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Hoplitoides

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Hoplitoides
Temporal range: Turonian–Coniacian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Family: Coilopoceratidae
Genus: Hoplitoides
von Koenen, 1898
Species
  • See text

Hoplitoides is an ammonite from the Upper Cretaceous, Turonian belonging to the Coilopoceratidae, a family in the Acanthoceratoidea. Hoplitoides have early whorls which are grooved, then flat, and finally narrowly rounded venters; early stages with umbilical tubercles and space ribs, later stages becoming smooth. The suture is similar to that of Coilopoceras but less extreme. Hoplitoides has an established distribution which is widespread, from western North America, northwestern Africa and northern South America.

Species include:

  • H. gibbulosus
  • H. ingens
  • H. koeneni
  • H. latesellatus (type species)
  • H. mirabilis
  • H. sandovalensis
  • H. wohltmanni

References

  • Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.
  • The Paleobiology Database - Hoplitoides entry accessed 2 December 2011