U)G 



The Middle Devoxiax Deposits of Maryland 



Geological Range of Middle Devonian Species in Maryland and New York. — Continued. 





SPECIES 



Maryland 



New York 





c 

 5 



Q 

 o 

 o 



Middle 

 Devonian 

 Romney 



Upper Devonian 

 Jennings 



nl 



O 

 > 



Q 



3 



Middle 

 Devonian 



Upper 

 Devonian 





0. 



E 



a 



o 



O 



u 



o 



£ 



X> 



s 



o 

 £ 



b- 



Si 

 B 



a* 



S <" 



a; 



at 

 .a 

 s 



be 



C 



x: 

 O 





o 



G 



O 



3 



O 



4* 



Portage 







OJ 





0/ 







'a 





be 



C 

 3 



44 

 45 

 46 

 47 

 48 

 49 

 50 



MOLLUSCOIOEA—BHACHIOPODA.— Continued. 



Camarotoechia conjfresata (Conrad) 



Caniarotoechia prolifica Hall 



Camarotoechia sappho Hall 



Camarotffichia sp 



Liorhynclius liniitare (Vanuxem) 



Liorhynchus laura (Billings) 



Liorhynclius cf . niysia Hall 



Centronella cf o\'ata Hall 





* 





* 







t 



t 



* 

 1 



t 



* 







* 

 * 



* 



* 

 * 



« 



• 

 » 



« 

 » 

 * 



t 



* 



* 



« 



" 



• • 



« 



« 



* 





* 



52 

 5.3 

 54 

 55 

 56 

 57 

 58 

 59 

 60 

 61 

 62 

 63 

 64 

 65 

 66 

 67 

 68 



Eunella lincklsni Hall 



Tropidolcptus carinatus (Conrad) 



Atrypa reticularis (Linn*'') 



Cyrtina hamiltonensis Hall 



Spirifer inucronatus (Conrad) 



Spirifer granulosus (Conrad) 



Spirifer audacukis (Conrad) 



Spirifer acuminatus (Conrad) 



Spirifer tullius Hall 



Spirifer angustus Hall 



Spirifer (Reticularia) fimbriatus (Conrad) 



Spirifer cf. consohrinus (d'Orhigny) 



Spirifer sculptilis van maryhindensis Prosser 



."Vnibocoelia uinbonata Conrad 



.\nibocaslia virginiana Prosser 



Anibocoelia pr;eumbona Hall (?) 





* 



69 



70 



Anoplotheca (Coelospira) acutiplicata ((3onrad)... 

 Anoplotheca Camilla (Hall) 







71 

 72 

 73 



74 

 75 

 76 

 77 

 78 

 79 

 80 

 81 

 82 

 83 

 84 



Vitulina pustulosa Hall 



Ath^Tis spiriferoides (Eaton) 



Meristella ? sp 



MOLLfSCA-PELECVPOUA. 



Phthonia soctifrons (Cfmrad) 



Phothyris lanceolata Hall 



Orthonota undulata Conrad 



Orthonota (?) parvula Hall 



Grammysia bisulcata (Conrad) 



Grammysia areuata (Conrad) 



Grammysia sp 



Grammysia circularis Hall (?) 



Euthydesm.i sp 



Tellinopsis s\ibemarsinata (Conrad) 







85 









86 



Panenka obsolescens Kindle 







87 

 88 

 89 



Panenka cf. mult iradiata Hall 



Buchiola retro«triata von Buch 



Buchiola halli Harke 







90 

 91 

 92 

 i)3 



Nucula co'-buliformis Hall 



Nucula, bellistriata (Conrad) 



Nucula lirata (Conrad) 



.Nucula varicosa Hall 







t = related form. 



