Preprints (not yet peer-reviewed)

284 downloads
608 views

Vertebrate bone is composed of three main cell types, the most prominent of which are the osteocytes. These cells are thought to play a fundamental role in bone physiology, however they are entirely absent in most extant species of teleosts, a group that comprises...

["Aquaculture, Fisheries and Fish Science","Evolutionary Studies","Paleontology","Zoology","Histology"]
doi:10.7287/peerj.preprints.27406v1
109 downloads
167 views

Both animal hibernation (heterothermy) and human renal osteodystrophy are characterized by high levels of serum parathyroid hormone. To test the hypothesis of hibernation in an extinct human species, we examined the hominin skeletal collection from Sima de los...

["Anthropology","Paleontology","Anatomy and Physiology","Nephrology","Metabolic Sciences"]
doi:10.7287/peerj.preprints.27370v1
65 downloads
157 views

Identification of biologic objects in images is a major source of biodiversity data. Currently this is done by scarce taxonomic experts and data is thus limited in scope and reproducibility. Automated identification in fields such as plankton research or micropaleontology,...

["Paleontology","Data Mining and Machine Learning"]
doi:10.7287/peerj.preprints.27328v1
182 downloads
415 views

Rugose Corals, often referred to as Horn Coral, are an extinct order of stony corals in the phylum Cnidaria. They lived from the Ordivician period to the end of the Permian period, and can be found worldwide. A new fossil of Siphonophrentis gigantea, a species...

["Evolutionary Studies","Marine Biology","Paleontology","Aquatic and Marine Chemistry"]
doi:10.7287/peerj.preprints.27282v2
452 downloads
1,107 views

The Cretaceous Kem Kem beds of Morocco and equivalent beds in Algeria have produced a rich fossil assemblage, yielding, amongst others, isolated sauropod teeth, which can be used in species diversity studies. These Albian-Cenomanian (~113 – 93.9 Ma) strata rarely...

["Biodiversity","Biogeography","Paleontology","Taxonomy"]
doi:10.7287/peerj.preprints.27286v1
240 downloads
330 views

The Araripe Basin (Northeastern Brazil) has yielded a rich Cretaceous fossil fauna of both vertebrates and invertebrates found mainly in the Crato and Romualdo Formations, of Aptian and Albian ages respectively. Among the vertebrates, the turtles were proved quite...

["Paleontology","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.27262v1
760 downloads
2,751 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.3442v2
803 downloads
1,820 views

The oldest feathers known to date have been found in archosaurs capable to fly. However, some of them (scansoriopterygids) flied by the use of a membrane rather than feathers. We therefore propose a new mechanism for the origin of avian flight by the use of membranous...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7287/peerj.preprints.27213v1
248 downloads
541 views

ABSTRACT: The discovery of Paranthropus deyiremeda in 3.3–3.5 million year old fossil sites in Afar, together with 30% of the gorilla genome showing lineage sorting between humans and chimpanzees, and a NUMT (“nuclear mitochondrial DNA segment”) on chromosome 5...

["Anthropology","Evolutionary Studies","Genomics","Paleontology"]
doi:10.7287/peerj.preprints.27163v1
279 downloads
460 views

The use of personal ornaments by Neandertals is one of the scarce evidence of their symbolic behaviour. Among them stand up the eagle talons used presumably as pendants, in an analogous way than anatomically Modern Humans (Homo sapiens) did. Considering the broad...

["Anthropology","Evolutionary Studies","Paleontology","Zoology"]
doi:10.7287/peerj.preprints.27133v1
96 downloads
181 views

Tertiary dentine forms when an odontoblast is directly affected by stimuli, commonly through occlusal wear. In this study the presence of tertiary dentine is recorded in three South African fossil hominin species (Australopithecus africanus, Homo naledi and Paranthropus...

["Anthropology","Ecology","Evolutionary Studies","Paleontology","Dentistry"]
doi:10.7287/peerj.preprints.27115v1
100 downloads
171 views

A conglomerate bed from the Tournaisian Ballagan Formation of Scotland preserves a rich array of vertebrate and other non-marine fossils providing an insight into the wider ecosystem and palaeoenvironment that existed during this pivotal stage of Earth history....

["Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.27102v1
169 downloads
272 views

The Atlantic gray whale (Eschrichtius robustus) presents an interesting case study of climate related dispersal and local extinction. While (limited) fossil records confirm its presence in the Atlantic until the 18th century, its abundance and distribution with...

["Biogeography","Conservation Biology","Ecology","Paleontology"]
doi:10.7287/peerj.preprints.27025v2
1,684 downloads
2,592 views

Synopsis: Tyrannosaurid dinosaurs had larger than predicted preserved leg muscle attachments and low rotational inertia relative to their body mass, indicating that they could turn more quickly than other large theropods. Methods: To compare turning capability...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7287/peerj.preprints.27021v1
398 downloads
837 views

Crocodyliformes have undergone few modifications in their morphology since they have emerged. The change in the position of the choana was important during the evolutionary history of this group. Such character is relevant in the phylogenetic position of many crocodyliforms....

["Paleontology"]
doi:10.7287/peerj.preprints.26956v1
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