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Class: Trilobita
| Order | Family | Common | count |
|---|---|---|---|
| Ptychopariida | Alokistocaridae |
1 | |
| Ptychopariida | Asaphiscidae |
1 |
Formation: Wheeler Shale
zUtah County | UD-25
Formation: Wheeler Shale
zUtah County | UD-569
