Definition of Plectronoceratoids. Meaning of Plectronoceratoids. Synonyms of Plectronoceratoids

Here you will find one or more explanations in English for the word Plectronoceratoids. Also in the bottom left of the page several parts of wikipedia pages related to the word Plectronoceratoids and, of course, Plectronoceratoids synonyms and on the right images related to the word Plectronoceratoids.

Definition of Plectronoceratoids

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Meaning of Plectronoceratoids from wikipedia

- Paleozoic, though their indirect descendants survive to the present. Plectronoceratoids are generally small to tiny forms with orthoconic or endogastric s****...
- Shangtungendoceras is a conical plectronoceratoid cephalopod from the Upper Cambrian of north-eastern China, described by Sun (1937) as a primitive endoceroid...
- Late Cambrian (early and middle Trempealeauan) to the other three plectronoceratoid orders, the Ellesmerocerida and Protactinocerida and Yanhecerida....