Definition of Amphiaspidida. Meaning of Amphiaspidida. Synonyms of Amphiaspidida

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

Definition of Amphiaspidida

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Meaning of Amphiaspidida from wikipedia

- Amphiaspidida is a taxon of extinct cyathaspidid heterostracan agnathans whose fossils are restricted to Lower Devonian marine strata of Siberia near...
- three families, Cyathaspidae, Ctenaspidae, and Ariaspidae. The suborder Amphiaspidida, traditionally thought of as the daughter or sister-taxon of Ctenaspididae/Ctenaspidae...
- Nakaolinaspis？ Cyathaspidida Amphiaspidida...
- Nakaolinaspis？ Cyathaspidida Amphiaspidida...
- Nakaolinaspis？ Cyathaspidida Amphiaspidida...
- Nakaolinaspis？ Cyathaspidida Amphiaspidida...
- Nakaolinaspis？ Cyathaspidida Amphiaspidida...
- basal forms. Cyathaspidiformes is divided into two main subgroups: the Amphiaspidida of Early Devonian Siberia (i.e., Amphiaspis, Gabreyaspis, and Edaphaspis...
- Nakaolinaspis？ Cyathaspidida Amphiaspidida...
- cyathaspidiform heterostracan agnathans in the suborder Cyathaspidida. If Amphiaspidida can be ignored as a daughter-taxon, the family Ctenaspidae contains...