UCM Vertebrate Observations Collection (Arctos)

Latest version published by University of Colorado Museum of Natural History on Apr 18, 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 321 records in English (225 KB) - Update frequency: unknown
Metadata as an EML file download in English (13 KB)
Metadata as an RTF file download in English (7 KB)


The CU Museum of Natural History maintains an online archive of vertebrate observations. Deposited in this collection are images, audio recordings, field notes, and other documentation associated with non-vouchered vertebrate specimens. Taxonomic coverage includes observations for mammal, reptile and amphibian species, dating from 1950 to present. The geographic scope spans North America, with emphasis in Colorado, the southwest, and Mexico. Many reptiles cataloged in the UCM Observation collection represent range extensions and first county occurrence records. Also notable is a bat call library of over 200 recordings from Boulder County with accompanying field data.

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 321 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 Vertebrate Observations 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: 531ed831-f35f-4bd5-9d83-bf260fc8236d.  University of Colorado Museum of Natural History publishes this resource, and is itself registered in GBIF as a data publisher endorsed by U.S. Geological Survey.


Occurrence; Observation; Occurrence


Emily Braker
  • Metadata Provider
  • Originator
  • Point Of Contact
Vertebrate Zoology Collections Manager
University of Colorado Museum of Natural History
University of Colorado Boulder, UCB 265 Bruce Curtis Building
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

The geographic scope of UCM Vertebrate Observations is North America, with an emphasis in Colorado, the Southwestern United States, and Mexico.

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

Taxonomic Coverage

No Description available

Class Mammalia, Amphibia, Reptilia

Temporal Coverage

Living Time Period 1950 to present

Additional Metadata


Alternative Identifiers 531ed831-f35f-4bd5-9d83-bf260fc8236d