Bactrotheca is an extinct genus of orthothecid hyolith with a bulbous "protoconch".[1]
| Bactrotheca | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Superphylum: | Lophotrochozoa |
| Class: | †Hyolitha |
| Order: | †Orthothecida |
| Family: | †Orthothecidae |
| Genus: | †Bactrotheca |
References edit
- ^ DZIK, J. 1980. Ontogeny of Bactrotheca and related hyoliths. GFF, 102, 223–233.
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