Cyamodus muensteri ( Agassiz, 1839 )

Sues, Hans-Dieter & Schoch, Rainer R., 2025, Synopsis of the Triassic reptiles from Germany, Fossil Record 28 (2), pp. 411-483 : 411-483

Cyamodus muensteri ( Agassiz, 1839)

Holotype.

SNSB-BSPG AS VII 1210, incomplete cranium.

Type locality.

Lainecker Höhenzug, Bayreuth, Bavaria.

Type horizon.

Ceratites flexuosus through C. compressus zones , upper part of Trochitenkalk Formation and lower part of Meissner Formation, Upper Muschelkalk Subgroup. Age: Middle Triassic (Anisian: Illyrian).

Diagnosis.

Rieppel (2001 a) argued that this taxon cannot be diagnosed at present.

Comments.

The holotype is incomplete and heavily reconstructed. If Cyamodus laticeps Owen, 1858 (based on an incomplete cranium, NHMUK PV R 1644 ) is a subjective junior synonym of C. muensteri , as suggested by Drevermann (1928), the holotype of the former presents a single potentially autapomorphic feature – nasal processes of premaxillae meeting frontals posteriorly, separating nasals from each other. However, the presence of this feature cannot be verified in SNSB-BSPG AS VII 1210 ( Rieppel 2001 a).

References.

Agassiz (1839), Drevermann (1928), Rieppel and Hagdorn (1999), Rieppel (2000, 2001 a).