Grabau — Faunas of the Hamilton Group. 



301 



Lamellibranchiata : 



34 



Aviculopecten princeps. r 



46 



Modiomorpha concentrica. r 



47 



M. subalata. R 



55 



Palaeoneilo tenuistriata. R 



66 



Cypricardinia indenta. rc 



Brackiopoda : 



78 



Craniella liamiltomae. r 



82 



Rhipidoniella Vanuxemi. rc 



83 



R. leucosia. rc 



84 



R. Penelope, r 



86 



R. cyclas. R 



90 



Stropheodonta concava. R 



92 



S. inequistriata. rc 



93 



fe. nacrea. R 



97 



Cnonetes deuecta. r 



99 



C. scitula. c 



"1 AA 



100 



0. lepida. K 



103 



Productella spinulicosta. rc 



105 



Spirifer mucronatus. c 



109 



S. granulosus. R 



110 



S. audaculus. rc 



112 



S. macronotus. r 



114 



S. firabriatus. rc 



116 



Amboccelia umbonata. rc 



119 



Cyrtina Hamiltonensis. r 



120 



Nucleospira coneinna rc 



121 



Athyris spiriferoides. c 



138 



Tropidoleptus carinatus. rc 



Anthozoa : 



152 Streptelasma rectum, c 

 Monotrypa (?). r 



The Trilobite Beds. 

 h. The lowest Trilobite bed. 



Phacops rana is the most abundant fossil in this bed, and next to it 

 comes Crypliceus Boothi. 



