This highlights a trend found in bats Eocene. A effet, primitive forms are found for almost all in fluviolacustrine deposits not to involve them in a cave habitat.
Hii inaonyesha mwenendo kupatikana katika popo Eocene. En effet, aina primitive ni kupatikana kwa karibu wote katika fluviolacustrine amana si kwa kuwashirikisha katika pango mazingira.