ammonites
Bruchus crassus Förster 1891 (leaf beetle)

Insecta - Coleoptera - Chrysomelidae

Full reference: B. Förster. 1891. Die Insekten der "Plattigen Steinmergels" von Brunstatt. Abhandlungen zur Geologischen Specialkarte von Elsass-Lothringen, Band 3 1:335-593

Belongs to Bruchus according to B. Förster 1891

Sister taxa: Bruchus aboriginalis, Bruchus anilis, Bruchus bowditchi, Bruchus carpophiloides, Bruchus decrepitus, Bruchus exhumatus, Bruchus henshawi, Bruchus osborni, Bruchus pisi, Bruchus striolatus

Type specimen: Its type locality is Brunstatt, horizon d3, which is in an Oligocene lacustrine - large marl in France

Ecology:

Average measurements (in mm): body 4.00 x 2.30, elytron 2.00 x 1.42