G H Girty

2 books

Mar 1, 2013
Cover of Some Linguloid Shells from the Late Devonian and Early Carboniferous Rocks of Pennsylvania and Ohio

Some Linguloid Shells from the Late Devonian and Early Carboniferous Rocks of Pennsylvania and Ohio

Mar 1, 2013
Cover of A Redescritpion of Ferdinand Roemer's Paleozoic Types from Texas

A Redescritpion of Ferdinand Roemer's Paleozoic Types from Texas