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Another Lesson From Beautiful Monsters: the Case of 'sex Reversals' in the Ammonoidea and Their Significance

2021-02-02

Abstract excerpt

<h4>Background: </h4> Expression of a sexual dimorphism is recognised in various fossil groups of molluscs such as the Ammonoidea, an extinct group of shelled cephalopods. During the Mesozoic, the best documented sexual dimorphic examples are seen in the Jurassic superfamily Perisphinctoidea. It is most usually expressed by distinct adult size and apertural modifications between the antidimorphs. Putative males (o...

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Literature Corpus work: 4ef9cf2d-1cf8-51b3-a4e0-4efbe2e1dfe9
DOI: 10.21203/rs.3.rs-157754/v1

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