Trimerellida Temporal range:
| |
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Dinobolus davidsoni, a trimerellid from the Silurian of Estonia | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Brachiopoda |
Class: | Craniata |
Order: | †Trimerellida Gorjansky & Popov, 1985 |
Superfamily: | †Trimerelloidea Davidson & King, 1872 |
Families | |
See text. |
Trimerellida is an extinct order of craniate brachiopods, containing the sole superfamily Trimerelloidea and the families Adensuidae, Trimerellidae, and Ussuniidae. Trimerellidae was a widespread family of warm-water brachiopods ranging from the Middle Ordovician ("Llandeilo" / Darriwilian) to the late Silurian (Ludlow). Adensuidae and Ussuniidae are monogeneric families restricted to the Ordovician of Kazakhstan.[2] Most individuals were free-living, though some (namely Australian populations of the genus Eodinobolus) clustered into large congregations similar to modern oyster reefs.[2][3]