Viewing page 441 of 473

This transcription has been completed. Contact us with corrections.

Plaesiomys elongata - length 20mm. Width 22.5, thickness 11mm. Hinge 20.5mm. 11 - 13 costellae in 5mm. at front. Squarish, very thick, ventral sinuate, flatly convex on flanks. Dorsal rather strongly convex. cluterarea long apsachine (strongly) Dorsal intera[[?]] curved apsadine.

Dinorthis atavoides 8605 - Holston N of Copper Creek on RR between Speers, Ferry & Clinchport. The specimen is large with no intercalated or bifurcated costae The Median portion of the ventral valve is swollen, the front depressed. The postero-lateral regions are depressed. The specimen looks like the large Dinorthids called Lenoir by Butts. Ventral muscles large. Matrix of interior is dark gray nodule evidently from shale.