546 A. C. VEATCH 
2. The most important locality on the Laramie Plains at this time 
was Carbon. It was not only a noted paleontological locality, but 
was the most important coal-mining town on the Union Pacific Rail- 
road at that time. It was the only locality on the Laramie Plains 
where the King Survey critically examined and distinctly delimited 
the Laramie beds. ‘The Hayden Survey recognized Laramie strata 
at another point on the Laramie Plains, Rock Creek, but regarded 
the Carbon locality, including its southern extension containing the 
plants labeled from “‘ Medicine Bow stage station,” as affording better 
and more complete exposures. 
3. It was the practice of the Hayden and King surveys to name © 
formations and groups from localities where the beds were regarded 
as typically exposed. While King and Hayden did not always defi- 
nitely state that a name was derived from a certain locality, the 
source of the name can in all cases be completely inferred from the 
context. Thus King used Green River, Bridger, Uinta, Truckee, 
and other names without saying the name was derived from such and 
such a locality, while he distinctly states the source of Vermilion 
Creek, Weber, and other names. King’s strong feeling in this matter 
of a type locality is shown by the fact that he refused to use the prior 
name “Wasatch” and adopted the new name “Vermilion Creek”’ 
simply because at what he considered Hayden’s type locality the 
beds were not completely and typically exposed. ‘The state of feeling 
at this time is further shown by the fact that the name “ Laramie”’ 
was proposed and adopted as an exact synonym of Hayden’s 
“Lignitic” as defined by him in Wyoming and Colorado. If merely 
a general term without a type locality was desired, the term “Lig- 
nitic’? would have served all. purposes. The change was clearly 
based on a recognition of the necessity of having a geographic type 
locality. From the above facts it follows irresistibly that the type 
locality of the Laramie is Carbon, on the Laramie Plains. 
4. A critical consideration of investigations of Hayden and King 
parties in this region shows that the actual Laramie exposures studied 
by them are separated from the Cretaceous by an unconformity of 
great magnitude. At Carbon Hague particularly and minutely 
included only the beds above the break. Both Hayden and Hague 
regarded these beds as entirely conformable with those beneath; 
