Peer-reviewed Articles

Total of 128 results
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paleontology
204 downloads
1,023 views

The postcranial anatomy of Crocodyliformes has historically been neglected, as most descriptions are based solely on skulls. Yet, the significance of the postcranium in crocodyliforms evolution is reflected in the great lifestyle diversity exhibited by the group,...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.2075
1 citation
187 downloads
1,560 views

We report the first record of a snake from the Cretaceous of northern South America. The remains come from the La Luna Formation (La Aguada Member, Cenomanian of Venezuela) and consist of several vertebrae, which belong to the precloacal region of the vertebral...

["Paleontology"]
doi:10.7717/peerj.2027
84 downloads
412 views

The hypotheses about the origin of the primitive amniotic tarsus are very speculative. Early studies argued that the origin of the astragalus, one of the largest proximal bones in the tarsus of basal amniotes, was produced by either the fusion of two, three, or...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.2036
146 downloads
2,803 views

Haasgat is a primate-rich fossil locality in the northeastern part of the Fossil Hominid Sites of South Africa UNESCO World Heritage Site. Here we report the first hominin identified from Haasgat, a partial maxillary molar (HGT 500), that was recovered from an...

["Anthropology","Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.2024
198 downloads
905 views

Despite the increasing rate of systematic research on scarabaeine dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae), their fossil record has remained largely unrevised. In this paper, we review all 33 named scarabaeine fossils and describe two new species from...

["Entomology","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.1988
197 downloads
916 views

Pliosauridae is a globally distributed clade of aquatic predatory amniotes whose fossil record spans from the Lower Jurassic to the Upper Cretaceous. However, the knowledge of pliosaurid interrelationships remains limited. In part, this is a consequence of a few...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.1998
747 downloads
3,067 views

The early evolution of archosauromorphs during the Permo-Triassic constitutes an excellent empirical case study to shed light on evolutionary radiations in deep time and the timing and processes of recovery of terrestrial faunas after a mass extinction. However,...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.1778
64 downloads
465 views

Pleurocystitid rhombiferans are among the most unusual echinoderms whose mode of life has been long debated. These echinoderms are usually interpreted as vagile epibenthic echinoderms, moving over the sea bottom by means of a flexible stem. Although their life...

["Ecology","Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.1820
125 downloads
655 views

The Drimolen Palaeocave System Main Quarry deposits (DMQ) are some of the most prolific hominin and primate-bearing deposits in the Fossil Hominids of South Africa UNESCO World Heritage Site. Discovered in the 1990s, excavations into the DMQ have yielded a demographically...

["Anthropology","Paleontology"]
doi:10.7717/peerj.1941
347 downloads
1,366 views

The cranial and postcranial anatomy of the basal hadrosaurid dinosaur Eotrachodon orientalis, from the uppermost Santonian of southern Appalachia (southeastern U.S.A.), is described in detail. This animal is the only known pre-Campanian non-lambeosaurine hadrosaurid,...

["Paleontology","Taxonomy","Zoology","Histology"]
doi:10.7717/peerj.1872
190 downloads
721 views

A second species of Yuanansuchus, Y. maopingchangensis, is erected for new temnospondyl material from the Maopingchang site, Yuanan County, Hubei Province, China. These specimens are from the same horizon that produced Y. laticeps, the type species. Y. maopingchangensis...

["Paleontology"]
doi:10.7717/peerj.1903
270 downloads
1,196 views

Definitive therizinosaurid cranial materials are exceptionally rare, represented solely by an isolated braincase and tooth in the North American taxon Nothronychus mckinleyi, the remarkably complete skull of the Asian taxon Erlikosaurus andrewsi, and the lower...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.1885
355 downloads
1,541 views

Two extremely-long necked elasmosaurids, AMNH 1495, holotype of Hydralmosaurus serpentinus, and AMNH 5835, previously referred to H. serpentinus, are here reviewed in detail. Unique features of the cervical vertebrae, which are only present on elasmosaurids from...

["Biogeography","Paleontology","Taxonomy"]
doi:10.7717/peerj.1777
293 downloads
1,681 views

Despite the increasing number of exceptional feathered fossils discovered in the Late Jurassic and Cretaceous of northeastern China, representatives of Ornithurae, a clade that includes comparatively-close relatives of crown clade Aves (extant birds) and that clade,...

["Biodiversity","Paleontology","Zoology"]
doi:10.7717/peerj.1765
157 downloads
717 views

Stegodons are a commonly recovered extinct proboscidean (elephants and allies) from the Pleistocene record of Southeast Asian oceanic islands. Estimates on when stegodons arrived on individual islands and the timings of their extinctions are poorly constrained...

["Biogeography","Paleontology"]
doi:10.7717/peerj.1788

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