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J. K. Rigby, C. Hannum, and T. J. Frest
Hexactinellid sponges from the Silurian Waldron Shale in southeastern Indiana
Journal of Paleontology (May 1979), 53(3):542-549

Index Terms/Descriptors:
Hexactinellida; Hyalospongea; Indiana; Invertebrata; Middle Silurian; morphology; new taxa; paleontology; Paleozoic; Porifera; Shelby County Indiana; Silurian; taxonomy; Twenhofelella; United States; Vaurealispongia; Waldron Quadrangle; Waldron Shale

Latitude & Longitude:
N39°20'00" - N39°30'00" and W85°50'00" - W85°40'00" (Search for maps and images at Alexandria Digital Library)

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