Litoceras
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Litoceras is a trocholitid (Tarphycerida) genus that has been found in the Lower and Middle Ordovician of Newfoundland. Whorls in Litoceras have a broadly[<span title="Script error: No such module "decodeEncode".">clarification needed] rounded cross section with its width greater than its height. Litoceras somewhat resembles the tarphyceratid Pionoceras from the same time, except for the siphuncle[<span title="Script error: No such module "decodeEncode".">clarification needed] being dorsal and in the center.
Species
Species within the genera Litoceras include:[1]
- Litoceras calciferum (Billings, 1865)[2]
- Litoceras versutum (Billings, 1865)[3]
- Litoceras whiteavsi Hyatt, 1894[4]
References
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- ^ Page Module:Citation/CS1/styles.css has no content."Paleobiology Database: Litoceras". Paleodb.org. Retrieved 20 August 2013.
- ^ Page Module:Citation/CS1/styles.css has no content."Paleobiology Database: Litoceras calciferum". Paleodb.org. Retrieved 20 August 2013.
- ^ Page Module:Citation/CS1/styles.css has no content."Paleobiology Database: Litoceras versutum". Paleodb.org. Retrieved 20 August 2013.
- ^ Page Module:Citation/CS1/styles.css has no content."Paleobiology Database: Litoceras whiteavsi". Paleodb.org. Retrieved 20 August 2013.
- Furnish, W.M and Glenister, Brian F (1964); Nautiloidea -Tarphycerida in the Treatise on Invertebrate Paleontology, Part L, Nautiloidea, Geological Society of America and Univ of Kansas press.
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