Just out | Bone histology of the Middle Triassic long-necked reptiles Tanystropheus and Macrocnemus (Archosauromorpha, Protorosauria) @ Journal of Vertebrate Paleontology


Just out @ Journal of Vertebrate Paleontology


Bone histology of the Middle Triassic long-necked reptiles Tanystropheus and Macrocnemus (Archosauromorpha, Protorosauria)


Author(s)

Vivien P. Jaquier & Torsten M. Scheyer


Introduction (excerpt):

Tanystropheus and Macrocnemus are two Middle Triassic representatives of the Protorosauria (Archosauromorpha). Their cervical vertebrae are elongated, a trait characteristic for protorosaurs but particularly pronounced in Tanystropheidae, including the name-giving taxon Tanystropheus (Peyer, 1931). The morphology of Macrocnemus is in accordance with a terrestrial habit (Rieppel, 1989). In contrast, the lifestyle of Tanystropheus is not clearly identifiable and osteological analyses have not yet been able to settle the issues of the anatomically correct posture of the neck and the habit of Tanystropheus.

Besides historical (phylogenetic) aspects, bone histology is now widely used to trace biological, environmental, and mechanical factors that an animal is subject to during its life span (e.g., Horner et al., 1999; Ricqlès, 2001; Canoville and Laurin, 2010; Houssaye, 2013; Padian and Lamm, 2013; Klein et al., 2016). Here we performed a bone histological analysis of selected postcranial bones (including cervical vertebrae and ribs, and long bones) of Tanystropheus and Macrocnemus in order to infer their paleoecology and mode of growth. (…)


DOI: 10.1080/02724634.2017.1296456


READ IT HERE: http://www.tandfonline.com/doi/full/10.1080/02724634.2017.1296456

Lurdes Fonseca

Assistant Professor and Researcher at University of Lisbon
Sociologist (PhD), Paleontologist (Researcher in Micropaleontology), Majors in Sociology and Biology, Minor in Geology. Main interests in Paleontology: Microfossils, Molecular fossils, Paleobiology and Paleoecology. (read more about me)