Lambdakalkyli
Lambdakalkyli is a genus of extinct ammonites, a type of cephalopod, that lived during the Cretaceous period. The name Lambdakalkyli is derived from the Greek word "λᾰμβδα" (lambda) meaning "lambdoid" and the word "Calkylius", a referencing one of the earliest described ammonites.
Lambdakalkyli fossils have been found in the Upper Cretaceous rock formations of North America and Eastern
Phylogenetic analysis suggests that Lambdakalkyli belongs to the family Neophyllitidae, a group of advanced, coiled ammonites.
The study of extinct ammonites, including Lambdakalkyli, contributes to our understanding of Cretaceous marine ecosystems and