Adaptations to squid-style high-speed swimming in Jurassic belemnitids.
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ABSTRACT:
SUBMITTER: Klug C
PROVIDER: S-EPMC4785926 | biostudies-literature | 2016 Jan
REPOSITORIES: biostudies-literature
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Adaptations to squid-style high-speed swimming in Jurassic belemnitids.
Klug Christian C Schweigert Günter G Fuchs Dirk D Kruta Isabelle I Tischlinger Helmut H
Biology letters 20160101 1
Although the calcitic hard parts of belemnites (extinct Coleoidea) are very abundant fossils, their soft parts are hardly known and their mode of life is debated. New fossils of the Jurassic belemnitid Acanthoteuthis provided supplementary anatomical data on the fins, nuchal cartilage, collar complex, statoliths, hyponome and radula. These data yielded evidence of their pelagic habitat, their nektonic habit and high swimming velocities. The new morphological characters were included in a cladist ...[more]
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