''Codazziceras'' is an early
Late Cretaceous
The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the ...
ammonite from the Late Cretaceous of Colombia, distinguished from ''
Lyelliceras'' (
Lyelliceratidae
Lyelliceratidae is a family of ammonites belonging to the superfamily Acanthoceratoidea
Acanthoceratoidea, formerly Acanthocerataceae, is a superfamily of Upper Cretaceous ammonoid cephalopods belonging to the order Ammonitida, and comprising ...
) from which it is based and added to the
Euomphaloceratinae
Euomphaloceratinae is a subfamily of Upper Cretaceous ammonites included in the Acanthoceratidae, characterized by generally evolute shells with quadrate whorl sections that are strongly ribbed. Sutures are ammonitic, but not overly complex.
Gen ...
(Acanthoceratidae). The
type species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...
is ''Codazziceras scheibei'' and another described species is ''C. ospinae''.
[''Codazziceras'']
at Fossilworks
Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database
The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ...
.org Fossils
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in ...
of ''Codazziceras'' have been found in the
La Frontera Formation
The La Frontera Formation ( es, Formación La Frontera, K2F, Ksf) is a geological formation, part of the Villeta Group, of the Altiplano Cundiboyacense and neighbouring areas of the Eastern Ranges of the Colombian Andes. The sequence of limestones ...
of Huila,
Cundinamarca and
Boyacá, and in the
Loma Gorda Formation of
Aipe,
Huila.
[Patarroyo, 2016, p.41][Patarroyo, 2011, p.69]
Etymology
The genus is named after Italian-Colombian geographer
Agustín Codazzi
Giovanni Battista Agostino Codazzi (alternatively known in Latin America as Agustín Codazzi; 12 July 1793 – 7 February 1859) was an Italo-Venezuelan soldier, scientist, geographer, cartographer, and governor of Barinas (1846–1847 ...
.
Description
The shell is rather evolute, ornamented with ribs and clavate tubercles. Ribs are fairly strong on the flanks but weaken as they cross the venter. Whorl section is compressed, moderately embracing, flanks convex, venter moderately flattened with three rows of tubercles that tend to be elongate in the direction of coiling.
References
Bibliography
*
*
Further reading
* F. Etayo Serna, 1979. Zonation of the Cretaceous of central Colombia by ammonites. Publicaciones Geologicas Especiales del Ingeominas 2:1-188
Ammonitida genera
Acanthoceratidae
Cretaceous ammonites
Ammonites of South America
Cretaceous Colombia
Altiplano Cundiboyacense
Fossil taxa described in 1979
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