Eriptychiida
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| Eriptychiida Temporal range: Ordovician |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Pteraspida |
| Subclass: | Heterostraci |
| Order: | Eriptychiida |
Eriptychiida are an extinct marine taxon of vertebrate in the group Pteraspidomorphi. The Eriptychiida contain only one genus, the Eriptychius, and fossilized specimens from this genus have been found in North America. The group contains only two documented species: Eriptychius americanus and Eriptychius orvigi.
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