114 The Chouteau Group — Rowley. 
In an inch layer of a wliite or ferruginous (white in fresh 
exposures but stained with iron in weathering) siliceous coarse- 
grained sandstone, near the Ijase of the black shales are to be 
found the fish i-eraains mentioned above, together with a small 
Lingula also identical with a form in the shales above. 
The fossils in the Vermicular sandstone are casts and very 
poorly preserved, while the remains in the Lithographic lime- 
stoueand underlying shales are often in a fine state of preser- 
vation. 
Three miles north-east of Curryville is an outcrop of a 
brownish, earthy, thin-bedded limestone that yields a series of 
fossils unlike eitiier the forms from the Cooper county Chou- 
teau or the Lithographic limestones. Unfortunately these 
fossils have been ('hanged to cale-sjiar and defeat structural 
examination. 
While the Jjithographic limestone has but few and small 
<;orals, these beds offer quite a series of polyps, ranging from 
single corals an inch long to those five or six inches in length. 
One cyathophylloid is extravagantly frilled and may be Dr. 
White's ChonophijUum scdaliense, while another is very 
tortuous, strongly reminding one of AmpJexus yatidelU. 
Another is spinose, like a Keokuk Zaphrentis. Along with 
the cyathophylloids are two species of Michel in ia, oneundoubt- 
<^dly the M. placenta of Dr. White, described in Hayden's 12th 
annual report; the other an extravagant form mimicking a 
<:ompound cyathophylloid. A fine Syringopora, an Aulopora 
and Zaphrenti^i calccola complete the list of most striking 
forms. 
Among crinoids are a small Acfinocrinus an Ollacrinus a 
Flaft/crinus and a small blastoid, like Granatocrinus. 
Of brachiopods, a small Spirifera, an Orthis, like that from 
the Kinderhook (Lithographic) at Louisiana but much smaller, 
a little Chonefe.'<, a small Afhi/ris like hirsuta, a large smooth 
Athyris, a lihynchonella and Strophoniena rliomhoirlalis, like 
the Burlington variety. 
The presence of Zaphrentis calceola, Micheiinia placenta and 
Chonophyllum sedaliense seems to make these beds the equiva- 
lent of the Sedalia strata, referred to the Chouteau limestone 
by Dr. White. But as Z. calceola ranges through the entire 
Burlington group and an Orophocrinus, perhaps but a variety of 
