Report of tue State Geologist. 209 



Orthoceras Ami/cus, Hall. 1882. 

 Eleventh Annual Report State Geologist of Indiana, p. 324, pi. 33, 

 figs. 3, 4. 



Niagara group. Waldron, Indiana. 



Collected b^ CD. Walcott and C Van Deloo, 1878. 



Orthoceras pauciseptnm,^ Hall. 1859. 



Palaeontology of New York, vol. vii, p. 346, pi. 12, figs. 5a, b. 

 Lower Heldei-berg group (Shaly limestone). Schoharie, N. Y. 



J. Gehhard purchase, 



Orthoceras arenosum. Hall. 1859. 



Pala3ontology of New York^ vol. iii, p. 480, not figured. 

 Oriskany sandstone. Schoharie, N. Y. 



J. Gehhard purchase, 



Orthoceras masculum, Hall. 18*79. 



Palaeontology of New York, vol. v, pt. 2, p. 238, pi. 78b, fig. 1. 

 Schoharie grit. Clarksville, N. Y. 



Orthoceras cingulum, Hall. 1879. 



Palaeontology of New York, vol. v, pt. 2, p. 240, pi. 76, tig. 2. 

 Schoharie grit. Schoharie, N. Y. 



tf, Gehhard purchase. 



Palaeontology of New York, vol. v, pt. 2, pi. 76, fig. 3. 

 Schoharie grit. Schoharie, N. Y. 



J. Gehhard purchase, 



Orthoceras Pelops, Hall. 1861. 

 Descr. New Species Fossils, p. 45. 

 Palaeontology of New York, vol. v, pt. 2, 1879, pi. 35a, fig. 6. 

 Schoharie grit. Schoharie, N. Y. 



J. Gehhard purchase. 



Palaeontology of New York, vol. v, pt. 2, 1879, pi. 35, figs. 2, 2a, 3. 

 Schoharie grit. The Helderberg, N. Y. 



Illustrations of Devonian Fossils, 1876; Cephalopoda, pi. 35, fig. 2. 

 Palaeontology of New York, vol. v, pt. 2, 1879, pi. 35, fig. 1, 

 Schoharie grit. Schoharie, N. Y. 



J. Gehhard purchase. 



