ABOUT THE DATABASE:
primary data are published occurrences of mammals of late Oligocene
(Arikareean) through Miocene (Hemphillian) from the United States.
For each species occurrence, the following data were entered: taxonomic
name (as of 2009), latitude and longitude, relative age range,
geological occurrence, and taphonomic information as specified
at the MIOMAP data site.
MIOMAP database structure parallels
the FAUNMAP structure
to facilitate analyses that might require both databases.
entry began in 2000 and was completed in 2005. Since then, periodic
updates have been made and continue today. For use in research
applications, the complete or partial database can be downloaded.
Users should update the archival database as appropriate for their
purposes, and cite the MIOMAP project as noted below* in publications.
M.A. Carrasco extracted the data from the literature and entered
it for most of the states. For the states of Idaho, Montana, and
Wyoming, data was originally compiled by A.D. Barnosky; checked,
added to, and entered by Sabrina Minter and B.P. Kraatz; and updated
by A.D. Barnosky and M.A. Carrasco. The Nevada portion of the
database was developed by E.B. Davis. A.D. Barnosky coordinated