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Article: The affinities of Idiohamites ellipticoides Spath (Cretaceous Ammonoidea)

Publication: Palaeontology
Volume: 15
Part: 3
Publication Date: September 1972
Page(s): 400 404
Author(s): W. J. Kennedy
DOI:
Addition Information

How to Cite

KENNEDY, W. J. 1972. The affinities of Idiohamites ellipticoides Spath (Cretaceous Ammonoidea). Palaeontology15, 3, 400–404.

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Abstract

Idiohamites ellipticoides Spath is an aberrant species of the genus Idiohamites which shows the recoiling trend so widespread in Cretaceous heteromorph ammonites. Its ornament is identical with some members of the largely southern hemisphere family Labeceratidae, but study of suture lines show this to be merely a case of homeomorphy. The species is described and illustrated on the basis of large new collections.
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