Trochonema
From Wikipedia, the free encyclopedia
| Trochonema Temporal range: | |
|---|---|
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| Trochonema sp. from the middle Ordovician of the Galena Limestone of Minnesota | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Family: | †Trochonematidae |
| Genus: | †Trochonema Salter, 1859 |
Trochonema is an extinct genus of early marine snail from the Paleozoic, which lasted almost 215 million years.[1] It was first described by John William Salter in 1859.[2] Like many genera in the order Murchisoniina, the relationship between it and other large gastropod clades is uncertain.
