UPPER CARBONIFEROUS OP IOWA 
281 
study. Grabau and Shimer, “North American Index Fossils,” 
has been the principal authority used in the identification of 
the fauna and in terminology. 
TARKIO LIMESTONE. 
r’AUNA. 
Foraminifera — 
Fusulina secalica. 
Bryozoa — 
Rhombopora lepidodendroides. 
Brachiopoda — 
Ambocelia planoconvexa. 
Chonetes glaber. 
Chonetes granulifer. 
Chonetes verneuilana, 
Enteletes hemiplicata. 
Meekella striatocostata. 
Productus cora. 
Productus costatus. 
Productus nebrascensis. 
Productus pertenuis. 
Productus semireticulatus. 
Pugnax Utah. 
Seminula argentea. 
Spirifer cameratus. 
Spiriferina kentuckiensis. 
Pelecypoda — 
Allorisma terminale. 
Aviculopecten white. 
Myalina kansasensis. 
Myalina subquadrata. 
Myalina swallovi. 
Gastropoda — 
Bellerophon pericarinatus. 
Bucanopsis montfortiana. 
Naticopsis altonensis. 
Orthonema suboeniatum. 
Phanerotrema grayvillensis. 
Platyceras parvum. 
Cephalopoda — 
Orthoceras rushense. 
Trilobita — 
Phillipsia major. 
CITY BLUFFS SHALE. 
Fauna. 
Foraminifera — 
Fusulina secalica. 
Anthozoa — 
Lophophyllum profundum. 
Lophophyllum westi. 
Crinoidea — 
Ceriocrinus hemisphericus. 
Erisocrinus typus. 
Eupachycrinus tuberculatus. 
Hydreionocrinus acanthroporus. 
Hydreionocrinus mucrospinus. 
Vermes — 
Serpula insista. 
Bryozoa' — 
Fenestella perelegans. 
Fistulipora nodulifera. 
Pinnatopora trilineata. 
Polypora crassa. 
Polypora elliptica. 
Polypora submarginata. 
Rhombopora lepidodendroides. 
Septopora biserialis. 
Stenopora carbonaria. 
Brachiopoda — 
Ambocelia planoconvexa. 
Chonetes glaber. 
Chonetes granulifer. 
Chonetes variolatus. 
Dielasma bovidens. 
Enteletes hemiplicata. 
Hustedia mormoni. 
Marginifera (Productus) longi- 
splna. 
Marginifera (Productus) muri- 
catus. 
* Meekella striatocostata. 
