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[[image - appears to be drawing of specimen(s) described below]]

Plectambonites aequistuatus - 8611 OHosee, Liberty Hill Tennessee 
[[strikethrough]] [[?]] [[strikethrough]] cotypes 10mm. in length, 13.5 wide 
Hinge 13 +

Dorsal valve gently concave, sulcate medially, very finely ribed. Taint radial undulations. 

Plert. delicatulas = Leptellina (not Tennesseesis but related form in Lenoir. 

P. tuseptatus - large occurs in chert with Dinorthis and large Rafinesquina. Large specimens from Holton N of Copper Creek placed here.

P. crassus 8616 Holston, McNutt Qy.
This is probably Leptaena.

Leptaena prona 8620 badly silicified from Dinorthis zone Near Goodwins Ferry. In chert

L. palustris Holston, Concord Tenn.