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New gliding mammaliaforms from the Jurassic.
Nature. 2017 08 17; 548(7667):291-296.Nat

Abstract

Stem mammaliaforms are Mesozoic forerunners to mammals, and they offer critical evidence for the anatomical evolution and ecological diversification during the earliest mammalian history. Two new eleutherodonts from the Late Jurassic period have skin membranes and skeletal features that are adapted for gliding. Characteristics of their digits provide evidence of roosting behaviour, as in dermopterans and bats, and their feet have a calcaneal calcar to support the uropagatium as in bats. The new volant taxa are phylogenetically nested with arboreal eleutherodonts. Together, they show an evolutionary experimentation similar to the iterative evolutions of gliders within arboreal groups of marsupial and placental mammals. However, gliding eleutherodonts possess rigid interclavicle-clavicle structures, convergent to the avian furculum, and they retain shoulder girdle plesiomorphies of mammaliaforms and monotremes. Forelimb mobility required by gliding occurs at the acromion-clavicle and glenohumeral joints, is different from and convergent to the shoulder mobility at the pivotal clavicle-sternal joint in marsupial and placental gliders.

Authors+Show Affiliations

Beijing Museum of Natural History, Beijing 100050, China.Committee on Evolutionary Biology, The University of Chicago, Chicago, Illinois 60637, USA.Beijing Museum of Natural History, Beijing 100050, China.Beijing Museum of Natural History, Beijing 100050, China.Department of Organismal Biology and Anatomy, The University of Chicago, Chicago, Illinois 60637, USA.Hebei GEO University, Shijiazhuang 050031, Hebei Province, China.Committee on Evolutionary Biology, The University of Chicago, Chicago, Illinois 60637, USA. Department of Organismal Biology and Anatomy, The University of Chicago, Chicago, Illinois 60637, USA.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

28792929

Citation

Meng, Qing-Jin, et al. "New Gliding Mammaliaforms From the Jurassic." Nature, vol. 548, no. 7667, 2017, pp. 291-296.
Meng QJ, Grossnickle DM, Liu D, et al. New gliding mammaliaforms from the Jurassic. Nature. 2017;548(7667):291-296.
Meng, Q. J., Grossnickle, D. M., Liu, D., Zhang, Y. G., Neander, A. I., Ji, Q., & Luo, Z. X. (2017). New gliding mammaliaforms from the Jurassic. Nature, 548(7667), 291-296. https://doi.org/10.1038/nature23476
Meng QJ, et al. New Gliding Mammaliaforms From the Jurassic. Nature. 2017 08 17;548(7667):291-296. PubMed PMID: 28792929.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - New gliding mammaliaforms from the Jurassic. AU - Meng,Qing-Jin, AU - Grossnickle,David M, AU - Liu,Di, AU - Zhang,Yu-Guang, AU - Neander,April I, AU - Ji,Qiang, AU - Luo,Zhe-Xi, Y1 - 2017/08/09/ PY - 2016/10/23/received PY - 2017/07/12/accepted PY - 2017/8/10/pubmed PY - 2018/1/23/medline PY - 2017/8/10/entrez SP - 291 EP - 296 JF - Nature JO - Nature VL - 548 IS - 7667 N2 - Stem mammaliaforms are Mesozoic forerunners to mammals, and they offer critical evidence for the anatomical evolution and ecological diversification during the earliest mammalian history. Two new eleutherodonts from the Late Jurassic period have skin membranes and skeletal features that are adapted for gliding. Characteristics of their digits provide evidence of roosting behaviour, as in dermopterans and bats, and their feet have a calcaneal calcar to support the uropagatium as in bats. The new volant taxa are phylogenetically nested with arboreal eleutherodonts. Together, they show an evolutionary experimentation similar to the iterative evolutions of gliders within arboreal groups of marsupial and placental mammals. However, gliding eleutherodonts possess rigid interclavicle-clavicle structures, convergent to the avian furculum, and they retain shoulder girdle plesiomorphies of mammaliaforms and monotremes. Forelimb mobility required by gliding occurs at the acromion-clavicle and glenohumeral joints, is different from and convergent to the shoulder mobility at the pivotal clavicle-sternal joint in marsupial and placental gliders. SN - 1476-4687 UR - https://www.unboundmedicine.com/medline/citation/28792929/New_gliding_mammaliaforms_from_the_Jurassic_ L2 - https://doi.org/10.1038/nature23476 DB - PRIME DP - Unbound Medicine ER -