192 
Gryphcea Pitcheri — Murcou • 
pitcheri filling up the rocks in association with Oslrea congesta 
and Inoceramas problematicus ; an association absolutely im¬ 
possible. In this second book, as well as in the first, there is 
neither a single figure of Gryphcea pitcheri, nor a word of de¬ 
scription; and it is difficult to make out what he means by 
Gryphcea pitcheri. 
Dr. Newberry has failed completely to sustain in any way Ms 
determination of the Gryphcea found by him from the upper 
Canalian river country, to the Moquis pueblos and the Rio San 
Juan country, as belonging truly to the Gryphcea pitcheri of 
the Kiamisha river, of the Fort Washita and Comet creek, four 
and eight hundred miles away from the region explored by him. 
Since his two explorations, several geologists have gone over 
the same roads that he did, and no one has found the Gryphcea 
pitcheri —which according to his phraseology is there in ‘large 
numbers,” filling up the rocks—in any of the localities indicated 
by Dr. Newberry. But even more, one of these explorers, ap¬ 
pointed by Lieut. Geo. M. Wheeler, on the special and very 
strong recommendation of Dr. Newberry, did all he could to 
sustain Newberry’s singularly incorrect classification, and did 
go so far as to color the geological map of a “Part of North 
Central New Mexico” between Santa Fe, Galisteo and Las Vegas, 
according to Dr. Newberry’s recommendation, making the 
Jurassic and the Trias “a linear outcrop,” unique in geological 
maps all the world over. And even such an uncompromising 
sustainer as professor J. J. Stevenson is, in his report (Geograph¬ 
ical Surv. west of 100th meridian, vol. hi, Supplement, Geol¬ 
ogy, 1881, Washington) does not once mention having met 
with a single specimen of Gryphcea pitcheri anywhere on the 
Upper Canadian river or round Galisteo. 
Having explored New Mexico five and six years before Dr. 
Newberry, and being the first to have recognized that the 
Gryphcea pitcheri characterizes the Neocomian in Texas, I ean 
say that I did not find that fossil anywhere in New Mexico. 
The Neocomian does not exist in Central New Mexico, and cer¬ 
tainly not between Galisteo and Pecos; the Upper Cretaceous or 
Chalk formation lies there in discordance of stratification over 
Jurassic rocks of Canon Blanco and Cuesta, equivalent and the 
continuation of the Jurassic formation of the Tucumcari area 
of Texas. 
