Mazon Creek Fossil Fauna
Cnidarians
Anemones, Sea Jellies, and Hydroids
Anemones - Class Anthozoa
Essexella asherae - Foster, 1979
Above and below: a variety of Essexella asherae from Pit 11 (strip mine), Braidwood, IL
and Braceville, IL (shaft mine spoil pile) - mostly A.Young collection
and Braceville, IL (shaft mine spoil pile) - mostly A.Young collection
Essexella asherae, Pit 11 Mazonia South Unit, Braidwood, IL - R.Holm collection (photo by R.Holm)
Multiple Essexella asherae "Blobs"
Pit 11, Braidwood, IL - A.Young collection
multiple Essexella asherae, Milwaukee Public Museum collection P25941.1
Reticulomedusa greenei - Foster, 1979
Undescribed Sea Anemone
Jellyfish - Class Scyphozoa
Octomedusa piekorum - Johnson and Richardson, 1968
Octomedusa pieckorum, Pit 11, Braidwood, IL, showing characteristic "plus sign" in relief - A.Young collection
Lascoa mesostaurata - Foster, 1979
Box Jellyfish - Class Cubozoa
Anthracomedusa turnbulli - Johnson and Richardson, 1968
Hydroids - Class Hydrozoa
Mazohydra megabertha - Schram and Nitecki, 1975
Mazohydra megabertha, Milwaukee Public Museum collection P360451.1
Drevotella proteana - Nitecki and Richardson, 1972
Drevotella proteana, Milwaukee Public Museum collection P360270.1
Etacystis communis - Nitecki and Schram, 1976
Anemone-like Hydrozoans
Milwaukee Public Museum collection P360274.1