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Angelo State University
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Sydney tissue collection

Collection of Frozen Tissues

About the Collection

The Collection of Frozen Tissues had its origins tied to the growth of the Collection of Mammals in the 1980’s under the direction of Dr. Mark D. Engstrom, now at the Royal Ontario Museum.  Major growth continued after Dr. Robert C. Dowler assumed the duties as Curator in 1988.  

The Collection of Frozen Tissues became recognized when Dr. Loren K. Ammerman arrived as assumed the role as Curator and remains in that position today. Under her direction, the collection has accumulated than 19,000 vouchered samples.  The collection is comprised primarily of mammals, but tissues of birds, reptiles, and amphibians are also included.  In addition to frozen tissue, the collection also maintains resources housed in ethanol and lysis buffer.


Data for specimens in the Collection of Frozen tissues is currently maintained within the other existing voucher databases:  Mammalogy, Ornithology, and Herpetology.   Selected information from the database is searchable through our web interface. The data is searchable locally, but is also housed by GBIF, VertNet, and iDigBio. 

Although every effort is made to ensure the accuracy of catalog information, researchers should verify information before use or publication. For additional information not provided through the searchable web interface, or if you have questions, please contact the Curator.

Tissue Loans

Requests for tissue loans should be made in writing to the curator of frozen tissues, Dr. Loren Ammerman. Destructive sampling requests will be considered by the curator. Please refer to the ASNHC Tissue Loan Policy regarding the information that should be included in a request.

Curator of Frozen Tissues

For more information or for loan requests, please contact the curator:

Dr. Loren K. Ammerman
Department of Biology
Angelo State University
ASU Station #10890
San Angelo, TX 76909-0890
Phone: 325-486-6643

Destructive Sampling

The policy and application for destructive sampling are under revision.  Please email the Curator for details.