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What is a Fossil?
The Texas Geological Map
5 other sections not shown
Adkins Ambulacral areas ammonites aperture Austin group Baylor Univ beak Boese brachiopods C. D. Homan calyx collectors Color Photo Compare to Photo Conrad coral Cragin crinoid Dallas Museum deﬁnite Denton Duck Creek Eagle Ford Eagle Ford gr Eagle Ford group echinoids edge Eocene Eocene epoch ﬁnd ﬁne ﬁve ﬂat ﬂattened fossil Frank Fredericksburg Fredericksburg division genus geologic Glen Rose formation Grayson identiﬁcation John Moody lobes Lower Cretaceous period Macraster Mary medium-sized mosasaur Museum of Natural Natural History Navarro group Ornament Paleocene epoch Paleozoic Palo Pinto Peak fm Pennsylvanian period periproct peristome Permian Permian period Pleistocene epoch pygidium radiating rear ribs ridges Roemer rounded shape shell Shumard side similar slightly snail species specimens spines spire Stephen Crane suture teeth texana Texas at Austin Texas Memorial Museum Text Illustration Triassic trilobites tubercles University of Texas Upper Cretaceous period urchins valve vertebrae Washita division Weno whorl