lOO 
BULLETIN OF THE LABORATORIES 
(1) . Ferrugineous freestone (Keokuk ?) with Phillipsia mermnec- 
ensis, P. serraticaudata ^ Aviculopecten rushvillensis , Spirifer 
Keokuk lo ft. 
(2) . Shales with Shuzodus newarkensis, Producius semireticulatus 
P. burlingtonensis ^ many bryozoa, Macrodon newarkensis, Gram- 
my sia ova/a, etc. - - - - - - - 20 ft. 
(3) . Freestone with Productiis arcuatus^ Conularia newberryi^ 
etc. 10 ft. 
(4) . Shales and freestone with Centronella^ Spiriferina^ etc. 35 ft. 
(5) . Shales with Lingula scotia, Lingula gannensis^ Orbiculoidea 
pleurites^ Ctenodonta houghtoni, etc. - - - 5 It. 
II. Kinderhook. (part or all) Middle Waverly. 
(6) . Conglomerate II, with Spirfer winchelli, Dexiobia ovafa, 
Phaethonides occidentalis , Syringothyris cuspidatus^ etc. 
(7) . Shales with Saogumolites ohliquus^ Allormna winchelli, Pro- 
thyris 7 neeki^ Grammysia ventricosa^ etc. - - - 7 ft. 
(8) . Freestone with a parting of shale and many fossils. Creni- 
pecten winchelli^ Proetus au^iadatus, Rhynchonella marshallen- 
sis, Syringothyris cuspidatus^ Goniatites lyoni, Spathella ventri- 
cosa. ----- • - - - ft. 
(9) . Shale, fossils as above but rare. - - - - 15 ft. 
I. Transition Zone. Devonian. In part equivalent to Che- 
mung and Portage. 
(10) . Conglomerate I, (variable) with Spirifer delloideits. 
(11) . Shale with Palceoneilo attenuata, P. elliptica^ Nuculaiowen- 
sis^ N. Stella^ Sphenotus flavins, etc. - - - 30 ft. 
(12) . Flags and shales with Leiopteria ortoni, Crenipecten subcar- 
diformis, etc. - - - - - - - 10 ft. 
(13) . Shales and flags, very fossiliferous, with Spirifer marionen- 
sis, Proetus prcEcursor, Productits shwnardianus, Conidaria 
gracilis, Entolium shumardianum. 
(14) . Flags and shale nearly unfossiliferous (with number 13). 
About - - - - - - - - 225 ft. 
(15) . Soft greenish shales with Palaeoneilo consUnilis, Schizodus 
sp., Spirifer resembling S. disjimctus, Proetus sp., Pleuroto- 
maria, etc. ------- 10-20 ft. 
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