38 NEW YORK STATE MUSEUM 



Yaleville (Waddington quadrangle), furnished a closely chambered 

 cephalopod shell resembling Cameroceras tenuiseptum 

 of the Chazy/ This may be merely a well-grown specimen of 

 Proterocameroceras brainerdi, a Fort Cassin Beek- 

 mantown fossil^ with which silicified specimens in poor condition 

 were provisionally identified from the basal beds below the Rutland 

 Railway bridge over Trout brook (locality 12). Gastropods are 

 more abundant; species of Eccyliopterus (?)^ with solute body- 

 whorl in the old quarry south of the Rutland tracks at locality 16 

 a mile west of Norwood, besides many loose specimens that Doctor 

 Ruedemann calls "Maclurea compare s o r d i d a and m a t u- 

 t i n a "* the former of Fort Cassin and the latter of Tribes Hill 

 age elsewhere f also an Ophileta like O. 1 e v a t a,** numerous in a 

 loose slab below the Hewittville lower dam (locality 23) on the 

 Potsdam sheet. 



In a gutter exposure along the Rutland tracks just beyond the 

 old quarry above mentioned, a single layer contained a small, 

 pointed Linguloid, probably Lingulepis acuminata 

 s e q u e n s^ described from the Beekmantown of Ticonderoga, and 

 two other poorly preserved species of brachiopods which Doctor 

 Ruedemann assigned to Syntrophia lateralis^ and P o 1 y- 



^Orthoceras tenuiseptum Hall, Paleontology of N. Y. 1:35; 

 pi. 7, fig. 6. See N. Y. State Mus. Bui. 90, p. 408; pi. 3-6. Doctor Ulrich 

 suggests that this specimen may represent a species, " like Endoceras 

 montrealense, that is common about this horizon and distinct from 

 C. t e n u i s e p t u mi." (See Orthoceras montrealensis Bil- 

 lings, Geol. of Can., p. 121, tig. 37 a-c. N. Y. State Mus. Bui. 90, pi. 9.) 



^Orthoceras brainerdi Whitfield. See N. Y. State Mus. Bui. 

 90, p. 405 ; pi. 1-2. 



' Doctor Ulrich thinks this shell may be his E. planidorsalis 

 (unpublished?), "a characteristic and very widely distributed species." 



^ Hall, Paleontology of N. Y. 1:10; pi. 3, figs. 2-23. and 3, respectively. 

 Maclurites sordidus and m a it u t i n u s, in U. S. Nat. Mus. 

 Bui. 92, p. 780. 



° Both, according to Ulrich, occurring in division D of the Beekman- 

 town, however. 



"Vanuxem, 3d Dist., p. 36, fig. I. See Pal. of N. Y. i :ii, fig. i; pi. 3, 

 fig. 4-5. Given as from the Little Falls formation in U. S. Nat. Mus. 

 Bui. 92, p. 879. This may be one of the various forms called O. c o m- 

 planata or perhaps more likely the O. compact a of Salter (see 

 Geol. of Can., p. 102, fig. 9a-b; and p. 115, fig. 23a-b). 



' Walcott, Smithsonian Misc. Coll. 53, p. 72, pi. 8, fig. 4. L i n g u 1 a 

 acuminata in Pal. of N. Y. 8, pt i, pi. i, fig. 1-2, not of Conrad. 



*Triplesia lateralis Whitfield. See Pal. of N. Y., 8, pt 2, 

 p. 216, pi. 62, fig. I-IO. 



