Mohawk Valley Fossils

Schizocrania

The figure below shows the distribution of samples containing the inarticulate brachiopod Schizocrania.

Schizocrania is an uncommon inarticulate brachiopod in the MRV strata.

More images found here

Schizocrania Hall & Whitfield, 1875 [*Orbicula? filosa Hall, 1847]

Subcircular to subtriangular in outline, convexiplane to convexiconcave; brachial valve ornamented by fine costellae, pedicle valve by concentric fila, costellae may also occur. Pedicle valve circular in outline, straight, listrium small; posterior margin of brachial valve slightly thickened, pair of elongate subtriangular muscle scars in posterior third of valve, second pair of poorly defined scars near center of valve.
Ord. - L. Dev., North America, Europe

Family Trematidae Schuchert, 1893

Beak of brachial valve marginal, protruding beyond pedicle valve; pedicle opening extending to posterior margin of pedicle valve in all growth stages.
M. Ord. - Dev.

Order Acrotretida Kuhn, 1949

Treatise on Invertebrate Paleontology, H283.