Monomorphichnus
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| Monomorphichnus Temporal range: | |
|---|---|
Trace fossil classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita (?) |
| Ichnogenus: | †Monomorphichnus Crimes 1970[1] |
Monomorphichnus is an arthropod trace fossil known from the base of the Cambrian period onwards, before the first trilobite fossils.[2]
