Clarkesvillia is a genus of Upper Ordovician westonocerids that differs from Faberoceras in having a more flattened venter and from the later Glyptodendron in having a more ventrally located siphuncle.
| Clarkesvillia Temporal range: U Ordovician
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | †Discosorida |
| Family: | †Westonoceratidae |
| Genus: | †Clarkesvillia Flower, 1946 |
References edit
- Teichert, C. 1964. Nautiloidea -Discosorida. Treatise on Invertebrate Paleontology Part K Teichert and Moore, eds.
- Clarkesvillia-Paleobiology DB
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