Preprints (not yet peer-reviewed)

375 downloads
828 views

Xenoposeidon proneneukos is a sauropod dinosaur represented by a single partial dorsal vertebra, NHMUK R2095, which consists of the centrum and the base of a tall neural arch. Despite its fragmentary nature, it is recognisably distinct from all other sauropods,...

["Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.3415v1
20 downloads
135 views

Peramelemorphia comprises four families: the extant Peramelidae (bandicoots), and Thylacomyidae (bilbies); the recently extinct Chaeropodidae (pig-footed bandicoot); and the extinct Yaralidae; with at least ten fossil species of uncertain familial affinity designated...

["Evolutionary Studies","Paleontology","Anatomy and Physiology"]
doi:10.7287/peerj.preprints.3393v1
18 downloads
105 views

Geographic range is used as a correlate of extinction risk for extant and extinct organisms across the fields of conservation and paleobiology. However, the exact method used to measure geographic range, the biases, and the limitations of each are rarely discussed...

["Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.3379v1
153 downloads
1,121 views

Spinosaurids (Diapsida: Spinosauridae) and sphenacodontids (Synapsida: Sphenacodontidae) share not only a characteristic tall neural spines, but also an atypical – compared to their close respective relatives – ecology, i.e. apparently piscivorous and possibly...

["Ecology","Evolutionary Studies","Paleontology","Zoology"]
doi:10.7287/peerj.preprints.2917v2
23 downloads
192 views

The White Hunter (WH) Local Fauna (LF) is one of the oldest assemblages from the Riversleigh World Heritage Area, belonging to Faunal Zone A and tentatively dated at approximately 24 Ma. The mammalian fauna has many plesiomorphic taxa and a wide range of body sizes...

["Ecology","Evolutionary Studies","Paleontology","Zoology"]
doi:10.7287/peerj.preprints.3314v1
13 downloads
91 views

Australian mekosuchines (Crocodylia; Crocodyloidea) with their wide diversity of cranial shape and inferred hunting strategies present a fascinating window into the diversification processes of crocodilians. This includes lingering questions as to the extent of...

["Ecology","Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.3293v1
17 downloads
131 views

The Antony John Sutcliffe Collection is a unique taphonomic reference collection held within the Department of Earth Sciences at the Natural History Museum (NHM). Sutcliffe was the Curator of Fossil Mammal at the NHM from 1957 to 1987, during which time he collected...

["Animal Behavior","Ecology","Paleontology","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.3280v1
51 downloads
443 views

Ankylosaur remains are frequently recovered from the Lower Cretaceous Wealden deposits of the Isle of Wight, although the vast majority of these fossils represent postcranial elements and osteoderms. The rarity of ankylosaur cranial material means any new specimens...

["Paleontology"]
doi:10.7287/peerj.preprints.3277v1
34 downloads
316 views

The study of ontogeny in the fossil record is complicated by two main factors: growth series are not available for many taxa, and correctly assigning juveniles and adults to the same taxon is often difficult, especially where several related taxa coexisted. Ontogenetic...

["Developmental Biology","Evolutionary Studies","Marine Biology","Paleontology","Zoology"]
doi:10.7287/peerj.preprints.3162v2
30 downloads
142 views

Eucamerotus foxi is a macronarian sauropod from the Wessex Formation (Early Cretaceous, Barremian) of the Isle of Wight. It is represented by NHMUK R2522, a partial dorsal neural arch, and differs from other known sauropods by the presence of a stout robust prezygoparapophyseal...

["Paleontology"]
doi:10.7287/peerj.preprints.3247v1
19 downloads
127 views

The Callovian Oxford Clay of England has yielded a rich and diverse marine fauna, mainly discovered and described by Alfred Leeds. However, occasionally it also brought forth terrestrial fossils, including four isolated cases of sauropod remains, one of a stegosaurid,...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology","Anatomy and Physiology"]
doi:10.7287/peerj.preprints.3243v1
105 downloads
558 views

AMNH FARB 291 is a unique sauropod dinosaur specimen, excavated in 1898 from the Bone Cabin Quarry of Wyoming (Upper Jurassic; Morrison Formation). It consists of a sequence of five contiguous dorsal vertebrae, all with biconvex centra: a morphology not previously...

["Developmental Biology","Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.3144v2
24 downloads
148 views

The Dipnomorpha include the extinct Porolepiformes, in addition to Powichthys and Youngolepis and the extant Dipnoi (lungfish). As sister group to the Tetrapodomorpha, the Dipnomorpha hold a valuable place in our understanding of early sarcopterygian evolution....

["Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.3235v1
23 downloads
150 views

The Middle Jurassic was a pivotal time for many vertebrate groups: recent research suggests mammals experienced a surge in ecological diversity at this time. However, vertebrate fossils from the Middle Jurassic are rare. Until now, Middle Jurassic mammals in the...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.3232v1
14 downloads
113 views

The village of Stolbovo, western Russia, has previously yielded a dipnoan fauna comprising the long-snouted form 'Rhinodipterus' stolbovi, but also a three-dimensionally preserved otoccipital region of a skull previously identified as the osteolepiform ‘Latvius’...

["Paleontology"]
doi:10.7287/peerj.preprints.3231v1
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