Terrestrial snails (Cochlicopa and Pupilla sp.) from the Vara Daniel site (mostly from deep auger tests). These are probably Pleistocene marker species and were perhaps extirpated in Central Texas before the Younger Dryas. They illustrate the effect of long-term climate change on snail faunas. Source: Archaeological Excavation of a Deeply Buried Paleoindian Component at the Vara Daniel Site (41 TV 1364), Travis County, Texas, Appendix K, Fig. K-11. EComm, 2010.