Litoceras

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Litoceras
Temporal range: Early Ordovician–Middle Ordovician
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Nautiloidea
Order:
Tarphycerida
Family:
Trocholitidae
Genus:
Litoceras

Billings, 1865

Litoceras is a trocholitid (Tarphycerida) genus that has been found in the Lower and Middle Ordovician of Newfoundland. Whorls in Litoceras have a broadly[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[clarification needed] being dorsal and in the center.

Species[]

Species within the genera Litoceras include:[1]

  • Billings, 1865[2]
  • Billings, 1865[3]
  • Hyatt, 1894[4]

References[]

  1. ^ "Paleobiology Database: Litoceras". Paleodb.org. Retrieved 20 August 2013.
  2. ^ "Paleobiology Database: Litoceras calciferum". Paleodb.org. Retrieved 20 August 2013.
  3. ^ "Paleobiology Database: Litoceras versutum". Paleodb.org. Retrieved 20 August 2013.
  4. ^ "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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