The fortuitous spalling of a carapace of the nonmarine Permian Suchonella typica Spizharsky 1939 disclosed the adductor muscle attachment scar as well as two accessory scars on both the right side of the steinkern and the inside of the spalled right valve. This central muscle field is illustrated and discussed. An objective list of species described in or referred to Suchonella Spizharsky 1939 is appended.
Additional Publication Details
On the central muscle attachment scar pattern of Suchonella Spizharsky 1939