57- 



NEW YORK STATE MUSEUM 



Glossograptus quadrimucronatus, var. ap- 

 proximatus. 

 explanation of plates, 543, 544. 

 figure, 392. 

 var. cornutus, 33, 37, 50, 129, 138, 

 222, 240, 393-94- 

 explanation of plate, 544. 

 figures, 71, 72, 393. 

 unit, postremus, 45, 51, 129, 138, 394. 

 explanation of plate, 543. 

 figure, 394. 

 subzone, 45. 

 zone, facing p. 9. 

 setaceus, 138, 379, 383. 



figures, 381. 

 spinulosus, 25, 138, 380. 

 whitfieldi, 15, 2T,, 51, 86, 129, 138, 394- 



97, 474- 4/6, 484- 

 explanation of plate, 543. 

 figures, 396. 

 Glyptograptus, 341. 

 amplexicaulis, 30. 



Sec also Diplograptus amplexicaulis. 

 angnstifolius, see Diplograptus angus- 



tifolius. 

 euglyphus, sec Diplograptus euglyphus. 

 Goniograptus, 67, 68, 71, 133, facing p. 

 66. 

 subzone, facing p. 9. 

 geometricus, 133. 

 perflexilis, 133. 

 thureaui, 79, 133, 281. 

 var. selwyni, 133. 

 Gorgonia?, 157. 



retiformis, 155. 

 Gothograptus. 123, 377, 378, 467. 



nassa, 87, 378. 

 Gotland, Island of, 186. 

 Graf, la., 40, 372, 374, 416. 

 Grand Greve, 223. 

 Grand isle. Vt., 38. 42, 44, 408. 

 Granger, Minn., 40, 373, 374, 483, 484. 

 Grant, Col., mentioned, 56, 163. 



Granville, 16, 427. 



Graptolitiferous beds, .continuity of for- 

 mation in same area, 59-66. 



Graptolite genera, synoptic view of the 

 range of the United States, 66-69; 

 synoptic table of range, facing p. 66. 



Graptolite germs, 234. 



Graptolite shales, 65 ; deposited in the 

 same region for longer intervals than 

 most other fossiliferous rocks. 61 ; 

 paleogeographic importance, 62; in the 

 Levis basin, 65. 



Graptolite zones of New York, correla- 

 tion table, facing p. 9. 



Graptolites, of the Devonic. synoptic table 

 of distribution, 58; different preserva- 

 tion facies of, 99-102; of the higher 

 beds, 9-126; of the middle and upper 

 Champlainic, synoptic table of distribu- 

 tion, 48-51; of .the Normanskill shale, 

 13-15; of Siluric, synoptic table of dis- 

 tribution, 52; synoptic lists. 127-39; 

 synoptic and synonymic list. 130-39. 



? Graptolites dentatus, 341. 342, 385, 391. 

 scalaris, 421. 

 venosus, 469. 



Graptolithus, 134, 138, 449. 

 sp., 481. 

 abnormis, 134. 

 alatus, 134. 



amplexicaulis, 138, 361. 

 angnstifolius, 138, t,66. 

 annectans, 135, 264. 

 approximatus, 135. 

 arcuatus, 135. 

 arundinaceus, 221. 

 bicornis, 35. 138, 433, 434. 

 bifidus, 135. 

 bigsbyi, 135. 

 bryonoides, 135. 

 dint on en sis. 138. 450. 



See also Monograptus priodon. 

 const rictus. 135. 



