Adrianitidae [SEP] parent taxon
Adrianitidae
Adrianitidae is a family in the Adrianitaceae, a superfamily of ammonites in the cephalopod order, Goniatitida, known from the Middle Pennsylvanian to the Middle Permian.
Members of the Adrianitidae, named by Schindewolf in 1931, and of the Adrianitaceae, have shells (conchs) that are discoidal to globular with umbilici that vary in form, and sutures with 10 to 30, more or less equal, lobes.
The Adrianitinae which come from the Lower and Middle Permian have sutures that form 14 to 30 lobes. Genera
Emilitinae
Emilitinae is a subfamily based on the genus "Emilites", proposed by Leonova and Bogoslovskaya, 1990, for the most primitive members of the Adrianitidae, but no longer generally recognized as an independent taxon. "Emilites" and the other genera listed in the Emilitinae have been reassigned to the Adrianitinae where they were previously found.
These are part of an extinct group of shelled cephalopods known as ammonoids, which are more closely related to squids, belemnites, octopuses, and cuttlefish than to the nautiloids from which they