The Origin of the Primitive Tetrapod Limb

Arhipidistian paired fin, made to assume the position of a primitive tetrapod limb, would suffer certain modifications which throw light on the origin of the latter and on the homology of its elements. The new theory here stated , and that of Gregory and Raven (from which it differs in several point...

Full description

Saved in:
Bibliographic Details
Published in:Proceedings of the Royal Society of London. Series B, Biological sciences Biological sciences, 1943-11, Vol.131 (865), p.373-393
Main Author: Westoll, Thomas Stanley
Format: Article
Language:English
Subjects:
Animal fins
Carpus
Flexors
Humerus
Innervation
Pectorals
Ravens
Skeleton
Tarsus
Ulna
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Arhipidistian paired fin, made to assume the position of a primitive tetrapod limb, would suffer certain modifications which throw light on the origin of the latter and on the homology of its elements. The new theory here stated , and that of Gregory and Raven (from which it differs in several points), are radically different from all hitherto proposed. The proto -tetrapod pectoral and pelvic fins were of similar structure. Each consisted of five axial mesomeres, each bearing distally a simple preaxial radial and an actual or potential postaxial process; a rudimentary sixth mesomere may have been present.
ISSN:0962-8452
0080-4649
2053-9193
1471-2954
2053-9193
DOI:10.1098/rspb.1943.0013