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Language Spanish journal of palaeontology. 2016. Vol. 31, no. 2
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- Fossil micromammals of the early Pliocene locality of Almenara MB: biostratigraphical and palaeoecological implications(2020) Mansino, Samuel; Crespo, Vicente D.; Lázaro, María; Ruiz Sánchez, Francisco Javier; Abella, Juan; Montoya Bello, PlinioIn this work, we have studied the fossil rodent, insectivore and chiropteran faunas, of a new locality from the AlmenaraCasablanca karstic complex, named ACB MB (Castellón, east Spain). We consider an early Ruscinian age for this site, close to the Miocene/Pliocene boundary, and infer warm and relatively humid conditions from the analysis of the micromammal assemblage. We remark the presence of two species of Eliomys in ACB MB, rare in localities of this age, and the lack of any gerbil remains, fossil markers of faunal interchanges between Africa and Europe in the context of the Messinian Salinity Crisis, recorded in the nearby late Miocene site of ACB M
- Pseudorhapydionininae of the Iberian Ranges (Cenomanian, Iberian Peninsula)(2020) Consorti, Lorenzo; Calonge, Amelia; Caus, EsmeraldaPseudorhapydionina laurinensis, P. dubia, P. anglonensis and Pseudorhipidionina casertana (Subfamily Pseudorhapydionininae) from the Iberian Range are restudied. The age of the deposits containing these species is late Cenomanian. However, a small Pseudorhapydionina (named in this work as P. aff. laurinensis) occurs in the lower Cenomanian deposits suggesting that the origin of the group is in the earliest Cenomanian
- Grallator theropod tracks from the Late Jurassic of Asturias (Spain): ichnotaxonomic implications(2020) Castanera, Diego; Piñuela, Laura; García-Ramos, José CThe MUJA (Museo del Jurásico de Asturias, Jurassic Museum of Asturias) has an interesting collection of theropod tracks that show similarities with the ichnogenera assigned to the Eubrontes-Grallator plexus. In this paper we describe in detail the morphology of 21 specimens recovered from different localities on “The Dinosaur Coast” of Asturias, plus four specimens preserved in outcrops in the sea cliffs of Les Vinaes (Villaviciosa). All the specimens are from the outcrops of the Lastres Formation, which is Kimmeridgian in age. The general morphology of the tracks, the footprint length-width ratio, the mesaxony, low divarication of the digits (II-IV) and the absence of hallux and metatarsophalangeal impressions suggest that the tracks are more similar to Grallator than to any other theropod ichnotaxa. Geometric morphometric analysis (principal component analysis, PCA) based on 2D landmark techniques suggests that they differ from Kalohipus bretunensis (as yet the only Grallator-like ichnotaxon described in the Iberian Peninsula) mainly in the divarication angles and in the projection of digit III
- Osteological identification criteria for Capra pyrenaica and Capra hircus validated with DNA(2020) Galindo-Pellicena, Mª Ángeles; Ureña, Irene; Valdiosera, Cristina; Arsuaga, Juan LuisThe taxonomic identification of Capra hircus and Capra pyrenaica from bone remains is essential in order to be able to infer a prehistoric society’s subsistence strategy. Although osteometry is the criterion that is typically used to distinguish both of these species, Sarrión (1988) also defined morphological characteristics for distinguishing them. The objective of this work is to validate these morphological criteria with the genetic identification of ovicaprine bone remains from Palaeolithic and Neolithic levels of the Chaves site (Sierra de Guara, Huesca). The preliminary results indicate that the astragalus and calcaneus are more adequate for identifying Capra pyrenaica and Capra hircus and the discrimination criteria of mandibles and metacarpals are called into question
- A multi-ootaxic assemblage from the Lower Cretaceous of the Cameros Basin (La Rioja; Northern Spain)(2020) Moreno-Azanza, Miguel; Gasca, José Manuel; Díaz-Martínez, Ignacio; Bauluz Lázaro, Blanca; Canudo Sanagustín, José Ignacio; Fernández, Arturo; Pérez-Lorente, FélixHere we describe the new fossil site of El Horcajo in the vicinity of Trevijano (La Rioja, Spain). It is located in the palustrine facies of the Enciso Group (Cameros Basin). This new locality has provided dozens of eggshell fragments, together with other vertebrate remains and charophyte fructifications, which allow dating of the locality as Valanginian-Hauterivian. Five ootaxa have being recognized: 1) the Spheroolithidae Guegoolithus turolensis; 2) a surprisingly thick Prismatoolithidae indet., with certain affinities to the oogenus Sankofa, that may represent a new oogenus and oospecies for this oofamily; 3) the Krokolithidae Krokolithes sp.; 4) recrystallized ?Testudoolithidae eggshells; and 5) ?Geckoolithidae eggshells of uncertain affinity. This oodiversity is similar to that of other eggshell microsites. The ootaxonomic list differs from the other Iberian locality of the same age, Pochancalo 1 (Villanueva de Huerva Formation, Zaragoza) in lacking sauropod and megalosauroid theropod eggshells, but shares the presence the ornithopod and coelurosaurian theropod eggshells with other younger microsites found in similar facies. The age of the new locality has immediate consequences for the tectono-sedimentary framework of the Cameros Basin, and the new data will need to be considered in future stratigraphical works. Furthermore, the reliability of eggshells as biostratigraphic markers is questioned, and the viability of Guegoolithus as a guide fossil for the lower Barremian is rejected
- Analysis of the Iberian Aragonian record of Paleotestudo, and refutation of the validity of the Spanish ‘Testudo catalaunica’ and the French ‘Paleotestudo canetotiana’(2020) Pérez-García, AdánInformation about the small Testudinidae taxon or taxa (i.e. with a length less than 30 cm) recorded in the Aragonian of the Iberian Peninsula was, until now, very limited. The references to ‘Paleotestudo catalaunica’ were regarded as possibly the only valid systematic identifications. That species corresponds to a tortoise defined in the Aragonian of Spain (Sant Quirze del Vallès, Barcelona). New material of tortoises, from several Spanish Aragonian regions, is analyzed here. The specimens from the type locality of ‘Paleotestudo catalaunica’ and from other Spanish sites, as well as those from two other European late Aragonian sites (Sansan in France and Hohenhöwen in Germany, where two taxa represented by several specimens were described) are reviewed here. This study refutes the validity of the taxa described in Sant Quirze del Vallès and in Sansan, being recognized as junior synonyms of the German Paleotestudo antiqua. This species is the only one recognized in the Aragonian of Spain
- A review of Oligocene and early Miocene European Cricetidae (Mammalia)(2020) Freudenthal, Matthijs; Martín-Suárez, ElviraThe aim of this paper is to analyze the contents of several genera of European Oligocene and early Miocene Cricetidae, their distinguishing characters, and their stratigraphic distribution. The genera discussed are Atavocricetodon, Eucricetodon, Pseudocricetodon, and Allocricetodon. Several groups are distinguished within the genus Eucricetodon and any of these may constitute a separate (sub)genus. Our results also suggest that Atavocricetodon and Eucricetodon should be retained as separated genera. We restrict our analysis to the European forms because we don’t know the Asiatic species
- Early Paleogene agglutinated foraminifera from the Middle East (Egypt and Arabia) and their distribution in the Tethys(2020) Anan, Haidar SalimThirty-two small benthic foraminiferal species belonging to sixteen genera are originally described from the Paleogene rocks (mainly Paleocene and Eocene) from three countries of the Middle East: Egypt, Jordan and United Arab Emirates (UAE). Some of these species are also recorded in other localities of the Tethys, i.e. United States of America (USA), France, Hungary, Tunisia, Qatar, Yemen and Pakistan. Some of these taxa extend into younger stratigraphic horizons than the Paleogene. The palaeontology, stratigraphy, palaeoenvironment and palaeogeography of these species in the Middle East and other Tethyan localities are presented
- Basal middle Miocene Listriodontinae (Suidae, Artiodactyla) from Madrid, Spain(2020) Pickford, Martín; Morales, JorgeExcavations in basal middle Miocene deposits in the Madrid Basin (Old Mahou Brewery, Los Nogales, La Hidroeléctrica, Guadarrama I, Barajas) have yielded interesting assemblages of fossils, among which the listriodont suid Listriodon retamaensis Pickford & Morales, 2003, is well represented. Much of the material is juvenile, and several of the permanent teeth are unworn, permitting detailed observations to be made of the fine structures of the crowns, which was not possible with the original hypodigm of the species from Retama due to the heavy wear on most of the teeth in that sample. Refinement of the definition of the species is thus possible. Los Nogales also yielded two teeth of the small tetraconodont suid Retroporcus complutensis
- Un nuevo dinosaurio estiracosterno (Ornithopoda: Ankylopollexia) del Cretácico Inferior de España(2020) Fuentes Vidarte, Carolina; Meijide Calvo, Manuel; Meijide Fuentes, Federico; Meijide Fuentes, ManuelEl yacimiento Zorralbo I, situado en el municipio de Golmayo (Soria, España) perteneciente al Cretácico Inferior (Hauteriviense superior/Barremiense inferior), ha proporcionado diverso material de cuatro tipos de dinosaurios: ornitópodos, anquilosaurios (Polacanthus sp.), saurópodos (Titanosauriforme) y terópodos (Allosauroidea y Dromaeosauridae). En este trabajo se analiza el material perteneciente a un nuevo dinosaurio iguanodóntido, que presenta una serie de caracteres morfológicos y biométricos que le separan de los iguanodóntidos ya conocidos: el proceso coronoide del dentario es continuación del mismo, con el último alvéolo dentario localizándose por delante de dicho proceso; la longitud de la escápula equivale a seis veces su anchura distal y a siete veces su anchura mínima; la tuberosidad interna y el cóndilo ulnar del húmero no están alineados y el cóndilo radial se sitúa por encima del ulnar; en la ulna, el extremo distal es más ancho que el proximal y tiene forma de maza; en el radio, el extremo distal también es mazudo; el carpo está formado por tres elementos; la anchura de la muñeca equivale al 70 % de la longitud de la mano; la fórmula falangeal es 1-3-3-2-(3-4); y, por último, el prepubis es recto y el foramen obturador es abierto y queda semi-cubierto por una lengüeta ósea mesial. La suma de todos estos caracteres y las diferencias existentes entre este ejemplar y los distintos géneros de iguanodóntidos, llevan a la conclusión de que se trata de un nuevo y se propone para el mismo la denominación de Magnamanus soriaensis nov. gen. nov. sp
