cinco icnogéneros y once icnoespecies. Los organismos productores de estas estructuras pertenecen a grupos muy diferentes entre los que se encuentran las esponjas clionaideas (productoras del icnogénero Entobia), anélidos poliquetos (productores de Caulostrepsis y Maeandropolydora), bivalvos litófagos (Gastrochaenolites), y bivalvos anomiídeos (Centrichnus). La icnoasociación presente corresponde a la icnofacies de Entobia. La recurrencia de los icnogéneros Entobia y Gastrochaenolites en la asociación definida, indican un paleoambiente marino de poca profundidad, alta energía y baja o nula tasa de sedimentación.
Characterisation and provenance of flint from the middle Palaeolithic site of los Aljezares (Aspe, Alicante)
El yacimiento del Paleolítico medio de Los Aljezares se localiza en Aspe (Alicante), en depósitos sedimentarios del Pleistoceno Superior inicial. Estos depósitos presentan abundantes conglomerados con cantos de sílex, muchos trabajados por los homininos. Este yacimiento se interpreta como una zona de ocupación corta donde se llevaron a cabo diferentes actividades como la manufactura lítica y el procesado de presas como caballos y ciervos. En este trabajo se han analizado los sílex del yacimiento y de las unidades miocenas cercanas, Calizas del Tabayal y Conglomerados del Tabayal. Se han identificado y caracterizado 6 tipologías en la unidad miocena Conglomerados del Tabayal y en el Pleistoceno, lo que indica que esta unidad habría sido la fuente de aprovisionamiento de las materias primas utilizadas por los grupos humanos paleolíticos. Por otro lado, las diferentes proporciones relativas en tipologías de sílex con señales antrópicas sugieren un uso selectivo por parte de estos homininos.
Anthropometric study of the scaphoid found in the Ruidera-Los Villares site
Tras la campaña de excavación de 2023 en el yacimiento de RuideraLos Villares se ha encontrado un hueso escafoides (RV’23-338) con ciertas características humanas. Mediante un estudio comparativo basado en medidas clásicas, se comparará el hueso hallado en dicho yacimiento con diferentes escafoides del registro fósil humano a fin de testar si existe una similitud entre el posible humano de Ruidera-Los Villares y otros homininos. Finalmente, los resultados nos informan de ciertas características arcaicas presentes en RV’23-338.
Sedimentological and palaeoenvironmental study of the palaeotheriidae site of Viana de Jadraque (middle Eocene, Guadalajara)
Estudio sedimentológico y paleoambiental de unos niveles carbonáticos de 36 m de potencia el cual incluye cinco tramos, todos descritos, donde aparecen restos de paleotéridos del Eoceno Medio en Viana de Jadraque, Guadalajara. Se han estudiado un conjunto de arenas, carbonatos y conglomerados, interpretados como de un ambiente palustre-lacustre con influencias fluviales, y una serie de restos óseos asociado a facies de canal.
Study of the human phalanx recovered from the Cave of los Toriles (Carrizosa, Ciudad Real, Spain)
Durante la campaña de 2021 en la Cueva de los Toriles (Ciudad, Real, España) se recuperó una falange proximal izquierda humana. Se procedió a realizar la radiodatación y determinar su composición de isótopos estables del carbono y del nitrógeno. La muestra se ha datado en el 2260-1980 calBC, situándose cronológicamente en el Calcolítico. Se ha comparado la proporción isotópica del carbono y del nitrógeno con los valores medios de otros yacimientos de cronología similar junto con un conjunto de restos faunísticos. Los valores de C13 son homogéneos a los presentados por los individuos de otros yacimientos. Por otro lado, el enriquecimiento de nitrógeno es homogéneo respecto a los yacimientos de La Mancha y del Argar, pero es más elevada que los presentados en el resto de los yacimientos. Esto puede interpretarse como un mayor acceso a los recursos animales
Reconstruction of the landscape evolution of the pliocene and quaternary basin of Villarroya (La Rioja)
La reconstrucción de paleopaisajes y la creación de secuencias de su evolución es una herramienta de interés a la hora de transmitir y divulgar al público general los cambios que ha sufrido la superficie de la Tierra a lo largo de su evolución geológica, biológica y climática. Mientras que es frecuente la reconstrucción de paleoecosistemas con marcos (ventanas) de visión de alcance menor a 1 km es muy poco frecuente el trabajo con paleopaisajes en los que el marco de visión supera 1 km de alcance. En este trabajo mostramos la evolución temporal del paleopaisaje de la cuenca pliocénica y cuaternaria de Villarroya (La Rioja) en marcos de visión de hasta 10 km.