Diagnoza

Thinly pachyconic juvenile shell, then thickly discoidal  umbilicus funnel-shaped and almost closed in all stages; suture line with secondarily subdivided external lobe, of which the dorsal side shows tertiary denticulation, and primarily subdivided adventive lobe.

Porównanie

M. hodsoni belongs to the less advanced species of the genus; M. anguinosum  has a much more advanced suture line, although it is stratigraphically older.

Autekologia

Występowanie geograficzne

 Ireland (Leitrim Co.), Morocco (Tafilalt) and Poland (Lublin Coal Basin).

Zasięg czasowy

Carboniferous; Visean (Holkerian - Brigantian)

Materiały muzealne

One specimen figured in Korejwo, 1986

Literatura

Korn, D. & Ebbighausen, V. 2008. The Early Carboniferous (Mississippian) ammonoids from the Chebket el Hamra (Jerada Basin, Morocco). Fossil Record 11 (2): 83-156.

Korejwo, K. 1986. Biostratigraphy of the Carboniferous deposits of the Świdnik blocks (Lublin Coal Basin). Acta Geologica Polonica 36 (4): 337-346.

Moore, E.W.J. 1958. Dimorphoceratidae from the Upper Visean shales of County Leitrim, Eire. Proceedings of the Yorkshire Geological Society 31 (3): 219-226.