Astieridiscus
Sign in to saveAstieridiscus is an extinct lower Cretaceous ammonite. Its shell evolute, covered by dense, simple or branching, slightly flexuous ribs. The sides are slightly flattened, the venter rounded. No umbilical or other tubercles except on innermost whorl. Superficially resembles Olcostephanus.
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Astieridiscus is an extinct lower Cretaceous ammonite. Its shell evolute, covered by dense, simple or branching, slightly flexuous ribs. The sides are slightly flattened, the venter rounded. No umbilical or other tubercles except on innermost whorl. Superficially resembles Olcostephanus.
==Notes==
Connections
Animalia
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Mollusca
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Wikidata
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taxonomy
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Jurassic
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Cretaceous
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Triassic
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Cambrian
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Devonian
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Cephalopod
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Permian
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Silurian
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Carboniferous
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Ordovician
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Internet Archive
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Precambrian
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Neogene
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Paleogene
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Ammonoidea
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Razgrad
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