Results 141 to 150 of about 2,265 (195)

The jaw apparatuses of Cretaceous Phylloceratina (Ammonoidea)

Lethaia, 2013
Tanabe, K., Misaki, A., Landman, N.H. & Kato, T. 2013: The jaw apparatuses ofCretaceous Phylloceratina (Ammonoidea). Lethaia, Vol. 46, pp. 399–408.The jaw apparatuses of two species of Late Cretaceous Phylloceratina (Ammonoidea),Hypophylloceras subramosum and Phyllopachyceras ezoensis, are described on the basisof well-preserved in situ material from ...
Kazushige Tanabe   +2 more
exaly   +2 more sources

The Ammonoidea of the Upper Chalk. Part 1

Monograph of the Palaeontographical Society, 2019
A total of 34 species, assigned to 19 genera belonging to the suborders Phylloceratina, Lytoceratina and Ammonitina are described. One species is new.
exaly   +2 more sources

ÜBER DEN URSPRUNG DER AMMONOIDEA

Biological Reviews, 1966
exaly   +2 more sources

The Ammonoidea of the Lower Chalk Part 7

Monograph of the Palaeontographical Society, 2017
A S Gale
exaly   +2 more sources

Aptychi microstructure in Late Cretaceous Ancyloceratina (Ammonoidea)

Lethaia, 2009
The microstructure of aptychi (bivalved calcareous coverings on lower jaws) of three genera of Late Cretaceous Ancyloceratina, Baculites, Polyptychoceras and Jeletzkytes is described for the first time on the basis of well-preserved and in situ material from the Western Interior of the USA and Hokkaido, Japan.
Kruta, I.   +4 more
openaire   +2 more sources

An ecomorphospace for the Ammonoidea

Paleobiology, 2018
AbstractThe fossil conchs of ammonoids provide valuable information about the life habits of this extinct group. A new conch measurement, the apertural surface area (ASarea), is introduced here along with modeled sizes of the buccal mass and the hyponome, based on ratios of these organs in comparison with the aperture height from the RecentNautilus ...
Sonny A. Walton, Dieter Korn
openaire   +1 more source

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