Hoplitoides

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.

Hoplitoides
Temporal range: Turonian
~94–89 Ma
↓
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Family: †Coilopoceratidae
Genus: †Hoplitoides
von Koenen, 1898
Type species
H. latesellatus
Species

See text

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

Distribution

Fossils of Hoplitoides have been found in Brazil, Cameroon, Colombia (La Frontera, Huila, Cundinamarca and Boyacá, Loma Gorda, Aipe, Huila and San Rafael Formations),[1][2][3] Mexico, Nigeria, Peru, Trinidad and Tobago, Tunisia, United States (New Mexico), and Venezuela.[4]

References
  1. Patarroyo, 2016, p.41
  2. Patarroyo, 2011, p.69
  3. Patarroyo & Rojas, 2007, pp.92-93
  4. Hoplitoides at Fossilworks.org

Bibliography

Further reading
  • 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.
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