I22 SMITHSONIAN MISCELLANEQUS COLLECTIONS VOL, 127 
section on Spring Creek is a more complete and far superior one in every respect 
to that in the Criner Hills. 
Brachiopods are abundant and exquisitely preserved in most of the localities of 
the Pooleville member. Decker’s list (Decker and Merritt, 1931, p. 48) is almost 
wholly from the Pooleville member and is duplicated below with corrections and 
additions by the writer: 
Acanthocrania oklahomensis Cooper 
A. subquadrata Cooper 
Ancistrorhyncha costata Ulrich and Cooper 
A. globularis Cooper 
Camarella volborthi = Camerella anteroplicata Cooper 
C. oklahomensis Cooper 
Cliftonia gouldi = Oxoplecia gouldi Ulrich and Cooper 
Cramia granulosa = Either or both of the species of Acanthocrania above 
C. trentonensis = Petrocrania inflata Cooper 
Craniops tenuis Cooper 
Cyclospira parva Cooper 
Dalmanella fertilis = ? 
Dinorthis deflecta = ? Chaulistomella magna Schuchert and Cooper 
D. subquadrata = Chaulistomella magna Schuchert and Cooper 
Ectenoglossa ? sculpta Cooper 
Glossella liumbona Cooper 
Hebertella bellarugosa = Glyptorthis costellata Cooper 
H., frankfortensis = ? 
*Lingula coburgensis 
L. cf. elegantula 
L. eva 
Lingulasma oklahomense Cooper 
Lingulella ? glypta Cooper 
Neostrophia gregaria Cooper 
Onychoplecia tenuis Cooper 
Opikina extensa Cooper 
O. formosa Cooper 
Opikina sp. 2 
Orbiculoidea cf. lamellosa= O. eximia Cooper 
Orthis tricenaria = Hesperorthis sulcata Cooper 
Pachyglossa biconvexa Cooper 
Paurorthis macrodeltoidea Cooper 
Pionodema cf. subaequata = Doleroides oklahomensis Cooper 
Plaesiomys sp. = ? 
Platymena ? bellatula Cooper 
Plectambonites sericeus 
Plectambonites sp. (small) = ? 
Plectoglossa oklahomensis Cooper 
Plectorthis symmetrica Cooper 
Pseudolingula imperfecta Cooper 
*Rafinesquina alternata (incorrect identification, genus not seen by writer) 
Rafinesquina minnesotensis = Opikina 
*R. winchesterensis = ? This is a Trenton species from Kentucky misidentified. 
Rhynchotrema minnesotense = Rostricellula transversa Cooper 
Rostricellula sp. 1 
Scenidium anthonense = Skenidioides perfectus Cooper 
