Peer-reviewed Articles

129 downloads
625 views

Background Macelognathus vagans Marsh, 1884 from the Late Jurassic Morrison Fm. of Wyoming was originally described as a dinosaur by Marsh and in 1971 Ostrom suggested crocodilian affinities. In 2005, Göhlich and collaborators identified new material of this species...

["Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.2801
433 downloads
7,287 views

Azhdarchid pterosaurs include the largest animals to ever take to the skies with some species exceeding 10 metres in wingspan and 220 kg in mass. Associated skeletons show that azhdarchids were long-necked, long-jawed predators that combined a wing planform suited...

["Paleontology","Zoology"]
doi:10.7717/peerj.2908
65 downloads
322 views

Background The shells of molluscs survive well in many sedimentary contexts and yield information about the diet of prehistoric humans. They also yield evidence of symbolic behaviours through their use as beads for body adornments. Researchers often analyse the...

["Ecology","Marine Biology","Paleontology","Zoology"]
doi:10.7717/peerj.2903
275 downloads
1,100 views

Non-mammaliaform cynodonts gave rise to mammals but the reproductive biology of this extinct group is still poorly known. Two exceptional fossils of Galesaurus planiceps and Thrinaxodon liorhinus, consisting of juveniles closely associated with an adult, were briefly...

["Animal Behavior","Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.2875
362 downloads
1,244 views

The holotype of Brancasaurus brancai is one of the most historically famous and anatomically complete Early Cretaceous plesiosaurian fossils. It derived from the Gerdemann & Co. brickworks clay pit near Gronau (Westfalen) in North Rhine-Westphalia, northwestern...

["Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.2813
61 downloads
465 views

Background Cornaceae consists of 58 species, all within the genus Cornus. The Cenozoic record of Cornus is extensive and well documented. Molecular divergence-time studies suggest that crown-group Cornus may have originated by the Late Cretaceous. However, there...

["Paleontology","Plant Science"]
doi:10.7717/peerj.2808
159 downloads
843 views

Exceptionally well-preserved three-dimensional insects with fine details and even labile tissues are ubiquitous in the Crato Member Konservat Lagerstätte (northeastern Brazil). Here we investigate the preservational pathways which yielded such specimens. We employed...

["Entomology","Paleontology"]
doi:10.7717/peerj.2756
227 downloads
1,059 views

A series of sandstone slabs from Hamstead, Birmingham (West Midlands, UK), preserve an assemblage of tetrapod trackways and individual tracks from the Enville Member of the Salop Formation (late Carboniferous: late Moscovian–Kasimovian). This material has received...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.2718
197 downloads
1,005 views

Hyaenodonta is a diverse, extinct group of carnivorous mammals that included weasel- to rhinoceros-sized species. The oldest-known hyaenodont fossils are from the middle Paleocene of North Africa and the antiquity of the group in Afro-Arabia led to the hypothesis...

["Biogeography","Paleontology","Taxonomy"]
doi:10.7717/peerj.2639
231 downloads
1,406 views

In this study, 21 skull bones of Metoposaurus krasiejowensis from the Late Triassic of Poland were investigated histologically. Dermal bones show a diploë structure, with an ornamented external surface. The ridges consist of mostly well vascularized parallel-fibered...

["Paleontology","Histology"]
doi:10.7717/peerj.2685
103 downloads
548 views

Lophosteus superbus is one of only a handful of probable stem-group osteichthyans known from the fossil record. First collected and described in the late 19th century from the upper Silurian Saaremaa Cliff locality in Estonia, it is known from a wealth of disarticulated...

["Paleontology","Histology"]
doi:10.7717/peerj.2521
146 downloads
608 views

Proteomic studies of bone require specialized extraction protocols to demineralize and solubilize proteins from within the bone matrix. Although various protocols exist for bone protein recovery, little is known about how discrete steps in each protocol affect...

["Bioinformatics","Molecular Biology","Paleontology"]
doi:10.7717/peerj.2603
145 downloads
482 views

Background Abundant pan-trionychid (soft-shell) turtles specimens have been found in Eocene sequences of central Europe, particularly from two localities in Germany, the Messel Pit (a UNESCO World Natural Heritage Site) and Geiseltal, traditionally attributed to...

["Biodiversity","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.2647
1 citation
238 downloads
948 views

A complex and confusing taxonomy has concealed the diversity dynamics of Cretaceous ichthyosaurs (Reptilia) for decades. The near totality of Albian-Cenomanian remains from Eurasia has been assigned, by default, to the loosely defined entity Platypterygius campylodon,...

["Biodiversity","Paleontology","Taxonomy"]
doi:10.7717/peerj.2604
259 downloads
1,320 views

The Early Jurassic of China has long been recognized for its diverse array of sauropodomorph dinosaurs. However, the contribution of this record to our understanding of early sauropod evolution is complicated by a dearth of information on important transitional...

["Biogeography","Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.2578

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