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Typical Pennsylvanian crinoidal limestone

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Typical Pennsylvanian crinoidal limestone.jpg Types of symmetry in a fossil coralThumbnailsTypical Texas ForaminiferaTypes of symmetry in a fossil coralThumbnailsTypical Texas ForaminiferaTypes of symmetry in a fossil coralThumbnailsTypical Texas ForaminiferaTypes of symmetry in a fossil coralThumbnailsTypical Texas ForaminiferaTypes of symmetry in a fossil coralThumbnailsTypical Texas Foraminifera