ammonites
Icaronycteris Type Locality (Eocene of the United States)

Also known as Fossil Lake; Green River

Where: Lincoln County, Wyoming (41.8° N, 110.7° W: paleocoordinates 46.9° N, 94.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Green River Formation, Wasatchian (55.8 - 50.3 Ma)

• "about 21 m above Wasatchian Knight Formation"; "of Lysite age"

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - small; brown, yellow marl

• "relatively small Fossil Lake"
• "marlstone... pairs of layers... fine-grained clastic material, one being a thin dark-brown layer; the other, thicker, more granular, and light-buff in color"

Size class: macrofossils

Preservation: adpression

Collection methods: quarrying,

• nearby fish occurrences presumably are omitted

Primary reference: G. L. Jepsen. 1966. Early Eocene bat from Wyoming. Science 154(3754):1333-1339 [J. Alroy/J. Alroy/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 37809: authorized by John Alroy, entered by John Alroy on 24.03.2004

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)

Icaronycteris Type Locality: Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Angiospermae indet. flower
1 specimen
"unidentified flower"
Vertebrata
Osteichthyes indet. (Huxley 1880)
1 element
"a single scale... of a small fish"
Mammalia - Chiroptera - Icaronycteridae
Icaronycteris index n. gen., n. sp. Jepsen 1966
1 specimen
see common names

Geography
Country:United States State/province:Wyoming County:Lincoln
Coordinates: 41.8° North, 110.7° West (view map)
Paleocoordinates:46.9° North, 94.3° West
Basis of coordinate:stated in text
Altitude:2200 meters
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Wasatchian
Age range of interval:55.8 - 50.3 m.y. ago
Stratigraphy
Formation:Green River
Stratigraphic resolution:bed
Stratigraphy comments: "about 21 m above Wasatchian Knight Formation"; "of Lysite age"
Lithology and environment
Primary lithology:planar lamination,brown,yellow marl
Lithology description: "marlstone... pairs of layers... fine-grained clastic material, one being a thin dark-brown layer; the other, thicker, more granular, and light-buff in color"
Environment:lacustrine - small
Geology comments: "relatively small Fossil Lake"
Taphonomy
Modes of preservation:body,adpression
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Articulated whole bodies:some
Associated major elements:none
Disassociated major elements:none
Disassociated minor elements:some
Temporal resolution:snapshot
Collection methods and comments
Collection excludes:some genera
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Collection method comments: nearby fish occurrences presumably are omitted
Metadata
Also known as:Fossil Lake; Green River
Database number:37809
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:paleobotany,vertebrate
Created:2004-03-24 11:18:44 Last modified:2008-11-07 10:05:53
Access level:the public Released:2004-03-24 11:18:44
Creative Commons license:CC BY-NC-ND
Reference information
Primary reference:
10080 G. L. Jepsen. 1966. Early Eocene bat from Wyoming. Science 154(3754):1333-1339 [J. Alroy/J. Alroy/M. Carrano]