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Bone histology of two pareiasaurs from Russia (Deltavjatia rossica and Scutosaurus karpinskii) with implications for pareiasaurian palaeobiology

Published on Jul 5, 2019in Biological Journal of The Linnean Society 2.20
· DOI :10.1093/biolinnean/blz094
Elizaveta A. Boitsova1
Estimated H-index: 1
(SPbU: Saint Petersburg State University),
Pavel P. Skutschas13
Estimated H-index: 13
(SPbU: Saint Petersburg State University)
+ 3 AuthorsOlga A Masuytina
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Aurore Canoville11
Estimated H-index: 11
(UCT: University of Cape Town),
Anusuya Chinsamy28
Estimated H-index: 28
(UCT: University of Cape Town)
Numerous morphological studies have been carried out on pareiasaurs; yet their taxonomy and biology remain incompletely understood. Earlier works have suggested that these herbivorous parareptiles had a short juvenile period as compared to the duration of adulthood. Several studies further suggested an (semi-) aquatic lifestyle for these animals, but more recent investigations have proposed a rather terrestrial habitat. Bone paleohistology is regarded as a powerful tool to assess aspects of tetr...
Published on Dec 1, 2016in Annals of the New York Academy of Sciences 4.29
Markus Lambertz6
Estimated H-index: 6
(University of Bonn),
Christen D. Shelton3
Estimated H-index: 3
(University of Bonn)
+ 1 AuthorsSteven F. Perry24
Estimated H-index: 24
(University of Bonn)
The origin of the diaphragm remains a poorly understood yet crucial step in the evolution of terrestrial vertebrates, as this unique structure serves as the main respiratory motor for mammals. Here, we analyze the paleobiology and the respiratory apparatus of one of the oldest lineages of mammal-like reptiles: the Caseidae. Combining quantitative bone histology and functional morphological and physiological modeling approaches, we deduce a scenario in which an auxiliary ventilatory structure was...
Published on Dec 1, 2016in Integrative and Comparative Biology 3.10
Alexandra Houssaye18
Estimated H-index: 18
(CNRS: Centre national de la recherche scientifique),
P Martinsander32
Estimated H-index: 32
(University of Bonn),
Nicole Klein19
Estimated H-index: 19
(Staatliches Museum für Naturkunde Stuttgart)
Published on Aug 1, 2016in Zoological Journal of the Linnean Society 2.91
Michael J. Benton66
Estimated H-index: 66
(UoB: University of Bristol)
Pareiasaurs were important medium- to large-sized herbivores in the Middle and Late Permian, some 268–252 Ma. They are best known from abundant remains of several taxa found in South Africa and Russia, with isolated finds from other parts of the world. Six genera and species of pareiasaurs have been described from China, and yet they have not been reviewed. Of these six, Tsiyuania may be a synonym of Honania, but this taxon is not further considered here. The other four, which were named for sep...
Published on Jun 1, 2016in Palaeogeography, Palaeoclimatology, Palaeoecology 2.62
Cindy V. Looy24
Estimated H-index: 24
(University of California, Berkeley),
Stephanie L. Ranks1
Estimated H-index: 1
(University of California, Berkeley)
+ 7 AuthorsNeil J. Tabor26
Estimated H-index: 26
(SMU: Southern Methodist University)
Abstract Climate models indicate increased desertification in the continental interior of Pangea during the Permian, which would have affected the composition of the flora and fauna. We present a multi-proxy paleoenvironmental reconstruction of a terrestrial ecosystem in central Pangea of Lopingian age. The reconstruction is based on biological and physical data from the Moradi Formation, located in the Tim Mersoi sub-Basin, northern Niger. Paleosols and sedimentological evidence indicate that t...
Published on Feb 1, 2016in Biological Journal of The Linnean Society 2.20
Alexandra Houssaye18
Estimated H-index: 18
(CNRS: Centre national de la recherche scientifique),
Katja Waskow3
Estimated H-index: 3
(University of Bonn)
+ 3 AuthorsJohn Hutchinson35
Estimated H-index: 35
(RVC: Royal Veterinary College)
Graviportal taxa show an allometric increase of the cross-sectional area of supportive bones and are assumed to display microanatomical changes associated with an increase in bone mass. This evokes osteosclerosis (i.e. an increase in bone compactness observed in some aquatic amniotes). The present study investigates the changes in bones’ microanatomical organization associated with graviportality and how comparable they are with aquatically acquired osteosclerosis aiming to better understand the...
Published on Jan 1, 2016in Comptes Rendus Palevol 1.82
Kevin Padian16
Estimated H-index: 16
(University of California, Berkeley),
Sarah Werning7
Estimated H-index: 7
(SBU: Stony Brook University),
John R. Horner41
Estimated H-index: 41
(MSU: Montana State University)
We propose the hypothesis that in the long bones of large, rapidly growing animals, secondary osteons may form to a greater degree in smaller bones than in larger ones for reasons that may have more to do with the interplay between element-specific growth rates and whole-body metabolic rates than with mechanical or environmental factors. We predict that in many large animals with rapid growth trajectories and some disparity in size in the long bones and other skeletal elements, the largest bones...
Published on Jul 22, 2015
Michael O. Day9
Estimated H-index: 9
(University of the Witwatersrand),
Jahandar Ramezani26
Estimated H-index: 26
(MIT: Massachusetts Institute of Technology)
+ 4 AuthorsBruce S. Rubidge28
Estimated H-index: 28
(University of the Witwatersrand)
A mid-Permian (Guadalupian epoch) extinction event at approximately 260 Ma has been mooted for two decades. This is based primarily on invertebrate biostratigraphy of Guadalupian–Lopingian marine carbonate platforms in southern China, which are temporally constrained by correlation to the associated Emeishan Large Igneous Province (LIP). Despite attempts to identify a similar biodiversity crisis in the terrestrial realm, the low resolution of mid-Permian tetrapod biostratigraphy and a lack of ro...
Published on May 6, 2015in Biology Letters 3.32
Jun Liu12
Estimated H-index: 12
(CAS: Chinese Academy of Sciences),
G. S. Bever1
Estimated H-index: 1
(NYIT: New York Institute of Technology)
Diadectomorpha is a clade of Late Palaeozoic vertebrates widely recognized as the sister group of crown-group Amniota and the first tetrapod lineage to evolve high-fibre herbivory. Despite their evolutionary importance, diadectomorphs are restricted stratigraphically and geographically, with all records being from the Upper Carboniferous and Lower Permian of North America and Germany. We describe a new diadectomorph, Alveusdectes fenestralis, based on a partial skull from the Upper Permian of Ch...
Published on Aug 1, 2014in Biological Journal of The Linnean Society 2.20
Edina Prondvai8
Estimated H-index: 8
(ELTE: Eötvös Loránd University),
Koen Stein9
Estimated H-index: 9
(Museum für Naturkunde)
+ 1 AuthorsJorge Cubo20
Estimated H-index: 20
(University of Paris)
Research on the bone histology of extant and extinct animals has a long scientific history and an accurate description of microstructural tissues is the cornerstone of the field. Ideally, terminology needs to convey as much information as possible about the structural, developmental, and functional aspects of bone tissues corresponding to the up-to-date knowledge of the time. However, current terms are not always consistent with new observations and advances in the field of bone biology. We prov...
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