Atry. 



r?o 



Atrypae ? Hail, page 202, ligs. 81-8, 4, 5. Hamilton. 



VIIJ _ VHIc. VHT.C. 



^ H 



Viii a. 



8!, 4! 



Atrypa ? Rogers, p. 829. Found with Ooniatites inter- 



ruptiis, in YIII e. Genesee formation. See note to p. 829. 

 atrypa ? Hall. Plate fig. [66,3.] VIII g. Ohemnng 



formation. 

 Atrypa 



? Erie Co , Pa., Franklin t.. Fairs 



1////,^/^ 



^iin, section No. 15, 200' beneath Third oil sand. 

 (Qi,p. 250.) Vlllg. 



Aulacophyllum convergens. (Hall, 35th An. Rt., 1882. 



Fossil Corals, Niag. and V. Held.) 

 • Oollett's Indiana of 1882, page 281, 

 plate 17, figs. 1, 2.— Villa,. Cornifer- 

 ous limestone ; Falls of the Ohio. The 

 lamellae of this species vary from 80 

 to 120, alternating in size, thin tooth- 

 pl iT.^^'-) fossette narrow, deep. 



Aulacophyllum cruciforme. (Hall, 35th An. Rt., 1882. 



Foss. Corals Niag. and 

 V. Held.) Collett's 

 Indiana ol 1882, page 

 283, plate 17, figs. 5, 

 6.— F/7/^..Cornifer- 

 ous limestone ; Falls 

 of the Ohio. The la- 

 mellae of this species 

 are 140, nearly uni- 

 form at the margin, 

 alternating below; 

 bottom of calyx con- 

 vex and nearly 

 smooth. Two rudi- 

 .^mentary cross fosset- 

 '.yAltes. 



