Maisey, John G.
[Author];
Miller, Randall F. (Randall Francis), 1956-
[Author];
Pradel, Alan.
[Author];
Denton, John S. S.
[Author];
Bronson, Allison.
[Author];
Janvier, Philippe.
[Author]
Pectoral morphology in Doliodus : bridging the 'acanthodian'-chondrichthyan divide. (American Museum novitates, no. 3875)
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Media type:
Electronic Resource
Title:
Pectoral morphology in Doliodus : bridging the 'acanthodian'-chondrichthyan divide. (American Museum novitates, no. 3875)
Contributor:
Maisey, John G.
[Author];
Miller, Randall F. (Randall Francis), 1956-
[Author];
Pradel, Alan.
[Author];
Denton, John S. S.
[Author];
Bronson, Allison.
[Author];
Janvier, Philippe.
[Author]
imprint:
American Museum of Natural History., 2017-03-10
Footnote:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Description:
15 pages : illustrations (some color) ; 26 cm. ; Doliodus problematicus (NBMG 10127), from the Lower Devonian of New Brunswick, Canada (approx. 397-400 Mya) is the earliest sharklike jawed vertebrate (gnathostome) in which the pectoral girdle and fins are well preserved. Its pectoral endoskeleton included sharklike expanded paired coracoids, but Doliodus also possessed an "acanthodian-like" array of dermal spines, described here for the first time. Doliodus provides the strongest anatomical evidence to date that chondrichthyans arose from "acanthodian" fishes by exhibiting an anatomical mosaic of "acanthodian" and sharklike features.