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National Park Service
U.S. Department of the Interior
NPSpecies - Park Species Profile
 
Crotalus oreganus concolor
midget faded rattlesnake
Dinosaur National Monument
   
Record Status: Approved
Occurrence:
Present
Nativeness:
Native
Abundance:
Unknown
 
Scientific Name with Authority:
Crotalus oreganus concolor Woodbury, 1929
Park Preferred Common Name(s):
midget faded rattlesnake
Park Synonyms:
Crotalus viridis concolor
 
Taxonomic Hierarchy:
Kingdom Animalia, Phylum Chordata, Subphylum Vertebrata, Order Squamata, Suborder Serpentes, Family Viperidae, Genus Crotalus, Species Crotalus oreganus
Seasonality Tags:
Breeder
Threatened/Endangered Status:
 
State Species of Concern Status:
UT: SGCN
Ozone-sensitive Status:
 
NatureServe Global Rank:
G5T3
NatureServe State Rank:
CO: S3?; UT: S3?
Evidence:
0 Observations, 1 Vouchers, 1 Data Store References, 0 External Links
Other Parks Where Species is Listed:
 
Arches National Park
Canyonlands National Park
Capitol Reef National Park
Colorado National Monument
Natural Bridges National Monument
 
Last Modified Date:
1/23/2007
 
NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 9/30/2025 11:17:58 AM
NatureServe Global Rank and State Rank
NatureServe. 2017. NatureServe Web Service. Arlington, VA. U.S.A. Available http://services.natureserve.org. Accessed: 12/4/2017. Updated quarterly.
This information is provided by NatureServe (www.natureserve.org) and its network of natural heritage member programs, a leading source of information about rare and endangered species, and threatened ecosystems.
Species Profile
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