Mudstone Member/Santa Rosa Formation: Carnian, New Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bennettitales
Coniferales
Samaropsis sp. Göppert 1864
unclassified
Cordaitales
unclassified
see common names

Geography
Country:United States State/province:New Mexico County:Guadalupe
Coordinates: 35.0° North, 104.7° West (view map)
Paleocoordinates:13.6° North, 31.3° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Triassic Epoch: Late Triassic
Stage: Carnian 10 m.y. bin: Triassic 3
*Period:Late/Upper Triassic
Key time interval: Carnian Zone:  Dinophyton
Age range of interval: 237 - 227.3 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Santa Rosa Member:Mudstone
Stratigraphic resolution:member
Stratigraphy comments: correlative with Chinle west of Rio Grande
Lithology and environment
Primary lithology:ferruginous,yellow lithified carbonaceous claystone
Secondary lithology:micaceous,gray,yellow poorly lithified silty sandstone
Includes fossils?Y
Includes fossils?Y
Taphonomy
Modes of preservation:mold/impression,adpression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),mechanical,field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:24502
Authorizer:A. Rees Enterer:D. Sunderlin
Modifier:D. Sunderlin Research group:paleobotany
Created:2002-08-08 10:32:51 Last modified:2025-02-22 15:12:02
Access level:the public Released:2002-08-08 10:32:51
Creative Commons license:CC0
Reference information

Primary reference:
6897.PGAP S. R. Ash. 1988. Fossil Plants from the Mudstone Member of the Santa Rosa Formation at the Principal Reference Section. United States Geological Survey Bulletin (1804)21-25 [A. Rees/D. Sunderlin/R. McClees-Funinan]