The Lower Cretaceous Gryphæas of the Texas Region, Issues 150-152... - Robert Thomas Hill - Bog

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The Lower Cretaceous Gryphæas Of The Texas Region, Issues 150-152; Issue 151 Of Bulletin Of The United States Geological Survey; Volume 151 Of Geological Survey Bulletin; The Lower Cretaceous Gryphæas Of The Texas Region; Robert Thomas Hill; Issue 151 Of Bulletin; Geological Survey (U.S.).
Robert Thomas Hill, Thomas Wayland Vaughan
Govt. Print. Off., 1898
Nature; Fossils; Gryphaea; Gryphæa; Nature / Fossils; Paleontology; Science / Paleontology