43 downloads
615 views

Background In this paper, we propose a new method, named the intervals’ method, to analyse data from finite element models in a comparative multivariate framework. As a case study, several armadillo mandibles are analysed, showing that the proposed method is useful...

["Animal Behavior","Mathematical Biology","Paleontology"]
doi:10.7717/peerj.3793
137 downloads
1,044 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
10 downloads
139 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
365 downloads
3,640 views

Fossils are almost always represented by hard tissues but we present here the exceptional case of a three-dimensionally preserved specimen that was ‘mummified’ (likely between 40 and 34 million years ago) in a terrestrial karstic environment. This fossil is the...

["Paleontology","Zoology"]
doi:10.7717/peerj.3861
10 downloads
67 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
101 downloads
1,190 views

Rodents are the most speciose group of mammals and display a great ecological diversity. Despite the greater amount of ecomorphological information compiled for extant rodent species, studies usually lack of morphological data on dentition, which has led to difficulty...

["Ecology","Paleontology"]
doi:10.7717/peerj.3646
13 downloads
110 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
46 downloads
424 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
27 downloads
279 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
267 downloads
1,760 views

Mosasauroid squamates represented the apex predators within the Late Cretaceous marine and occasionally also freshwater ecosystems. Proper understanding of the origin of their ecological adaptations or paleobiogeographic dispersals requires adequate knowledge of...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.3782
217 downloads
916 views

Postcranial remains of Boreogomphodon from the Upper Triassic of North Carolina are described and compared to those of other known traversodontid cynodonts. The postcranial skeleton of Boreogomphodon is characterized by four sacral ribs, simple ribs lacking costal...

["Paleontology"]
doi:10.7717/peerj.3521
23 downloads
114 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
17 downloads
108 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
99 downloads
508 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
18 downloads
119 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

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