Total of 57 results Filter on subject area
paleontology
17 downloads
246 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
17 downloads
106 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
50 downloads
214 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
95 downloads
408 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
50 downloads
256 views

The middle Eocene species Caenopithecus lemuroides, known solely from the Egerkingen fissure fillings in Switzerland, was the first Paleogene fossil primate to be correctly identified as such (by Ludwig Rütimeyer in 1862), but has long been represented only by...

["Paleontology"]
doi:10.7717/peerj.1036
437 downloads
2,491 views

The exceptionally well-preserved Romanian dinosaur Balaur bondoc is the most complete theropod known to date from the Upper Cretaceous of Europe. Previous studies of this remarkable taxon have included its phylogenetic interpretation as an aberrant dromaeosaurid...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.1032
216 downloads
1,125 views

Pterodactyloid pterosaurs are widely interpreted as terrestrially competent, erect-limbed quadrupeds, but the terrestrial capabilities of non-pterodactyloids are largely thought to have been poor. This is commonly justified by the absence of a non-pterodactyloid...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.1018
32 downloads
313 views

Unworn teeth of herbivorous mammals are not immediately functional. They have to be partially worn to expose enamel ridges which can then act as shear-cutting blades to break the food down. We use the Plains Zebra (Equus quagga) as a hypsodont, herbivorous model...

["Ecology","Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.1002
105 downloads
454 views

A new parvicursorine alvarezsauroid theropod specimen IVPP V20341 from the Upper Cretaceous Wulansuhai Formation of Bayan Mandahu, Inner Mongolia, China is described. IVPP V20341 appears to be distinguishable amongst alvarezsauroids by possible cervical procoely...

["Biodiversity","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.986
381 downloads
1,693 views

Adult large-bodied theropods are often found with numerous pathologies. A large, almost complete, probably adult Allosaurus specimen from the Howe Stephens Quarry, Morrison Formation (Late Kimmeridgian–Early Tithonian), Wyoming, exhibits multiple pathologies. Pathologic...

["Animal Behavior","Paleontology","Veterinary Medicine","Zoology","Pathology"]
doi:10.7717/peerj.940
135 downloads
908 views

Thylacinus yorkellus is described as a new, moderately small-bodied species of thylacinid from the latest Miocene or, more likely, earliest Pliocene of South Australia. The new species can be diagnosed by the autapomorphic presence a strongly developed precingulid...

["Biodiversity","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.931
218 downloads
1,253 views

Sexual dimorphism in body size is often used as a correlate of social and reproductive behavior in Australopithecus afarensis. In addition to a number of isolated specimens, the sample for this species includes two small associated skeletons (A.L. 288-1 or “Lucy”...

["Anthropology","Paleontology"]
doi:10.7717/peerj.925
82 downloads
481 views

The Paleozoic–Mesozoic transition is characterized by the most massive extinction of the Phanerozoic. Nevertheless, an impressive adaptive radiation of herbivorous insects occurred on gymnosperm-dominated floras not earlier than during the Middle to Late Triassic,...

["Ecology","Paleontology"]
doi:10.7717/peerj.921
109 downloads
1,125 views

Originally identified as an ornithischian dinosaur, Crosbysaurus harrisae has been found in New Mexico, Arizona, and its type locality in Texas, as well as in North Carolina. The genus has been reassessed by other workers in light of reinterpretations about the...

["Paleontology"]
doi:10.7717/peerj.905
183 downloads
1,153 views

We report a new deltatheroidan mammal from the Upper Cretaceous of Henna, China. The new taxon, Lotheridium mengi, is based on a nearly complete skull and associated lower jaws with full adult dentition. Deltatheroidans are known mostly from fragmentary specimens...

["Paleontology"]
doi:10.7717/peerj.896

Top subject areas - Articles

Top subject areas - People

View all subject areas