Peer-reviewed Articles

114 downloads
744 views

Background Bothremydidae is a clade of extinct pleurodiran turtles known from the Cretaceous to Paleogene of Africa, Europe, India, Madagascar, and North and South America. The group is most diverse during the Late Cretaceous to Paleogene of Africa. Little is known,...

["Paleontology"]
doi:10.7717/peerj.2502
99 downloads
1,003 views

The skull of leporids (rabbits and hares) is highly transformed, typified by pronounced arching of the dorsal skull and ventral flexion of the facial region (i.e., facial tilt). Previous studies show that locomotor behavior influences aspects of cranial shape in...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.2453
151 downloads
783 views

The Ziphiidae (beaked whales) represent a large group of open-ocean odontocetes (toothed cetaceans), whose elusive and deep diving behavior prevents direct observation in their natural habitat. Despite their generally large body size, broad geographical distribution,...

["Evolutionary Studies","Marine Biology","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.2479
117 downloads
902 views

Madagascar’s subfossil record preserves a diverse community of animals including elephant birds, pygmy hippopotamus, giant lemurs, turtles, crocodiles, bats, rodents, and carnivorans. These fossil accumulations give us a window into the island’s past from 80,000...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.2296
173 downloads
1,289 views

The evolution of complexly folded septa in ammonoids has long been a controversial topic. Explanations of the function of these folded septa can be divided into physiological and mechanical hypotheses with the mechanical functions tending to find widespread support....

["Computational Biology","Marine Biology","Paleontology","Zoology"]
doi:10.7717/peerj.2434
902 downloads
3,855 views

Rauisuchids are large (2–6 m in length), carnivorous, and quadrupedal pseudosuchian archosaurs closely related to crocodylomorphs. Though geographically widespread, fossils of this clade are relatively rare in Late Triassic assemblages. The middle Norian (∼212...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.2336
599 downloads
4,692 views

Pterosaurs are an extinct group of highly modified flying reptiles that thrived during the Mesozoic. This group has unique and remarkable skeletal adaptations to powered flight, including pneumatic bones and an elongate digit IV supporting a wing-membrane. Two...

["Paleontology"]
doi:10.7717/peerj.2311
224 downloads
1,104 views

Aetosaurians are some of the most common fossils collected from the Upper Triassic Chinle Formation of Arizona, especially at the Petrified Forest National Park (PEFO). Aetosaurians collected from lower levels of the park include Desmatosuchus spurensis, Paratypothorax,...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.2411
227 downloads
818 views

Background. The primarily Neotropical distribution of living alligatoroids raises questions as to when and how the ancestors of Alligator sinensis migrated to China. As phylogeny provides a necessary framework for historical biogeographic issues, determining the...

["Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.2356
187 downloads
1,176 views

Footprint morphology (e.g., outline shape, depth of impression) is one of the key diagnostic features used in the interpretation of ancient vertebrate tracks. Over 80 tridactyl tracks, confined to the same bedding surface in the Lower Jurassic Elliot Formation...

["Environmental Sciences","Paleontology"]
doi:10.7717/peerj.2285
368 downloads
3,239 views

The diversification of crown cetacean lineages (i.e., crown Odontoceti and crown Mysticeti) occurred throughout the Oligocene, but it remains an ongoing challenge to resolve the phylogenetic pattern of their origins, especially with respect to stem lineages. One...

["Ecology","Evolutionary Studies","Marine Biology","Paleontology","Zoology"]
doi:10.7717/peerj.2321
313 downloads
3,542 views

The “scaly-tailed squirrels” of the rodent family Anomaluridae have a long evolutionary history in Africa, and are now represented by two gliding genera (Anomalurus and Idiurus) and a rare and obscure genus (Zenkerella) that has never been observed alive by mammalogists....

["Evolutionary Studies","Genetics","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.2320
409 downloads
3,109 views

The pedal range of motion in Australovenator wintonensis is investigated to determine what influence soft tissue had on range of motion in the foot. Fortunately, the theropod pes shares a close morphology with extant large cursorial birds. Therefore, to better...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.2312
368 downloads
1,644 views

Phytosaurs are a clade of large, carnivorous pseudosuchian archosaurs from the Late Triassic with a near cosmopolitan distribution. Their superficial resemblance to longirostrine (long-snouted) crocodylians, such as gharials, has often been used in the past to...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.2251
298 downloads
1,552 views

The new neopterygian genus Ticinolepis, including two new species T. longaeva and T. crassidens is described from Middle Triassic carbonate platform deposits of the Monte San Giorgio. The anatomy of this fish shows a mosaic of halecomorph and ginglymodian characters...

["Paleontology","Zoology"]
doi:10.7717/peerj.2234

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