Reineckeia

{{Taxobox

| fossil_range = Middle Jurassic, {{Fossilrange|164.7|145.5}}[https://www.fossilworks.org The Paleobiology Database]

| image = Reineckeiidae - Reineckeia anceps.JPG

| image_caption = Fossil shell of Reineckeia anceps from Poitou (France), on display at Galerie de paléontologie et d'anatomie comparée in Paris

| regnum = Animalia

| phylum = Mollusca

| classis = Cephalopoda

| ordo = Ammonitida

| familia = Reineckeiidae

| genus = Reineckeia

| genus_authority = Bayle 1818

}}

Reineckeia is an extinct genus of ammonoid cephalopods belonging to the family Reineckeiidae.[http://www.helsinki.fi/~mhaaramo/metazoa/protostoma/mollusca/cephalopoda/ammonoidea/ammonitida.html Mikko's Phylogeny Archive]

These fast-moving nektonic carnivores lived during the Middle Jurassic period, from the Bathonian age to the Callovian age.Sepkoski, Jack [http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class Sepkoski's Online Genus Database – Cephalopoda]

Description

Shells of Reineckeia species can reach a diameter of about {{convert|38|cm}}.

Distribution

Fossils of species within this genus have been found in the Middle Jurassic Calabozo and Los Molles Formations of Argentina, Chile,{{citation needed|date=March 2017}} France, the Berching Formation of Germany, Portugal,{{cn|date=July 2020}} Chari Formation of India, Madagascar, Switzerland and United States{{cn|date=July 2020}}.[https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=15571 Reineckeia] at Fossilworks.org