ABT. 14 MICHIGAN TRAVEESE GROUP POHL 27 



Eridophyllum cf. strictum Edwards and Haine. 



GystipJiyllum arboreum Grabaii (chironym). 



Ceratopora cf. partita (Wincbell). 



Favosites placentoides Grabau (chironym). 



F. nitella Winchell. 



Cladopora {Coenitesf) fisheri (Billings). 



Trachi/pora elcgantula Billings. 



T. (?) prohoscidialis (Rominger). 



Alveolites stibramosus Rominger. 



Scalaripora separata Ulrich. 



8. approximata Ulrich. 



Camerotoechia cf. gainesi (Nettleroth). 



Cimitaria, new species near corrugata (Conrad). 



Plethomtftilus cf. oviformis (Conrad). 



Nucleocrinus species cp. obovatus (BarriS). 



New species cp. melon if ormis Barris. 



Heteroschisma gracile Wachsmuth. 



Pentremitidea atnericana Barris. 



Gennaeoorinus cassedayi Lyon. 



Megistocrinus concavus "Wachsmuth. 



M. multidecoratus Barris. 



Dolatocrinus triadactylus Barris. 



Stereocriniis cf. triangtilatus Barris. 



Species characteristiG of the Alpena stage 



Pinna to phyllum. nmltilamellatwn (Nicholson) . 



Merophyllum (?) conatiim (Hall). 



Prlsmatophyllum anna (Whitfield). 



P. cristatuni (Rominger). 



ChonopJiyllum ponderosum Rominger. 



GystipJiyllum cf. aggregatum Billings. 



Microplasma alpenense Grabau (chironym). 



Aulopora serpens minuta Grabau (chironym). 



Favosites cf. hamiltoniae Hall. 



F. radiatus Rominger. 



F. alpenensis Rominger . 



Cladopora robusta Rominger. 



C. expiata Rominger. 



Alveolites cf. goldfussi Billuigs. 



Michelinia, insig-nis Rominger. 



Stroplieodonta cf. concava Hall. 



Chonetes cf. mucronatus Hall. 



Spirifer cf. pennatus (Owen). 



8. cf. granulosus Hall. 



Nephriticerina alpenensis Foerste. 



Acleistoceras casei Foerste, 



A. nummulatum Foerste. 



Alpenoceras ulrichi Foerste. 



Numerous eriniods of the genera Megistocrinus and Dolatocrinus. 



Characteristic species of the Presque Isle stage 



Heterophrentis prolifica (Billings). 

 H. convoluta (Hall). 



