Peer-reviewed Articles

The horned Ceratopsidae represent one of the last radiations of dinosaurs, and despite a decade of intense work greatly adding to our understanding of this diversification, their early evolution is still poorly known. Here, two postorbital horncores from the upper...

["Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.4265
433 downloads
3,786 views

Massospondylus carinatus is a basal sauropodomorph dinosaur from the early Jurassic Elliot Formation of South Africa. It is one of the best-represented fossil dinosaur taxa, known from hundreds of specimens including at least 13 complete or nearly complete skulls....

["Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.4224
553 downloads
7,062 views

A new small-bodied ornithopod dinosaur, Diluvicursor pickeringi, gen. et sp. nov., is named from the lower Albian of the Eumeralla Formation in southeastern Australia and helps shed new light on the anatomy and diversity of Gondwanan ornithopods. Comprising an...

["Biogeography","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.4113
85 downloads
767 views

Vertebrate tracks are subject to a wide distribution of morphological types. A single trackmaker may be associated with a range of tracks reflecting individual pedal anatomy and behavioural kinematics mediated through substrate properties which may vary both in...

["Anthropology","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.4247
138 downloads
1,684 views

Owing to their great diversity and abundance, ammonites and belemnites represented key elements in Mesozoic food webs. Because of their extreme ontogenetic size increase by up to three orders of magnitude, their position in the food webs likely changed during ontogeny....

["Developmental Biology","Evolutionary Studies","Marine Biology","Paleontology","Zoology"]
doi:10.7717/peerj.4219
190 downloads
2,515 views

Decades of collecting from exposures of the Upper Cretaceous Tombigbee Sand Member of the Eutaw Formation and Mooreville Chalk in Alabama, USA has produced large numbers of isolated Cretalamna (sensu stricto) teeth. Many of these teeth had formerly been assigned...

["Biodiversity","Paleontology","Taxonomy"]
doi:10.7717/peerj.4229
66 downloads
693 views

The studies of insects from archaeological contexts can provide an important supplement of information to reconstruct past events, climate and environments. Furthermore, the list of the species present in an area in the past allows the reconstruction of the entomofauna...

["Entomology","Paleontology"]
doi:10.7717/peerj.4176
198 downloads
1,195 views

Balaenidae (right and bowhead whales) are a key group in understanding baleen whale evolution, because they are the oldest surviving lineage of crown Mysticeti, with a fossil record that dates back ∼20 million years. However, this record is mostly Pliocene and...

["Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.4148
196 downloads
1,659 views

Background Helopanoplia distincta is an extinct soft-shelled turtle (Pan-Trionychidae) for which the type specimen is a fragmentary costal and the inguinal notch portion of the left hypoplastron from the Late Cretaceous (Maastrichtian) Lance Formation of Wyoming,...

["Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.4169
248 downloads
2,044 views

Previous investigations document functional and phylogenetic signals in the histology of dinosaur teeth. In particular, incremental lines in dentin have been used to determine tooth growth and replacement rates in several dinosaurian clades. However, to date, few...

["Paleontology","Anatomy and Physiology","Dentistry","Histology"]
doi:10.7717/peerj.4129
147 downloads
1,349 views

The present study entails descriptions of several well-preserved skulls from the pampathere species Holmesina floridanus, recovered from Pliocene localities in central Florida and housed in the collections of the Florida Museum of Natural History. Bone by bone...

["Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.4022
167 downloads
894 views

The Permian from China has a well-known terrestrial record where approximately 30 tetrapod taxa, including several therapsids, have been described. However, the record of therocephalians in China has remained elusive. Shiguaignathus wangi gen. et sp. nov., discovered...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.4150
285 downloads
3,038 views

Our knowledge about the body morphology of many extinct early vertebrates is very limited, especially in regard to their post-thoracic region. The prompt disarticulation of the dermo-skeletal elements due to taphonomic processes and the lack of a well-ossified...

["Ecology","Paleontology","Zoology"]
doi:10.7717/peerj.4081
124 downloads
1,236 views

The dodo (Raphus cucullatus) might be the most enigmatic bird of all times. It is, therefore, highly remarkable that no consensus has yet been reached on its body mass; previous scientific estimates of its mass vary by more than 100%. Until now, the vast amount...

["Mathematical Biology","Paleontology"]
doi:10.7717/peerj.4110
226 downloads
1,144 views

The Wukongopteridae compose a non-pterodactyloid clade of pterosaurs that are the most abundant flying reptiles in the deposits of the Middle-Late Jurassic Yanliao Biota. Until now, five species of three genera and two additional unnamed specimens have been described....

["Paleontology"]
doi:10.7717/peerj.4102

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