SPONGES FROM THE PARK CITY FORMATION (PERMIAN) OF WYOMING

@inproceedings{Rigby2004SPONGESFT,
  title={SPONGES FROM THE PARK CITY FORMATION (PERMIAN) OF WYOMING},
  author={J. Keith Rigby and Donald Wilkin. Boyd},
  booktitle={Journal of Paleontology},
  year={2004}
}
Abstract A new small twiglike anthaspidellid sponge, Virgaspongiella ramosa new genus and species, and an incrusting lithistid sponge have been recovered from silicified residues of etched limestone blocks from the Middle Permian Franson Member of the Park City Formation in western Wyoming. Virgaspongiella n. gen. has a skeleton of upwardly and outwardly divergent trabs formed of merged tips of runglike dendroclone spicules in ladderlike series. One to a few oxeas function as coring spicules in… 

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