104 
The American Geolo<ji*t. 
August, 1894 
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U£ ~ 
-* 
x 
1 e . a* 3 = r 
Arietina 
)evonian 
ssrs.Hill 
K ^ ~ S — ~ 
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^ 
S 
'e IS *j- -C . ~ - IB no ^_ 
s» -S "S "£ • ^ - 
S - hi - 
« .s ^ S • 
^ ~ z ° = 
~j 
• _j_ if. if ~ • 
=: 
. — ' z. 
S t tad -£ ; ; 
X 
c J^ /■- 
= ~ -. r £ "s — «j Hill does not recognize 
■X 
| -2 ■ > 
s .5 ^ _i ~ i •- the Jura in Texas, regard- 
H 
r 1 ^ 1 | 
^ £ _= -2 'n ~— >. ing the whole series as the 
t. "7 p --= o.S'p two lowest divisions of the 
Pf s .r 
i>— --r. 1- -- «£ Texas Cretaceous. 
< " § = "" ■- C 
*H 
.-__ 
' 00 
i g ac 
§ 1 '~t ~i & t. 
J e . ■=- Marcou 's re- 
■S y Q* 
~ S . 2 At § 
c ^ ^ 
o 
fe. •-? .5 - s 
g-S.c - a r r a ngement 
*- > 3§.« ..g . of Shumard's 
s ? ~ g g = sect ion. 
§ 
§;« III 
•1 ; -i r J E ?' S 
| © < - ~. 2- « 
■"i 
►— — ** r * ■ — 
^ = -CC^ 
^ i= C 
X 
g 
bill M .! 
g s ~ Shumard added later 
« g £ i he Ripley group and 
^ i |* Dakota division. He 
■7. 
C ?7 * referred the Jura, Trias, 
> ~k — — and Dyas, to the Dako- 
23 
\ '-~.~ ta division. 
X) 
,_ . . , . . 
in 
- 2-^ — •— — ~ S 
m 
^ ~r - ~~ s ~ i= Marcou recognized, below the 
X 
g ^ -C r E : ."^r— Neocomian, the Jura, the Trias 
g 
v :' t ^t ^ rj g r -- all ,j \\ u . Dyas of northwestern 
'S.2 'S o^'S'S^ * e^ Texas, the Indian Territory, and 
5 
— "^S^ — '^-~>~c New Mexico. 
s 
M ~i — ■ 
T> 
i 
l- 
,C C j; a 
-r 
cc Roenier did not recognize the Middle 
X 
~5 z z ■- Cretaceous, or Oenomanian and Albian, 
H 
{_ L £ nor the Lower Cretaceous, or Aptian and 
s 
5 % p 2 2 % Neocomian. — G. G. Shumard, 1852-53, re- 
c 
*£'~ ^'S'c peated the name Senonian only. 
p£ 
toS 5 15 *s, 9 
i. 
£J w 
