Peer-reviewed Articles

54 downloads
300 views

New Pleistocene fossilized turtle remains from five localities of western Ecuador (Santa Elena Province) are described here. All these shell (carapace and plastron) fossil remains come from the Tablazo Formation and belong to three different lineages of cryptodires...

["Biodiversity","Evolutionary Studies","Paleontology","Taxonomy","Histology"]
doi:10.7717/peerj.3215
110 downloads
792 views

Metoposaurids are temnospondyl amphibians that are commonly recovered from the Chinle Formation deposits of North America. Two species, Koskinonodon perfectus and Apachesaurus gregorii, are known from Petrified Forest National Park (PEFO), AZ. Small, elongate intercentra...

["Evolutionary Studies","Paleontology","Taxonomy","Histology"]
doi:10.7717/peerj.3183
115 downloads
714 views

The evolution of herbivory in early tetrapods was crucial in the establishment of terrestrial ecosystems, although it is so far unclear what effect this innovation had on the macro-evolutionary patterns observed within this clade. The clades that entered this under-filled...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.3200
268 downloads
987 views

Synapsida, the clade including therapsids and thus also mammals, is one of the two major branches of amniotes. Organismal design, with modularity as a concept, offers insights into the evolution of therapsids, a group that experienced profound anatomical transformations...

["Developmental Biology","Evolutionary Studies","Neuroscience","Paleontology","Anatomy and Physiology"]
doi:10.7717/peerj.3119
218 downloads
789 views

Background Previous quantitative studies on Bauruemys elegans (Suárez, 1969) shell variation, as well as the taphonomic interpretation of its type locality, have suggested that all specimens collected in this locality may have belonged to the same population. We...

["Paleontology","Zoology"]
doi:10.7717/peerj.2890
95 downloads
693 views

Most reconstruction methods for genomes of ancient origin that are used today require a closely related reference. In order to identify genomic rearrangements or the deletion of whole genes, de novo assembly has to be used. However, because of inherent problems...

["Bioinformatics","Paleontology","Computational Science"]
doi:10.7717/peerj.3126
223 downloads
802 views

Background The present-day amphibian and reptile fauna of Western Siberia are the least diverse of the Palaearctic Realm, as a consequence of the unfavourable climatic conditions that predominate in this region. The origin and emergence of these herpetofaunal groups...

["Biodiversity","Biogeography","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.3025
377 downloads
3,570 views

The abundant dinosaurian tracksites of the Lower Cretaceous (Valanginian–Barremian) Broome Sandstone of the Dampier Peninsula, Western Australia, form an important part of the West Kimberley National Heritage Place. Previous attempts to document these tracksites...

["Paleontology","Computational Science"]
doi:10.7717/peerj.3013
182 downloads
941 views

Background Ancient protein sequences are increasingly used to elucidate the phylogenetic relationships between extinct and extant mammalian taxa. Here, we apply these recent developments to Middle Pleistocene bone specimens of the rhinoceros genus Stephanorhinus....

["Bioinformatics","Evolutionary Studies","Molecular Biology","Paleontology"]
doi:10.7717/peerj.3033
232 downloads
1,262 views

The fossil record of dinosaurs from the Early Cretaceous of Eastern North America is scant, especially since a few stratigraphic units from the east are fossiliferous. Among these stratigraphic units, the Arundel Clay of the eastern seaboard has produced the best-characterized...

["Biogeography","Paleontology"]
doi:10.7717/peerj.3110
274 downloads
2,442 views

Mourasuchus (Alligatoroidea, Caimaninae) is one of the most peculiar crocodyliforms due to the skull morphology consisting of a long, wide, dorsoventrally flat rostrum with long, slender mandibular rami. Despite these peculiarities, the systematics, phylogeny and...

["Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.3056
216 downloads
1,422 views

Bayesian phylogenetic methods integrating simultaneously morphological and stratigraphic information have been applied increasingly among paleontologists. Most of these studies have used Bayesian methods as an alternative to the widely-used parsimony analysis,...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.3055
205 downloads
1,299 views

Fragmentary caudal ends of the left and right mandible assigned to Lesothosaurus diagnosticus, an early ornithischian, was recently discovered in the continental red bed succession of the upper Elliot Formation (Lower Jurassic) at Likhoele Mountain (Mafeteng District)...

["Paleontology","Histology"]
doi:10.7717/peerj.3054
175 downloads
1,114 views

A new taxon of stem otariid, Eotaria citrica sp. nov., is described from the upper Burdigalian to lower Langhian “Topanga” formation of Orange County, California. The new species is described from mandibular and dental remains that show a unique combination of...

["Evolutionary Studies","Marine Biology","Paleontology","Taxonomy"]
doi:10.7717/peerj.3022
136 downloads
877 views

Background Prophoca and Leptophoca represent the oldest known genera of phocine seals, dating from the latest early to middle Miocene. Originally, Prophoca rousseaui and Prophoca proxima were described based on fragmentary remains from the Miocene of Belgium. However,...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.3024

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