Definition of Riocerida. Meaning of Riocerida. Synonyms of Riocerida

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

Definition of Riocerida

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Meaning of Riocerida from wikipedia

- Riocerida, originally named as Rioceratida, is an extinct order of Ordovician nautiloid cephalopods. They were the earliest-diverging members of the major...
- calcitic inner layer. Currently, Orthoceratoidea comprises the orders Riocerida, Dissidocerida, Actinocerida, Pseudorthocerida, Lituitida and Orthocerida...
- Riocerida (possibly paraphyletic to later orthoceratoids)...
- Eukaryota Kingdom: Animalia Phylum: Mollusca class: Cephalopoda Order: †Riocerida Family: †Bactroceratidae King & Evans, 2019 Genus: †Bactroceras Holm,...