Collyrites elliptica Lamarck
Matrix free test. Collyrites is one of very few echinoids where the petaliferous area are split into 3 at one end and 2 at the opposite end. Nice preservation and detail.
Jurassic Callovian.
Teloche, Sarthe, France.
Echinoid : 3.8 x 3.5 x 1.7 cm.
