GIRTY, THE GUADALUPIAN FAUNA 
139 
fore, a large part of the Hueco is represented by “Red Beds” in the Cloud- 
croft section, appearing to be what Mr. Richardson has found the Capitan 
to be, a great lens in the “Red Beds” fingering toward the north into beds 
of clastic material, either red themselves or passing into the typical “Red 
Beds.” 
From Cloudcroft eastward the geologic structure is, according to Mr. 
Richardson, a regular one, with gentle eastward dips, the general trend of 
the surface also being toward the east but with a descent slightly less rapid 
than the dip of the rocks. A similar regularity and simplicity characterizes 
the structure southward also and it is consequently possible to determine in 
a general way the stratigraphic relations to the Guadalupian section of the 
collections made by Mr. Hill and Mr. Fisher, relations which were not pre¬ 
viously known. 
A summary of the paleontologic data contained in these collections will 
be of interest at this point. The identifications are preliminary to a careful 
discussion of the paleontology of the region, but they will serve to show the 
general character of the faunas. The following is a composite list from 
Cloudcroft, New Mexico, based upon collections made by Mr. Hill, Mr. 
C. A. Fisher, Mr. Richardson and myself, only the more common and sig¬ 
nificant species being included in it: 
Echinocrinus sp. 
Chonetes aff. Geinitzianus 
Productus I vest 
Productus Leei ? 
Productus Mexicanus ? 
Productus subhorridus ? 
Marginifera Manzanica 
Marginifera Cristobalensis 
Composita Mexicana 
Cardiomorpha ? sp. 
Nucula levatiformis 
Manzanella elliptical 
Aviculipecten aff. Vanvleeti 
Myalina aff. perniformis 
Allerisma Gilberti ? 
Schizodus Wheeleri? 
Schizodus n. sp. 
Cleidophorus aff. Pallasi 
Bakewellia? sp. 
Plagioglypta canna 
Bellerophon majusculus 
Euphemus subpapillosus 
Bucanopsis modesta 
Murchisonia terebra ? 
Murchisonia sp. 
