Ceratites

About it

Triassic ammonoid with stout ribs and sutures whose lobes are toothed like a saw while the saddles stay smooth. Ceratites nodosus from the Muschelkalk limestone of southern Germany is the classic.

Type

Fossil (mollusc)

Group

Cephalopod (mollusc)

Colours

grey, cream, brown

Transparency

opaque

Periods

Triassic

Typical values: real specimens vary. For more, see mindat.org.