UCM Mammal Collection (Arctos)

Latest version published by University of Colorado Museum of Natural History on Jul 5, 2024 University of Colorado Museum of Natural History

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 18,492 records in English (11 MB) - Update frequency: unknown
Metadata as an EML file download in English (13 KB)
Metadata as an RTF file download in English (8 KB)


Vertebrate Zoology in the CU Museum of Natural History is a biodiversity repository of more than 120,000 specimens from five taxa: Fishes, Amphibians and Reptiles (Herpetology), Birds, and Mammals. With the exception of birds, our collections are the largest collections of their kind in Colorado. Since our specimens document changes in biodiversity over the last 200 years, they are treasures of biological and historical significance. The Mammal collection includes over 16,000 specimens with representation from twenty-five countries, with the majority of specimens from Colorado (nearly 70%) and other western states. Specimens are typically preserved as a set of a study skin and an extracted skull, although large mammals are also prepared as hides, taxidermy, and skeletons. Many people have added to the mammal collection over the years, including the pioneer Colorado naturalist, Edward Royal Warren (3,000+ specimens), Donald A. Spencer, Dallas A. Sutton, Leslie Viereck, and emeritus professor and former Museum Director, David M. Armstrong. E.R. Warren's archive of field notes and photographs are an invaluable resource for documenting distributions and changes of Colorado mammals in the first three decades of the 20th century.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 18,492 records.

1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Occurrence (core)

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.


The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

University of Colorado Museum of Natural History Mammals Collection


Researchers should respect the following rights statement:

The publisher and rights holder of this work is University of Colorado Museum of Natural History. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 88d8974c-f762-11e1-a439-00145eb45e9a.  University of Colorado Museum of Natural History publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF-US.


Occurrence; Specimen; Occurrence


Emily Braker
  • Metadata Provider
  • Originator
  • Point Of Contact
Vertebrate Zoology Collections Manager
University of Colorado Museum of Natural History
UCB 265
80309 Boulder
Laura Russell
  • Programmer
VertNet Programmer
David Bloom
  • Programmer
VertNet Coordinator
John Wieczorek
  • Programmer
Information Architect
Museum of Vertebrate Zoology at UC Berkeley
Dusty McDonald
  • Point Of Contact
Arctos Database Programmer
University of Alaska Museum
Christy McCain
  • Curator
Vertebrate Zoology Curator
University of Colorado Museum of Natural History
UCB 265
80309 Boulder

Geographic Coverage

Twenty-five countries are represented in the mammal collection, though most specimens are from Colorado (nearly 70%) and other western states.

Bounding Coordinates South West [-90, -180], North East [90, 180]

Taxonomic Coverage

More than 14,600 specimens. 2 type specimens (1 holotype & 1 paratype)

Class Mammalia (mammals)

Temporal Coverage

Living Time Period 1800 to present

Additional Metadata


Alternative Identifiers 88d8974c-f762-11e1-a439-00145eb45e9a