Hinchman Ravine, Curtice Cliff: Callovian, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Terebratulida - Zeilleriidae
Ornithella gemina n. sp. Crickmay 1933
(2 measurements)
Ornithella curticensis n. sp. Crickmay 1933
(1 measurement)
Rhynchonellata - Rhynchonellida - Norellidae
Gnathorhynchia perplicata n. sp. Crickmay 1933
(1 measurement)
Rhynchonellata - Rhynchonellida - Rhynchonellidae
Ptilorhynchia plumasensis n. gen., n. sp. Crickmay 1933
(1 measurement)
Gastropoda - Trochidae
Trochus hinchmanensis n. sp. Crickmay 1933
Crickmay 1933
"100 yards southeast of Curtice Cliff"
see common names

Geography
Country:United States State/province:California
Coordinates: 40.1° North, 120.8° West (view map)
Paleocoordinates:34.9° North, 62.2° West
Basis of coordinate:based on nearby landmark
Altitude:3900 feet
Geographic resolution:outcrop
Time
Period:Jurassic Epoch:Middle Jurassic
Stage:Callovian 10 m.y. bin:Jurassic 5
Key time interval:Callovian
Age range of interval:165.30000 - 161.50000 m.y. ago
Stratigraphy
Formation:Hinchman
Stratigraphic resolution:group of beds
Stratigraphy comments: The "coral zone" cited by the author is part of the Hinchman sandstone which has been revised to the Hinchman Formation. (Callovian) according to Imlay in "Jurassic paleobiogeography of the conterminous United States in its continental setting".
Lithology and environment
Primary lithology:coarse,tuffaceous lithified sandstone
Includes fossils?Y
Lithology description: coarse tuffaceous sandstone according to Diller (USGS Bulletin 353)
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Metadata
Database number:164637
Authorizer:M. Clapham, J. Marcot Enterer:M. Manojlovic, J. Marcot
Research group:marine invertebrate
Created:2014-12-08 21:28:14 Last modified:2014-12-08 21:28:14
Access level:the public Released:2014-12-08 21:28:14
Creative Commons license:CC BY
Reference information

Primary reference:

53761. C. H. Crickmay. 1933. Attempt to Zone the North American Jurassic on the Basis of its Brachiopods. Geological Society America Bulletin 44:871-894 [M. Clapham/M. Manojlovic]

Secondary references:

78785 C. H. Crickmay. 1933. Mount Jura Investigation. Geological Society America Bulletin 44:895-926 [J. Marcot/J. Marcot]