The phylogenetic position of Afromimus tenerensis Sereno, 2017 and its paleobiogeographical implications

التفاصيل البيبلوغرافية
العنوان: The phylogenetic position of Afromimus tenerensis Sereno, 2017 and its paleobiogeographical implications
المؤلفون: Federico L. Agnolin, Fernando E. Novas, Federico Brissón Egli, Mauricio A. Cerroni
المصدر: Journal of African Earth Sciences. 159:103572
بيانات النشر: Elsevier BV, 2019.
سنة النشر: 2019
مصطلحات موضوعية: Noasauridae, 010504 meteorology & atmospheric sciences, 010502 geochemistry & geophysics, 01 natural sciences, Paleontología, Ciencias de la Tierra y relacionadas con el Medio Ambiente, LOWER CRETACEOUS, GONDWANA, Tibia, Process (anatomy), 0105 earth and related environmental sciences, Earth-Surface Processes, ORNITHOMIMOSAURIA, biology, Ornithomimosauria, Geology, Anatomy, Phalanx, musculoskeletal system, biology.organism_classification, Cretaceous, Gondwana, Taxon, ABELISAUROIDEA, CIENCIAS NATURALES Y EXACTAS
الوصف: Afromimus tenerensis Sereno (2017) was recently described on the basis of an incomplete skeleton coming from the Lower Cretaceous of Niger. The specimen was originally identified as a basal ornithomimosaur. This clade of dinosaurs was abundant in North America, Europe, and Asia, but virtually unknown in Gondwana and thus its presence has deep palaebiogeographical implications. However, a critical review of the homologies proposed in the original description indicates instead that it may belong to Abelisauroidea. It shares with the latter clade: tibia with fibular crest continuous with the proximal end, large elliptical scar on posterior tibia, relatively low ascending process of the astragalus which is subrectangular in contour and is fused to fibula, a large iliofibular tubercle of fibula, pedal phalanx lacking flexor tubercle, having a lateral bump, and “V" shaped lateral furrows, distal caudal vertebrae with excavated fossae for prezygapophyses, and chevrons anteroposteriorly narrow with fused pedicels. Phylogenetic analysis here performed resulted in the inclusion of Afromimus within Abelisauroidea, being probably related to the Noasauridae. Afromimus shows several unique features sustaining that it is a valid taxon. The present contribution indicates that there is no incontrovertible evidence of ornithomimosaurs in Gondwana. Fil: Cerroni, Mauricio Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Agnolin, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Fundación de Historia Natural Félix de Azara; Argentina. Universidad Maimónides; Argentina Fil: Brissón Egli, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Novas, Fernando Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
وصف الملف: application/pdf
تدمد: 1464-343X
DOI: 10.1016/j.jafrearsci.2019.103572
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e50e7f402b29677cd9c4d98b2d513fd8
https://doi.org/10.1016/j.jafrearsci.2019.103572
Rights: RESTRICTED
رقم الانضمام: edsair.doi.dedup.....e50e7f402b29677cd9c4d98b2d513fd8
قاعدة البيانات: OpenAIRE
الوصف
تدمد:1464343X
DOI:10.1016/j.jafrearsci.2019.103572