Title
Pectoral morphology in Doliodus : bridging the 'acanthodian'-chondrichthyan divide
Related Titles
Series:
American Museum novitates, number 3875
By
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
Type
Book
Material
Published material
Publication info
New York, NY American Museum of Natural History [2017]
Notes
Caption title.
"March 10, 2017."
Local PDF available in high- and low-resolution versions.
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.
Subjects
Chondrichthyes
,
Chondrichthyes, Fossil
,
Devonian
,
Doliodus problematicus
,
Evolution
,
Fishes
,
Fishes, Fossil
,
New Brunswick
,
Paleontology
,
Phylogeny
,
Shoulder girdle
,
Spines (Zoology)
Call Number
QL1 .A436 no.3875 2017
Language
English
Identifiers
DOI:
https://doi.org/10.1206/3875.1
OCLC:
974929983
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