Archaeostraca
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| Archaeostraca Temporal range: | |
|---|---|
 | |
| Nahecaris stuertzi | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Subclass: | Phyllocarida |
| Order: | †Archaeostraca Claus, 1888[1] |
| Suborders[1] | |
Archaeostraca is an extinct order of crustaceans in the subclass Phyllocarida.[1] It first appeared in the Late Cambrian and became very diverse in both the Late Silurian and the Devonian.[2]
