paleonet Age Range Mytiloides striatoconcentricus

[Dee Ann Cooper <deeanncooper@xxxxxxxxx>]

What is the accepted range zone for Mytiloides
striatoconcentricus?  My research team is trying to
tighten up a stratigraphic assessment.

Dee Ann Cooper, BS, MS, PG
Phone: (409) 755-7244
Cell: (409 651-7619
Address: 17890 Nonie Lane, Lumberton, TX  77657
State of Texas Licensed Professional Geologist No. 3328