000 00674nam#a2200193ua#4500
001 GOACATREC39356
900 0 0 _a19990906
901 0 0 _aENG
903 0 0 _a77528
245 0 0 _aMiddle and Upper Ordovician Symmmetrical Univaled Mollusks [ Monopiacophora and Bellerophontina ] of the Cincinnati Arch Region
100 0 0 _aWahlman, G.
440 0 0 _aU.S. Geological Survey Professional Paper 1066-0
902 0 0 _a564
650 0 0 _aMonoplacophora, Fossil - Middle West
650 0 0 _aArcheogastropoda, Fossil - Middle West
650 0 0 _aPaleontology - Ordocician
650 0 0 _aPaleontology - Middle West
260 0 0 _aWashington
_bUnited States Government Printing Office
_c1992
999 _c39370
_d39370