Aphantites
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''Aphantites'' is a Lower Pennsylvanian
ammonite Ammonoids are extinct, (typically) coiled-shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which comprise the clade Coleoidea) than they are to nautiluses (family N ...
belonging to the goniatitid family
Reticuloceratidae Reticuloceratidae is one of five Family (biology), families of the Gastrioceratoidea superfamily. They are an extinction, extinct group of ammonite, ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish, ...
which are characterized by involute subdiscoidal shells covered by linear or biconvex growth lines that may be crossed by longitudinal lirae, producing a reticulate pattern. Sutures are simple, the ventral lobe double pronged. Related genera include '' Surenites'' and '' Reticuloceras''.


References

*''Aphantites'' in Paleobiology Database, Surenitina

8/2/10 * Goniat online

Reticuloceratidae 8/2/10 Goniatitida genera Reticuloceratidae Pennsylvanian ammonites {{Goniatitida-stub