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paleontology
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In contrast to dominant mode of ecological transition in the evolution of marine mammals, different lineages of toothed whales (Odontoceti) have repeatedly invaded freshwater ecosystems during the Cenozoic era. The so-called ‘river dolphins’ are now recognized...

["Ecology","Evolutionary Studies","Marine Biology","Paleontology","Zoology"]
doi:10.7717/peerj.1227
38 downloads
289 views

Background. Neochelys franzeni Schleich, 1993 is the only pleurodire or side-necked turtle from the middle Eocene, Messel Pit (the first UNESCO, World Natural Heritage Site in Germany, since 1995). The original description of the species is based on two specimens...

["Biodiversity","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.1221
325 downloads
1,780 views

Despite being known for nearly two centuries, new specimens of the derived non-pterodactyloid pterosaur Rhamphorhynchus continue to be discovered and reveal new information about their anatomy and palaeobiology. Here we describe a specimen held in the collections...

["Paleontology"]
doi:10.7717/peerj.1191
1 citation
123 downloads
571 views

Background. The Late Cretaceous is a keystone period to understand the origin and early radiation of Crocodylia, the group containing all extant lineages of crocodilians. Among the taxa described from the latest Cretaceous of Europe, the genus Allodaposuchus is...

["Animal Behavior","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.1171
71 downloads
419 views

Background. The Cretaceous of southern Europe was characterized by an archipelago setting with faunas of mixed composition of endemic, Laurasian and Gondwanan elements. However, little is known about the relative timing of these faunal influences. The Lower Cretaceous...

["Paleontology"]
doi:10.7717/peerj.1160
44 downloads
376 views

Giraffa sivalensis occurred during the Plio-Pleistocene period and probably represents the terminal species of the genus in Southern Asia. The holotype is an almost perfectly preserved cervical vertebra of disputed anatomical location. Although there is also uncertainty...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.1135
33 downloads
187 views

Background. In a recent paper, we proposed a lectotype for the species Plesiochelys langii Rütimeyer, 1873. However, we failed to register this publication in ZooBank as required by the International Commission on Zoological Nomenclature (ICZN) for electronic publication....

["Paleontology","Taxonomy"]
doi:10.7717/peerj.1108
230 downloads
650 views

Palaeopathology offers unique insight to the healing strategies of extinct organisms, permitting questions concerning bone physiology to be answered in greater depth. Unfortunately, most palaeopathological studies are confined to external morphological interpretations...

["Paleontology","Veterinary Medicine","Zoology","Histology"]
doi:10.7717/peerj.1130
245 downloads
1,347 views

Ornithomimosaur dinosaurs evolved lightweight, edentulous skulls that possessed keratinous rhamphothecae. Understanding the anatomy of these taxa allows for a greater understanding of “ostrich-mimic” dinosaurs and character change during theropod dinosaur evolution....

["Paleontology"]
doi:10.7717/peerj.1093
88 downloads
455 views

Only three species of fossil murine have been described to date in Australia even though they are often found in fossil deposits and can be highly useful in understanding environmental change over time. Until now the genus Leggadina, a group of short-tailed mice...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.1088
80 downloads
809 views

The coexistence of multiple hominin species during the Lower Pleistocene has long presented a challenge for taxonomic attribution of isolated postcrania. Although fossil humeri are well-suited for studies of hominin postcranial variation due to their relative abundance,...

["Anthropology","Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.1084
61 downloads
516 views

Larger benthic foraminifera (LBF) are important and prolific carbonate producers both in modern and ancient shallow tropical seas. During the Paleogene the genus Nummulites was particularly abundant with a global distribution, leading it to be frequently used in...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.1072
64 downloads
336 views

Some higher plants, both angiosperms and gymnosperms, can produce resins and some of these resins can polymerize and fossilize to form ambers. Various physical and chemical techniques have been used to identify and profile different plant resins and have then been...

["Paleontology","Plant Science"]
doi:10.7717/peerj.1067
141 downloads
569 views

The extinct Stereogenyina turtles form a relatively diverse Podocnemididae lineage, with twelve described and phylogenetically positioned species. They are characterized by a wide geographic and temporal range, from the Eocene of Africa to the Pleistocene of Southeast...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.1063
117 downloads
491 views

Triassic vertebrate tracks are known from the beginning of the 19th century and have a worldwide distribution. Several Triassic track ichnoassemblages and ichnotaxa have a restricted stratigraphic range and are useful in biochronology and biostratigraphy. The record...

["Biogeography","Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.1044

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