Neoptychites

{{Taxobox

| name = Neoptychites

| fossil_range = Turonian
~{{fossil range|94.3|89.3}}

| image =

| regnum = Animalia

| phylum = Mollusca

| classis = Cephalopoda

| subclassis = Ammonoidea

| ordo = Ammonitida

| superfamilia =

| familia = Vascoceratidae

| genus = Neoptychites

| genus_authority = Kossmat, 1895

| subdivision_ranks = Species

| subdivision_ref =

| subdivision =

N. (Neoptychites)
N. cephalotus
N. crassus
N. telinga
N. transitorius
N. xetriformis

}}

Neoptychites is an extinct ammonoid cephalopod genus from the Turonian stage of the Upper Cretaceous (around 94 to 89 Ma), with a worldwide distribution.{{cite web |last=Sepkoski |first=Jack |title=Sepkoski's Online Genus Database |year=2002 |url=http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class |accessdate=2014-05-28}}

Description

Neoptychites includes extremely involute Ammonitida whose outer whorls have a high triangular section with a moderately rounded venter (the outer rim). Tho body chamber in adults is generally smooth, with a constricted aperture. The earliest whorls are smooth except for periodic constrictions; later juvenile whorls have numerous low ribs without tubercles.

Taxonomy

Neoptychites belongs to the ammonite family Vascoceratidae and is included in the subfamily Vasoceratinae. The genus was named by Kossmat in 1895. Its type species is Ammonites telinga Stoliczka, 1865 (= Ammonites cephalotus Courtiller, 1860). It is probably derived from Paravascoceras.

Distribution

Fossils of Neoptychites have been found in Austria, Brazil, Cameroon, Colombia (La Frontera (Huila, Cundinamarca, Boyacá) and Loma Gorda Formations, Aipe, Huila),Patarroyo, 2016, p.41Patarroyo, 2011, p.69 Egypt, France, India, Jordan, Mexico, Morocco, Niger, Nigeria, Romania, Tunisia, United States (Arizona, Colorado, New Mexico, Texas), and Venezuela.[https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=15250 Neoptychites] at Fossilworks.org

References

= Bibliography =

{{citation |last=Patarroyo |first=Pedro |year=2016 |title=Amonoideos y otros macrofósiles del lectoestratotipo de la Formación la Frontera, Turoniano inferior - medio (Cretácico Superior) en San Francisco, Cundinamarca (Colombia) |url=http://www.scielo.org.co/pdf/boge/v38n3/v38n3a03.pdf |journal=Boletín de Geología, Universidad Industrial de Santander |volume=38 |pages=41–54 |accessdate=2017-04-04}}
{{citation |last=Patarroyo |first=Pedro |year=2011 |title=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) |url=http://www.scielo.org.co/pdf/boge/v33n1/v33n1a06.pdf |journal=Boletín de Geología, Universidad Nacional de Colombia |volume=33 |pages=69–92 |accessdate=2017-03-30}}