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Hoplitoides

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

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

Distribution

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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

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

Bibliography

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  • Patarroyo, Pedro (2016), "Amonoideos y otros macrofósiles del lectoestratotipo de la Formación la Frontera, Turoniano inferior - medio (Cretácico Superior) en San Francisco, Cundinamarca (Colombia)" (PDF), Boletín de Geología, Universidad Industrial de Santander, 38: 41–54, retrieved 2017-04-04
  • Patarroyo, Pedro (2011), "Sucesión de Amonitas del Cretácico Superior (Cenomaniano-Coniaciano) de la parte más alta de la Formación Hondita y de la Formación Loma Gorda en la Quebrada Bambucá, Aipe - Huila (Colombia)" (PDF), Boletín de Geología, Universidad Nacional de Colombia, 33: 69–92, retrieved 2017-03-30
  • Patarroyo, Pedro; Rojas, Alexis (2007), "La sucesión y la fauna del Turoniano de la Formación San Rafael en Pesca y su comparación con la sección tipo en Samacá (Boyacá-Colombia-S.A.)" (PDF), Geología Colombiana, Universidad Nacional de Colombia, 32: 89–96, archived from the original (PDF) on 2017-04-19, retrieved 2017-04-05

Further reading

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