Great Falls Locality 16 (Cretaceous of the United States)

Where: Cascade County, Montana (47.5° N, 111.4° W: paleocoordinates 47.7° N, 60.1° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Kootenai Formation, Late/Upper Aptian (122.5 - 113.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; shale and lenticular sandstone

Size class: macrofossils

Preservation: original carbon

Collection methods: surface (in situ),

Primary reference: C. A. Lapasha and C. N. Miller. 1985. Flora of the Early Cretaceous Kootenai Formation in Montana, Bryophytes and Tracheophytes Excluding Conifers. Palaeontographica Abteilung B 196:111-145 [H. Sims/H. Lindon/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 21152: authorized by Hallie Sims, entered by Heather Lindon on 19.06.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
 Bennettitales -
Pseudocycas douglasii
Pseudocycas douglasii Lapasha and Miller 1985
Polypodiopsida
  -
Cladophlebis oblongifolia
Cladophlebis oblongifolia Fontaine 1889
Fontaine
 Cyatheales - Polypodiidae
Coniopteris hymenophylloides
Coniopteris hymenophylloides Brongniart 1828 scaly tree fern
(Brongniart) Seward
Ginkgoopsida
 Caytoniales - Caytoniaceae
Sagenopteris elliptica, Sagenopteris williamsii, Sagenopteris mclearni
Sagenopteris elliptica Fontaine 1889
Fontaine
Sagenopteris williamsii Bell 1956
(Newberry) Bell
Sagenopteris mclearni Berry 1929
Berry
 Ginkgoales - Ginkgoaceae
Ginkgo pluripartita
Ginkgo pluripartita Heer 1876 ginkgo
(Schimper) Heer
Hepaticae
 Marchantiales - Marchantiaceae
Marchantiolites blairmorensis
Marchantiolites blairmorensis Brown and Robison 1976 liverwort
(Berry) Brown and Robison, bryophyte w/ thallus and rhizoids