Protowenella
Extinct genus of hyolith
From Wikipedia, the free encyclopedia
Protowenella is a genus of hyolith from the Middle Cambrian of Australia and Greenland, previously thought to be a helcionelloid.[1] It has a strongly spiralled, smooth shell with concentric ridges that have low relief. Other than its tighter coiling, it closely resembles Tichkaella.[2]
| Protowenella Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Class: | †Hyolitha |
| Order: | †Orthothecida |
| Genus: | †Protowenella |
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