IOWA ACADEMY OF SCIENCES 
205 
There is given helow a list of fossils found in the Missourian forma- 
tion in Madison county. Messrs. Tilton and Bain have been followed 
in so far as they gave the horizon of the fossil mentioned in their report. 
Thanks are also due to Prof. T. E. Savage and Mr. Herman Mueller, 
for assistance in identifying fossils in the appended list. The number 
placed opposite the name corresponds with that of the bed in the typi- 
cal section and indicates the horizon at which it may be found. 
Protozoa. 
Fusiillna cylimlrica. Meek & Hayden 20 
COELLENTEEATA. 
Aulopora (probably gracilis). Keyes 10 
Axopliyllum rude. White and St. John 3 
Chaetetes millcporaccoiis. Milne-Edwards and Haime Des M. 
Lophophyllum profundum.. Milne-Edwards and Haime X2&X4 
Michelinia engcneae. White 
Syringopora mulfaftcnuato. McChesney 3 
Echinodermata. 
Archacocidaris agassizi. Hall 5&X1 
Hydreionocrimis niucrospinus. McChesney 
Ulocrinus Jcansasensis. Miller & Gurley 6 
Molluscoidea. 
FistuUpora nodulifera. Meek j 0 
Rhomdopora lepidodendr aides. Meek (5 
Septopora Mserialis. Swallow (5 
Brachipoda. 
Amhocoelia piano convexa. Shumard 18 
Chonetes grannlifer. Owen 6&7 
CJionetes mesolohus. Norwood and Pratten Des M. 
Chonetes parvus. Shumard Des M. 
Chonetes verneuilianus. Norwood and Pratten 6,9&11 
Derliya Mloda. Hall & Clarke 
Derhya crassa. Meek and Hayden ' 7&8 
Dielasma hovidens. Morton .X2&X4 
Hustedia, mormoni. Maroon X2&X4 
Mekella striato-costata. Cox X2 
Productus cora. D’Orbigny 11 
Productus costatus. Sowerby X2&X4 
Productus longispinns. Sowerby X2,X4&11 
Productus muricatus. Norwood & Pratten Des M. 
Productus nehr ashen sis. Owen 6 
Produstus punctatus. Martin 0 
Productus semireticulatus. Martin 
Pugnax uta. Marcon X2&X4 
Retictilaria perplexa. McChesney 3 
Rhipidomella pecosi. Marcon X2&X4 
Spirifer cameratus. Morton 3,6&11 
Sinriferina hentuchensis. Shumard X2&X4 
Seminula argentea. Shepard . . X2,X4,X3&(5 
Mollusca. 
Allorisma subcuneatum. Meek & Hayden 7 
Aviculopecten occidentalis. Shumard 18 
Myalina hansasensis. Shumard li 
Myalina subquadrati. Shumard 11 
Myalina swallovi. McChesney 11 
