34 
— 
Lower Blairmore localities 
Kootenay 
| Bull Head Mountain ss. 
■ ■ « 
‘•“I 
C 
G 
W 
Lakota 
Fuson 
Patuxent 
Arundel 
Pat apse o 
Korae 
European Lower Cretaceous 
Trinity 
Cheyenne j | 
| CH2 
| CH3 
1 CH4 
| CH5 
| CH6 
| GH7 
| CHS 
| CS1 
| CS2 
! CV1 
iva 1 
DA3 
! DBl 
DB2 
DF1 
Marchantites blairmorensis. 
X 
Sagenopteris elliptica 
X 
X 
X 
X 
X 
x 
Sagenopteris canadensis. .... 
X 
Sagenopteris mcleami.. 
X 
X 
X 
X 
Sagenopteris mantelli 
X 
X 
Onychiopsis psilotoides . , . „ , . 
X 
X 
X 
X 
X 
X 
x 
x 
x 
9 
Onychiopsis goepperti 
X 
X 
X 
X 
x 
y 
x 
9 
? 
“ 
Cladophlebis parva. 
X 
X 
X 
X 
V 
x 
V 
x 
J 
X 
v 
? 
Cladophlehis montanensis , . . 
X 
X 
X 
Cladophlebis virginiensis , . . . 
9 
X 
X 
x 
f 
9 
Cladophlebis ungeri 
X 
9 
x 
X 
X 
9 
Cladophlebis distant. ....... 
X 
X 
X 
9 
Coniopteris pachyphylla . . . , 
X 
x 
Pteropkyllum acutipennis , . . 
X 
X 
X 
X 
x 
Dioonites bn chi an us abietinus 
X 
X 
X 
? 
\ 
X 
9 
Stenorachis canadensis 
X 
Nilsonia densinerve 
X 
X 
X 
Ginkgo arctica , 
X 
X 
X 
X 
Y 
9 
Nageiopsis angustifolia . ..... 
X 
X 
X 
X 
I ^ 
? 
Y 
X 
i x 
Nageiopsis sp 
X 
Torreya dicksoniana 
X 
X 
X 
Cephalotaxopsis magnifolia.. 
X 
? 
X 
X 
X 
Arthrotaxopsis grandis 
X 
X 
X 
X 
X 
X 
X 
X 
X 
9 
1 X 
X 
X 
? 
Geinitzia sp. .............. . 
X 
X 
Sphenolepis sternbergiana. . . 
X 
X 
9 
X 
X 
x 
X 
X 
1 X 
X 
Sequoia smittiana 
X 
X 
5 
\ 
Brachyphyllum sp. 
X 
Sapindopsis brevifolia 
X 
x 
Y 
x 
SYSTEMATIC DESCRIPTION OF THE FLORAS 
Bryophyta 
Genus, marchantites Brongniart 
Marchantites blairmorensis Berry n. sp. 
Plate IV, figures 1, 2 
Several specimens from locality CH7 in the Lower Blairmore clearly 
represent the vegetative body of a thalloid liverwort (Marchantiales) 
which resembles the modem genus Marchantia in a general way, and which 
is referable to the convenient form-genus Marchantites proposed by 
Brongniart in 1849. They may be incompletely characterized as follows: 
vegetative body thalloid, laminar, of relative large size, prostrate, dicho- 
tomously branched, thickened median ly into a semblance of a midrib, of 
a thin consistency, and showing in places numerous thin oblique rhizoids. 
The largest fragment recovered shows part of a body 11 cms. in length 
and with three dichotomies in this distance. The thallus ranges from 6 to 
