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paleontology
61 downloads
575 views

Dakotaraptor steini is a recently described dromaeosaurid dinosaur from the Upper Cretaceous (Maastrichtian) Hell Creek Formation of South Dakota. Included within the D. steini hypodigm are three elements originally identified as furculae, one of which was made...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.1691
80 downloads
372 views

The Nimravidae is a family of extinct carnivores commonly referred to as “false saber-tooth cats.” Since their initial discovery, they have prompted difficulty in taxonomic assignments and number of valid species. Past revisions have only examined a handful of...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.1658
65 downloads
417 views

The Tennessee River Basin is considered one of the most important regions for freshwater biodiversity anywhere on the globe. The Tennessee River Basin currently includes populations of at least half of the described contemporary diversity of extant North American...

["Aquaculture, Fisheries and Fish Science","Biogeography","Ecology","Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.1648
42 downloads
104 views

Cluster analysis is one of the most commonly used methods in palaeoecological studies, particularly in studies investigating biogeographic patterns. Although a number of different clustering methods are widely used, the approach and underlying assumptions of many...

["Biogeography","Computational Biology","Ecology","Mathematical Biology","Paleontology"]
doi:10.7287/peerj.preprints.1693v1
271 downloads
892 views

Melanorosaurus is a genus of basal sauropodomorph that currently includes two species from Southern Africa. In this paper, we redescribe the holotype femur of Melanorosaurus thabanensis from the Elliot Formation of Lesotho, as well as associated remains. The stratigraphic...

["Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.1639
226 downloads
814 views

The ‘rauisuchians’ are a group of Triassic pseudosuchian archosaurs that displayed a near global distribution. Their problematic taxonomic resolution comes from the fact that most taxa are represented only by a few and/or mostly incomplete specimens. In the last...

["Paleontology"]
doi:10.7717/peerj.1622
357 downloads
1,300 views

The subfamily Rubidgeinae, containing the largest known African gorgonopsians, is thoroughly revised. Rubidgeinae is diagnosed by the absence of a blade-like parasphenoid rostrum and reduction or absence of the preparietal. Seven rubidgeine species from the Karoo...

["Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.1608
139 downloads
443 views

We report a new ichthyopterygian assemblage from Lower Triassic horizons of the Prida Formation at Fossil Hill in central Nevada. Although fragmentary, the specimens collected so far document a diverse fauna. One partial jaw exhibits isodont dentition with blunt...

["Evolutionary studies","Paleontology"]
doi:10.7717/peerj.1626
175 downloads
462 views

Background. Powered flight is implicated as a major driver for the success of birds. Here we examine the effectiveness of three hypothesized pathways for the evolution of the flight stroke, the forelimb motion that powers aerial locomotion, in a terrestrial setting...

["Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.1676v1
102 downloads
288 views

The Eocene (∾48 Ma) Messel Pit in Germany is a UNESCO World Heritage Site because of its exceptionally preserved fossils, including vertebrates, invertebrates, and plants. Messel fossil vertebrates are typically characterized by their articulated state, and in...

["Cell Biology","Paleontology","Zoology"]
doi:10.7717/peerj.1618
396 downloads
1,372 views

Aetosauria is an early-diverging clade of pseudosuchians (crocodile-line archosaurs) that had a global distribution and high species diversity as a key component of various Late Triassic terrestrial faunas. It is one of only two Late Triassic clades of large herbivorous...

["Evolutionary studies","Paleontology"]
doi:10.7717/peerj.1583
274 downloads
992 views

Non-avian saurischian skulls underwent at least 165 million years of evolution and shapes varied from elongated skulls, such as in the theropod Coelophysis, to short and box-shaped skulls, such as in the sauropod Camarasaurus. A number of factors have long been...

["Biodiversity","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.1589
137 downloads
579 views

Body size is an extremely important characteristic, impacting on a variety of ecological and life-history traits. It is therefore important to understand the factors which may affect its evolution, and diet has attracted much interest in this context. A recent...

["Evolutionary studies","Paleontology"]
doi:10.7717/peerj.1555
123 downloads
999 views

The external appearance of the dodo (Raphus cucullatus, Linnaeus, 1758) has been a source of considerable intrigue, as contemporaneous accounts or depictions are rare. The body mass of the dodo has been particularly contentious, with the flightless pigeon alternatively...

["Paleontology","Zoology","Radiology and Medical Imaging"]
doi:10.7717/peerj.1432
218 downloads
1,170 views

Upright walking absent a bent-hip-bent-knee gait requires lumbar lordosis, a ubiquitous feature in all hominids for which it can be observed. Its first appearance is therefore a central problem in human evolution. Atelids, which use the tail during suspension,...

["Anthropology","Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.1521

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