Ascocerida
Extinct order of molluscs / From Wikipedia, the free encyclopedia
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The Ascocerida are comparatively small, bizarre Orthoceratoids known only from Ordovician and Silurian sediments in Europe and North America, uniquely characterized by a deciduous conch consisting of a longer juvenile portion and an inflated short adult portion that separate sometime in maturity.[1]
Quick Facts Scientific classification ...
Ascocerida | |
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The ontogeny of Ascoceras, an Ascoceridian | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Orthoceratoidea |
Order: | †Ascocerida Kuhn, 1949 |
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