24 



CARBONIFEROUS AMMONOIDS OF AMERICA. 



Tahle of Paleozoic ammonmcl genera — Continued. 



SuperfamilyPROLECANITID^— Continued. 



7. Family Beloceratid.e: 



Probeloceras Clarke 



Beloceraa Hyatt 



Prodromites Smith and Weller 



8. Family Pronoritid/e: 



Pronorites Mojsisovics 



Paraprolecanites Karpinsky 



Sicanites Gemmellaro 



Propinacoceras Gemmellaro — 

 Medlicottia AVaagen 



9. Family Noritidje; 



Darselites Gemmellaro 



Schuchertites Smith 



10. Family Prolec.^nitid.e: 



Prolecanites Mojsisovics 



? Paraceltites Gemmellaro 



? Sandbergeroceras Hyatt 



? Triienoceras Hyatt 



? Pseud arietites Freeh 



? Phenaooceras Freeh 



Pharciceras Hyatt 



11. Family HuNGAKiTioiE: 



Hungarites Mojsisovics 



Otoceras Griesbach 



Devo- 

 nian. 



Lower 

 Carbon- 

 iferous. 



X 

 X 



X 

 X 

 X 

 X 

 X 



Superfamily GLYPHIOCERATID^E— 



12. Family Glvphiocer.vtid.e s. str.: 



Prionoceras Hyatt , 



Pericyclus Mojsisovics 



Glyphioceras Hyatt 



Goniatites de Haain 



Gastrioceras Hyatt 



Paralegoceras Hyatt 



Schistoceras Hyatt 



13. Family Aganidid.e: 



Aganides de Montfort 



Muensteroceras Hyatt 



? Pronannites Haug 



Gonioloboceras Hyatt 



Dimorphoceras Hyatt 



X? 



X 



X 

 X 



X 



X? 

 X 

 X 

 X 

 X 

 X 



X 

 X 



X 



Coal 

 Meas- 

 ures. 



X 

 X? 



Per- 

 mian. 



Trias. 



X 



X 

 X 

 X 



X 



X 



X' 



X 

 X? 

 X 

 X 

 X 



X 

 X 



X 

 X 



X? 



X 

 X 



X 

 X 



