NEW YORK STATE MUSEUM 



SYNOPTIC TABLE OF THE DISTRIBUTION OF THE CEPHALOPODA OF THE 

 BEEKMANTOWN AND CHAZY STAGES OF THE CHAMPLAIN BASIN 



The capital letters denote the localities as follows: B Beekmantown; C Chazy; 

 F Fort Cassin; I Isle La Motte; P Philipsburg; V Valcour. 



NAME OF SPECIES 



BHF.K- 

 MAN- 

 TOVVN 

 STAGE 



1 Cameroceras brainerdi Whit/. (sp.).. . F,V 



2 C. tenuiseptum Hall | , 



3 C. curvatum Rued. 



4 Vaginoceras oppletum Rued 



5 Endoceras (?) champlainense Rued... 



6 E. (?) hudsoni Rued 



7 E. magister Rued 



8 E. montrealense Bill. sp 



Suecoceras marcoui Barrande sj>, ., 



Nanno noveboracum Rued 



Piloceras explanator Whit/ 



Cyrtendoceras (?) priscum Rued 



Baltoceras (?) pusillum Rued , 



Orthoceras lentum Rued 



O. progressum Rued 



O. vagum Rued 



O. modestum Rued 



Geisonoceras shumardi Bill. sp.. 

 Protocycloceras lamarcki Bill. sp. . 



20 P. whitfieldi Rued 



ai P. (?) c/. furtivum Bill, sp 



22 Spyroceras clintoni Miller sp 



23 Orygoceras cornu-oryx Whit/, sp 



24 Barrandeoceras natator Bill, sp 



25 Eurystomites kelloggi Whit/ (sp.) — 



26 E. accelerans Rued 



27 E. amplectens Rued 



28 E. rotundus Hyatt 



29 E. virginianus Hyatt 



30 Tarphyceras farnsworthi Bill. (sp.). . . 



31 T. seelyi Whit/, sp 



32 T. champlainense Whit/ (sp.) 



33 T. perkinsi Whit/ (sp.) 



34 T. clarkei Rued 



35 T. mulucameratum Rued 



36 Aphetoceras farnsworthi (Bill, sp.) 



Hyatt 



37 A. attenuatum Hyatt 



38 Deltoceras vaningeni Rued 



39 Schroederoceras eatoni W hi/, (sp.) . . 



40 S. cassinense Whit/ (sp.) 



41 Trocholitoceras walcotti Hyatt 



4a Trocholites internestriatus // 'hit/ (sp.) 

 43 Plectoceras jason Bill, (sp.) 



B 



F, V 

 B 

 V 



B, V 



CHAZY STAGE 



C, V 



F, V 



44 Loxoceras moniliforme Hall (sp.) 



45 Cyrtactinoceras boycii Whit/, (sp.) . . 



46 C. champlainense Rued 



4 yGonioceras chaziense Rued 



48 Ooceras kirbvi Whit/ (sp.) 



49 O. (?)raei Whit/, (sp.) 



50 O. seelyi Rued.. 



51 O. lativentrum Rued 



52 (). (?) perkinsi Rued 



53 Cyclostomiceras cassinense l('hit/.(sp.) 



54 C. minimum Whit/, (sp.) 



55 Oncoceras pristinum Rued 



F,V 



V 



V 

 F,V 

 F (?) 



P 

 F, V 



F 



F 



V 



F, V 

 F, V 



F 



F 



Incertae sedis 



56 (Orthoceras) rectiannulatum Hall , 



57 (O.) repens Bill 



58 (O.) catulus Bill 



59 (O.) perseus Bill , 



C, V 



C(?) 



C, V 



I 



C,V,I 



V 



V 

 V 

 V, I 



c,v,i 



OTHER LOCALITIES 



Also Crown Point 



Beekmantown beds near Mon- 

 treal 



c,v,i 

 "v" 



C,V,I 



c 



CV,I 



c 



C, I 

 V, I 



I(?) 



Chazy of Mingan islands 

 Beekmantown beds of Mingan 

 islands, Newfoundland, etc. 



Ontario, Can. 



Chazy of Mingan islands 



Chazy of Mingan islands 

 Shakopee of Wisconsin 



Lexington Va 



Chazy of Mingan islands and 

 Newfoundland. M. Chazy of 

 Crown Point 



Chazy of Plattsburg 



AlsoSaranac river at Plattsburg 



Also Saranac river at Plattsburg 



horizon unknown 



