Preprints (not yet peer-reviewed)

Here we provide a detailed description of the postcranial skeleton of the holotype and referred specimens of Buitreraptor gonzalezorum. This taxon was recovered as a unenlagiine dromaeosaurid in several recent phylogenetic studies and is the best represented Gondwanan...

["Paleontology","Taxonomy","Histology"]
doi:10.7287/peerj.preprints.26450v1
979 downloads
2,707 views

The largest published phylogenetic analysis of early limbed vertebrates (Ruta M, Coates MI. 2007. Journal of Systematic Palaeontology 5:69–122) recovered e.g. Seymouriamorpha, Diadectomorpha and (in some trees) Caudata as paraphyletic and found the “temnospondyl...

["Biodiversity","Ecology","Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.1596v3
239 downloads
522 views

Background. Minute to medium-sized (FL less than 30 cm) tridactyl dinosaur tracks are the most abundant in the Late Jurassic tracksites of Highway A16 (Reuchenette Formation, Kimmeridgian) in the Jura Mountains (NW Switzerland). During excavations, two morphotypes,...

["Paleontology"]
doi:10.7287/peerj.preprints.3506v1
319 downloads
1,747 views

Bears Ears National Monument (BENM) is a new, landscape-scale national monument jointly administered by the Bureau of Land Management and the Forest Service in southeastern Utah as part of the National Conservation Lands system. As initially designated, BENM encompasses...

["Paleontology","Natural Resource Management"]
doi:10.7287/peerj.preprints.3442v1
88 downloads
190 views

Background. A wealth of data on the networks of ecological interactions present in the modern biota can be readily obtained, due to the ease of unlimited access to the living organisms that form these networks. In contrast, understanding of such interactions in...

["Evolutionary Studies","Paleontology","Plant Science"]
doi:10.7287/peerj.preprints.3422v1
667 downloads
1,331 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
49 downloads
209 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
28 downloads
154 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
190 downloads
1,176 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
44 downloads
241 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
25 downloads
126 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
23 downloads
153 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
62 downloads
465 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
43 downloads
360 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
40 downloads
165 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
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