†Hydnoangulus quadratus Rigby and Ausich 1981 (glass sponge)
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Hexactinellida - Reticulosa - Dictyospongiidae
Full reference: J. K. Rigby and W. I. Ausich. 1981. Lower Mississippian sponges from the Edwardsville Formation, southern Indiana. Journal of Paleontology 55(2):370-382
Belongs to Hydnoangulus according to J. K. Rigby and W. I. Ausich 1981
Sister taxa: none
Type specimen: Its type locality is IU 15107 Waldrip, Lake Monroe, which is in a Mississippian deltaic sandstone in the Edwardsville Formation of Indiana
Ecology: stationary epifaunal suspension feeder
Distribution: found only at IU 15107 Waldrip, Lake Monroe
Specimen images are retrieved through the ePANDDA API.
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