- Source: Coilopoceras
Coilopoceras is a compressed, involute, lenticular ammonitid from the Cretaceous (Albian to Turonian), with a narrow venter and raggedy ammonitic suture; type of the Coilopoceratidae, a family in the Acanthoceratoidea of the suborder Ammonitina.
Distribution
Coilopoceras has an established range from the upper Albian to Turonian in the Late Cretaceous. Its distribution is widespread, from western North America (Mexico, New Mexico, Texas) through northern Africa (Egypt, Cameroon, Niger, Nigeria and Tunisia) and Europe (France) to the Middle East (Israel), Madagascar and South America (Brazil, Peru and Colombia; La Frontera and San Rafael Formations).
References
= Bibliography
=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
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.
The Paleobiology Database - Coilopoceras entry accessed 2 December 2011