Taxonomy
Genus: Manticoceras
Subfamily: Gephuroceratinae
Family: Gephuroceratidae
Superfamily: Gephuroceratoidea
Gephuroceratina with symmetric or almost symmetric lateral saddle. Supplementary external lobes only in connection with acute venter. Venter usually rounded, rarely acute, tabulate or concave..
Klug & Korn, 2002, Ammoneae Devonicae, Chapter 4
Suborder: Gephuroceratina
Agoniatitids with thinly discoidal to pachyconic conch, narrow to wide umbilicus, low whorl overlap, and moderately high to high whorl expansion rate. Basic sutural formula (E2 E1 E2) L L1, many modifications during phylogeny (development of external and umbilical lobes). Septa anticlastically folded; septal pillars parallel-arranged. Ornament usually with biconvex growth lines. Weak ribs and ventrolateral grooves often present in juveniles.
Klug & Korn, 2002, Ammoneae Devonicae, Chapter 4
Order: Agoniatitida
Ammonoids with ventral siphuncle. Conchs gyroconic, advolute, evolute or involute, thinly discoidal to pachyconic; umbilicus very wide to closed. Very low to very high whorl expansion rate. Umbilical window present in the oldest representatives. Basic sutural formula E [L], many modifications during phylogeny (subdivision of the external lobe, development of umbilical and internal lobes). Septa in early forms simple-domed without inflexions; derived forms with anticlastically folded septa. Ornament with convex, concavo-convex or biconvex growth lines, ribs present in many species..
Klug & Korn, 2002, Ammoneae Devonicae, Chapter 3
Stratigraphy
Period: Devonian
Stage: Frasnian
Locality
Country of origin: Morocco
Miscellaneous
Collection number: 393
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