Menuites
Encyclopedia
Menuites is a rather small offshoot of Anapachydiscus
with a fairly widespread distribution from the Upper Cretaceous Santonian and Campanian stages.
The inner whorls of this pachydiscid have fine, straight or slightly curved, radial, ribs, characteristic of Anapachydiscus. The long body, or living, chamber is with prominent rounded umbilical tubercles and ventrolateral tubercles set on irregular, wide-spaced, rounded ribs.
Anapachydiscus
Anapachydiscus is an extinct cephalopod genus from the Upper Cretaceous, Coniacian - Maastrichtian of Europe, Africa, Madagascar, S.India, N Z, Calif. Mexico, Argentina, and the antarctic belonging to the ammonoid family Pachydiscidae....
with a fairly widespread distribution from the Upper Cretaceous Santonian and Campanian stages.
The inner whorls of this pachydiscid have fine, straight or slightly curved, radial, ribs, characteristic of Anapachydiscus. The long body, or living, chamber is with prominent rounded umbilical tubercles and ventrolateral tubercles set on irregular, wide-spaced, rounded ribs.