Ben Creisler
Recent marine reptile papers with free pdfs:
Free pdf:
Parahenodus atancensis de Miguel Chaves, Ortega & PÃrez-GarcÃa, 2018 is a recently described bizarre cyamodontoid placodont, based on a partial but well-preserved Spanish Upper Triassic skull. It was identified as the sister taxon of the German highly specialized Henodus chelyops Huene, 1936. The use of micro-computed tomography has been able to significantly increase knowledge of the cranial anatomy of Parahenodus atancensis by the characterization of several bones and structures previously unknown for this taxon, as well as to obtain a partial reconstruction of its brain endocast and associated endocranial structures, poorly known in most Triassic sauropterygians. In addition, we identify several synapomorphies of the braincase of Cyamodontoidea so far unknown in Henodontidae, improving knowledge about this clade. The study of the endocranium and neurosensory structures of Parahenodus atancensis suggests a relatively lower reliance on vision, the pineal system and the pituitary than in other Triassic sauropterygians.
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Free pdf:
Rogelio Antonio Reyna-HernÃndez, Luis EncarnaciÃn Silva-MartÃnez & HÃctor E. Rivera-Sylva (2021)
Nuevos registros de ictiosaurios (Reptilia: Ichthyosauria) del JurÃsico Superior en Nuevo LeÃn, MÃxico.
[New records of ichthyosaurs (Reptilia: Ichthyosauria) from the Upper Jurassic in Nuevo LeÃn, Mexico]
BoletÃn de la Sociedad GeolÃgica Mexicana 73 (1): A150220 Â(advance online publication) (in Spanish)
doi:
http://dx.doi.org/10.18268/BSGM2021v73n1a150220http://boletinsgm.igeolcu.unam.mx/bsgm/vols/epoca04/7301/A150220_Reyna-Hernandez.pdfThe paleontological diversity of Mesozoic marine reptiles in northeastern Mexico shows an extensive fossil record, composed of different orders, including Ichthyosauria, a group with reports in Jurassic formations of the region. This paper presents two specimens collected in Galeana, Nuevo LeÃn, comprised by postcranial elements, from the La Caja Formation, of the Upper Jurassic. The mentioned specimens increase the fossil record of the area and contribute to the greater understanding of the fauna and paleoecological diversity of the PaleoGulf of Mexico during the Upper Jurassic.