Mazon Creek Fossil Fauna
Worm-like Animals
ribbon worms, roundworms, arrow worms, spoon worms, velvet worms, and fan worms
Archisymplectes rhoton
Ribbon Worm
Two specimens of Archisymplectes rhoton, Milwaukee Public Museum P359782 and P26065.1
Nemavermes mackeei
Roundworm
Prapulites konecniorum
Priapulites konecniorum, MPM P359924.2 and P359924.1 (negative and positive halves).
Paucijaculum samamithion
Arrow Worm
A.Young collection - Pit 11, Braidwood, Illinois
Right specimen (MC Fossil Fauna Figure 167.3) shows an arrow worm with an Acanthotelson stimpsoni shrimp - J.Wittry collection
Caprinoscolex ellogimus
Spoon Worm
Coprinoscolex ellogimus, Milwaukee Public Museum collection P25871.1
A.Young collection - Pit 11, Braidwood, IL, Figure 14.4 The Mazon Creek Fossil Fauna 2012.
A.Young collection - Pit 11, Braidwood, IL (coal mining tipple area).
Chicago Academy of Sciences collection (detail on right showing gut pellets)
Coprinoscolex ellogimus, A.Young collection - Pit 11, Braidwood, Illinois
Ilyodes inopinata
Velvet Worm
Ilyodes inopinata, J.Wittry collection
Spirorbis sp.
Tube Worm
Spirorbis sp., Milwaukee Public Museum collection P25872
Spirorbis sp., Milwaukee Public Museum collection P30727.1
Spirorbis sp. on a Taeniophyllum latifolium thalloid, Milwaukee Public Museum collection MPM P359202
Undescribed "Smooth Earthworm"
A.Young collection - Mazon River, Morris, Illinois