Kepplerites [SEP] parent taxon
Kepplerites
Kepplerites is a moderately evolute ammonite from the lower Callovian (upper Middle Jurassic) included in the Stephanoceratoidea.
Inner whorls are finely ribbed and have a flattened or grooved venter, the outer whorl has a rounded venter with smooth ribs that cross from side to side without interruption.
"Kepplerites" is assigned to the Kosmoceratidae and to the subfamily Keppleritinae. "Gulielmina" and "Seymourites" are closely related genera, sometimes regarded as subgenera of "Kepplerites.
"Kepplerites" was named by Neumayr and Uhlig
Taxon in disguise
In bacteriology, a taxon in disguise is a species, genus or higher unit of biological classification whose evolutionary history reveals has evolved from another unit of similar or lower rank, making the parent unit paraphyletic. This happens when rapid evolution makes a new species appear radically different from the ancestral group, so that it is not (initially) recognised as belonging to the parent phylogenetic group, leaving the latter an evolutionary grade.
While the term is from bacteriology, parallel examples are found throughout the tree of