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J. Keith Rigby

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Northern Colorado Plateau
Porifera, revised
Southern Colorado Plateau
Treatise on invertebrate paleontology
Sponges of the Middle Cambrian Burgess Shale and Stephen Formations, British Columbia
Porifera, revised.
Treatise on invertebrate paleontology.
Southern Colorado Plateau: field guide
Treatise on Invertebrate Paleontology
Historical Geology of North America