Hemihoplites is an extinct genus of ammonoid cephalopods belonging to the family Hemihoplitidae.[2] These fast-moving nektonic carnivores[1] lived in the Cretaceous period, from the Hauterivian age to the Barremian age.[3]
Description
It is evolute, compressed. The Whorl section is rectangular. The ribs are simple or branching or long or short, well spaced, straight or slightly flexuous, crossing flat venter transversely, typically with distinct umbilical and ventrolateral tubercles.[2]
Species
- Hemihoplites feraudianus (d'Orbigny, 1841)
- Hemihoplites mexicanus Imlay, 1940
- Hemihoplites ploszkiewiczi Riccardi and Aguirre Urreta, 1989
- Hemihoplites soulieri (Matheron, 1878)
- Hemihoplites varicostatus Riccardi and Aguirre Urreta, 1989
Distribution
Fossils of species within this genus have been found in the Cretaceous rocks of Antarctida (Alexander Island), Bulgaria, southeastern France, Mexico, Slovakia, South Africa and Trinidad and Tobago.[1]
References
- ^ a b c "Hemihoplites". fossilworks.
- ^ a b Wright, C. W. with Callomon, J.H. and Howarth, M.K. (1996), Mollusca 4 Revised , Cretaceous Ammonoidea, vol. 4, in Treatise on Invertebrate Paleontology, Part L (Roger L. Kaesler et el. eds.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, pp. 228, 231.
- ^ Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda
External links
- "Hemihoplites". mindat.org. Retrieved 15 June 2022.
- Wright, Claud William; with John Hannes Callomon and M.K. Howarth (1996). Roger L. Kaesler (ed.). Mollusca 4 Revised, Cretaceous Ammonoidea in Treatise on Invertebrate Paleontology Part L. Boulder, Colorado and Lawrence, Kansas: The Geological Society of America & University of Kansas Press. p. 228.
{{cite book}}: CS1 maint: multiple names: authors list (link)