NO. 1814 NETTKXROTH FOSSIL COLLECTION — BASSLER I3I 



of the underlying bed, while the many lower Devonian corals 

 described from the Falls of the Ohio come from the lowest 

 division of the Jefifersonville limestone. A few of these 

 corals have been listed below with a partial fauna from the 

 other beds. The bryozoan bed contains a fauna so distinct 

 and prolihc that special lists of the bryozoa and ostracods 

 are given. The Devonan rocks forming the Falls of the Ohio 

 are illustrated on the accompanying plate. The following are 

 the more common fossils : 



Favosifcs limitaris Rominger. 



Faz'osites canadensis Billings. 



Favosites cmmonsi Rominger. 



Favosites hcmisphrricus Troost. 



Favosites tuberosiis Rominger. 



Alveolites mordax Davis. 



Cladopora roemcri (Billings). 



Eridophyllum arundinaccum Davis. 



Blothrophyllum decorticatum Billings. 



Acrophyllum oneidaense Billings. 



Zaphrentis gigantea Lesueur. 



Syringopora hisingeri Billings. 



Romingeria umbcllifcra (Billings). 



HadrophyUuiii orbigiiyi Edwards and Haime. 



Nuclcoriniis vcrncuUl (Troost). 



Spirifcr acuminata Conrad. 



Spirifcr arctiscgmentiim Hall. 



Spirifcr duodcnarius (Hall). 



Spirifcr grcgarius Clapp. 



Spirifcr raricosta Hall. 



Cyrtina crassa Hall. 



Atliyris fiiltonciisis Swallow. 



Lcpfcriia rhoiiiboidalis Wilckins. 



Atrypa reticularis Linnseus. 



Mcristella nasiita (Conrad). 



Pentagonia unisulcata (Conrad). 



Pcntamerclla arata (Conrad). 



Chonctcs acufiradiafus (Hall). 



Strnphcodutita dcinissa Conrad. 



Strop hcodoiita per plana Conrad. 



Strophcodonta concava Hall. 



Turbo shiiinardi Verneuil. 



Euomphalus dcccivi Billings. 



Glyptodcsma erectum Conrad. 



Aviculopccten princeps Conrad. 



Paracyclas elliptica Hall. 



Platyceras durnosum Conrad. 



