Kosmoceras (Gulielmiceras) jason (Reinecke).
Palm sized chunk of matrix packed with Ammonites. On one surface there are two fine complete specimens. Both developed to the middle. original while shell preserved. Zonal index species. These lovely multi Ammonite blocks from Latton are now getting difficult to obtain. The pit is flooded and is a wildlife reserve.
Jurassic., Lower Oxford Clay. Jason Zone.
Latton, south of Cirencester, in Wiltshire.
Specimen : 11 x 10 x 4 cm.