Orthotheca
| Orthotheca Temporal range: Early Cambrian–Early Devonian[1] | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | incertae sedis |
| Class: | †Hyolitha |
| Order: | †Orthothecida |
| Family: | †Orthothecidae Sysoev, 1958 |
| Genus: | †Orthotheca Novák, 1886 |
| Species | |
Others, please add... | |
Orthotheca is a genus of sessile bottom-dwelling hyolith.[1]
References
- 1 2 Malinky, J. M. (2009). "First Occurrence of Orthotheca Novák, 1886 (Hyolitha, Early Devonian) in North America". Journal of Paleontology. 83: 588–596. doi:10.1666/08-164R.1.
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