MARYLAND GEOLOGICAL SURVEY 



169 



LIST OF FOSSILS IN EDEN PORTION OF MARTINSBURG SHALE 



Jordan 

 Knob, Pa. 

 (400 feet be- 

 low top) 



Jordan 



Knob, Pa. 



(Top) 



Tuscarora 

 Mt. (400 feet 

 below top) 



Cowans 

 Gap, Pa. 



- Climacograptus bicornis (Hall) var * 



Diplograptus vespertinus (Ruedemann) . . . ;. 



- Cornulites flexuosus (Hall) * 



1 Jleterocrinus heterodactylus Hall j * 



Merocrinus species undetermined * 



Hudsonaster clarki n. sp j 



Berenicea vesiculosa Ulrich 



Bythopora arctipora (Nicholson) * 



1 Hallopora oneallisigillarioides(N\c,\\o\son)\ * 



1 Batostoma jamesi Nicholson * 



1 Arthropora cleavelandi (James) | 



1 Pholidops cincinnatiensis Hall i * 



1 Dalmanella multisecta (Meek) , * 



- Plectorthis plicatella Hall var ! 



1 Strophomena hallie (S. A. Miller) 



1 Strophomena sinuata James var 



1 Rafinesquina squamula (James) * 



- Plectambonites rugosnfi (Meek) * 



1 Leptaena gibbosa (James) '.; 



- Zygospira modcsta (Hall) j 



2 Ctenodonta obliqua Hall * 



1 Ctenodonta filistriata Ulrich 



2 Clidophorns planulatns (Conrad) 



1 Byssonychia vera Ulrich j 



1 Lyrodesma conradi Ulrich j 



" Sinuitcs cancellatus (Hall) | 



2 Sinuites granistriatus (Ulricli) 



2 Tetranota obsoleta Ulrich i 



2 Hnrmotoma gracilis (Hall) * 



1 Lophospira (Ruedemannia) lirata (Ulrich) 



2 Liospira micula (Hall) * 



1 Orthoceras transvcrsum Miller .'.". 



1 Cryptolithus bellulutt (Ulrich) * 



- Cryptolithus recurvus (Uirich) n. sp j * 



2 Triarthrus becki Green -. * 



1 Isotelus stegops Green ' 



1 Calymenc granulosa (Fuerste) * 



2 Aparchites minutissimus (Hall) * 



" Ceratopsis chambersi (Miller) | * 



- Ulrichia bivertex (Ulrich) ; 



- Bythocypris cylindrica (Hall) * 



- Lepidocoleus jamesi (Hall and Whitfield) . * 



1 Restricted to Eden. "Occurs in Ed,n and other formations. 



