Peer-reviewed Articles

406 downloads
4,244 views

Field work conducted by the staff of the Centro de Pesquisas Paleontológicas Llewellyn Ivor Price of the Universidade Federal do Triângulo Mineiro since 2009 at Campina Verde municipality (MG) have resulted in the discovery of a diverse vertebrate fauna from the...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.5594
102 downloads
1,633 views

The Upper Mississippian Bluefield Formation of the Mauch Chunk Group in southeastern West Virginia is known for its preservation of a variety of invertebrate taxa and early tetrapod trackways, but no lower actinopterygian remains have been formally described from...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.5533
373 downloads
1,218 views

Stagonolepis robertsoni, from the Late Triassic of Scotland, was the first named aetosaurian. Known mostly from a series of natural molds from two localities, the osteology of this taxon has been difficult to interpret. Detailed work on this material in the late...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.5455
98 downloads
530 views

Background Amphibians, due to their ecophysiological peculiarities, have a physiology dependent on environmental conditions and sensitively respond to their changes. Here, the oldest record of the genus Thaumastosaurus is described, whose fossil record known exclusively...

["Biodiversity","Biogeography","Paleontology","Zoology"]
doi:10.7717/peerj.5511
126 downloads
1,192 views

The discovery of a well-preserved cranial end of a plotopterid scapula from the Early Oligocene Jinnobaru Formation in southwestern Japan has provided a fine example of its bone structure and has enabled the reconstruction of the triosseal canal (canalis triosseus)...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.5391
886 downloads
5,938 views

Nodosauridae is a clade of armored dinosaurs with a rich fossil record and long history of study in North America. Nodosaurid fossils have been collected throughout the western United States and Canada. Here, we report three new nodosaurid specimens from the Upper...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.5435
370 downloads
1,144 views

The paleoneuroanatomy of pseudosuchian archosaurs is poorly known, based on direct examination of the internal morphology of braincases and a few artificial endocasts. Among aetosaurs, only one endocast has been described almost a century ago by Case (1921) corresponding...

["Biodiversity","Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.5456
1 citation
1,025 downloads
12,392 views

A recent interpretation of the fossil remains of the enigmatic, large predatory dinosaur Spinosaurus aegyptiacus Stromer 1915 proposed that it was specially adapted for a semi-aquatic mode of life—a first for any predatory dinosaur. To test some aspects of this...

["Paleontology","Zoology"]
doi:10.7717/peerj.5409
191 downloads
1,368 views

Background Tar seep deposits in South America historically are well-known for their rich record of fossil mammals, contrasting with only a few formal reports of reptile remains. Here we report a new snake fauna recovered from two tar pits from Venezuela. The fossil...

["Biogeography","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.5402
323 downloads
1,468 views

Crocodyliformes is a group with a broad fossil record, in which several morphological changes have been documented. Among known transformations the most iconic is perhaps the series of changes seen in the structural evolution of the choanae. The change in the position...

["Paleontology"]
doi:10.7717/peerj.5372
319 downloads
1,668 views

The Los Menucos locality in Patagonia, Argentina, bears a well-known ichnofauna mostly documented by small therapsid footprints. Within this ichnofauna, large pentadactyl footprints are also represented but to date were relatively underinvestigated. These footprints...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.5358
135 downloads
1,362 views

The Gondolin palaeokarstic system, located in the UNESCO Fossil Hominids of South Africa World Heritage Site, has been sporadically excavated since the 1970s. Sampling of ex situ dumpsites in 1997 recovered the only two fossil hominin specimens recovered thus far...

["Anthropology","Paleontology"]
doi:10.7717/peerj.5393
394 downloads
4,008 views

We describe a new iguanodontian ornithopod, Choyrodon barsboldi gen. et sp. nov. from the Albian-aged Khuren Dukh Formation of Mongolia based on several partial skeletons interpreted to represent a subadult growth stage based on osteohistological features. This...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology","Histology"]
doi:10.7717/peerj.5300
152 downloads
961 views

Background Amphibians are animals strongly dependent on environmental conditions, like temperature, water accessibility, and the trophic state of the reservoirs. Thus, they can be used in modern palaeoenvironmental analysis, reflecting ecological condition of the...

["Paleontology"]
doi:10.7717/peerj.5267
154 downloads
767 views

Hyperphalangy is a rare condition in extant aquatic turtles, and mainly limited to soft-shelled turtles. Here we report a new freshwater turtle, Jeholochelys lingyuanensis gen. et sp. nov. from the Early Cretaceous Jehol Biota of western Liaoning, China. This new...

["Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.5371

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