This relatively small fish lives in large lakes and rivers (Sublette et al. 1990). Its current range does not approach closely (map) to the southeastern New Mexican locality reported by Miller (1982).
Fig. 1. Dorosoma petenense. Photograph courtesy of the USGS.
The Gatuña Formation, from which the specimen was recovered, is a gravel and sand fill of the Pecos Valley and apparently straddles the Blancan and Irvingtonian Land Mammal Ages (Miller 1982).
Blancan/Irvingtonian: Loving (Miller 1982).
Literature Cited. Miller 1982; Sublette et al. 1990
Last Update: 3 Nov 2008