Trochonema
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| Trochonema Temporal range:
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| Trochonema sp. from the middle Ordovician of the Galena Limestone of Minnesota | |
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| Genus: | Trochonema Salter, 1859
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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.
References
- ^ "Trochonematidae". Ordovician atlas of ancient life. 7 January 2014. Retrieved July 14, 2022.
- ^ Billings, E.; Hall, James; Jones, T. Rupert; Salter, John William; Thompson, John Vaughan; Canada, Geological Survey of (1858). Figures and descriptions of Canadian organic remains. Montreal: Printed by J. Lovell.
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