Upper Range of Stringocephalus (Devonian Brachiopoda)
Johnson, J. G.; Klapper, Gilbert; Trojan, William R.
Newsletters on Stratigraphy Volume 8 Number 3 (1980), p. 232 - 235
published: Apr 11, 1980
ArtNo. ESP026000803018, Price: 29.00 €
Stringocephalus occurs in a succession of shelf-edge faunas in Nevada as high as beds that yield conodonts diagnostic of the upper hermanni-cristatus Zone. This is confirmed in 3 measured sections in which conodonts and silicified brachiopods occur in the same samples.