Chon. 



126 



System, pi. 5, fi^. 13, but is much smaller and more finely 

 striated. L, lata is a Ludlow (= Hamilton) ,YiVi^\^\i fossil. 

 (Hall.) Ya, 



Chonetes coronatus. Spec. 705-31, 802-2 in 0. E. Hall's 

 collections from Orbisonia, and 805-33 from Bell's mills, (both 

 identified by J. Hall, 1888,) from Hamilton^ VIII c, 



Chonetes defleeta. See Appendix, 



Chonetes granulifera. Owen, Geol. Rt. Wis., Iowa and 



Minn., 1852, plate 5, fig. 12. — In Pennsylvania abundant in the 

 Green crinoidal limestone (black shale) at water level at 

 Pittsburgh. Stevenson Rt. K, p. 80. — Also profuse and well 

 preserved in the same Barren Measure rock, near Incline 

 Plane, Birmingham station, Lower St. Clair t., Washington 

 Co. K, p. 310. — In Fayette Co. replaces entirely the Chonetes 

 mesolola^ in Black Foss. L. 250' below Pittsburgh Coal, in 

 Williams ravine, 5 m. N. of Morgantown, Rt. L, p. 34, 36. See 

 Specimens Cl-2, C2-5, C2-9, all from near Harvey's Five 

 Points, Westmoreland Co. (Report GO, p. 239)— X/K 



Chonetes illinoisensis. See Appendix. 



Chonetes iowensis. Owen, Geol. Iowa, Wise, and Min- 

 nesota, 1852, plate 3 A, fig. 7, from the Devonian 

 limestone of Iowa city. — VIII c. 



VUlc 



Chonetes laticostata. Chonetes mucronata. VIII a, <?. 



Chonetes lepidus. (Hall, 1857, 10th An. Rt. 1857; Pal. 



N. Y., Vol. IV, page 132, 

 plate 21, fig. 5 <^, natural size, 

 5 J, 5 (?, enlarged. Marcellus 

 and Hamilton) Claypole's 

 ?K2Ulist of fossils in Perry Co. 



.P.od.N.Y 



VoLlV. 



Penn, Preface to Report F2, p. xiii. Hamilton. Also at 



