Full reference: D. Bardack. 1991. First fossil hagfish (Myxinoidea): A record form the Pennsylvanian of Illinois. Science 254:701-703
Sister taxa: none
Type specimen: MCP 126, an other (anterior end). Its type locality is Mazon Creek, which is in a Westphalian fluvial shale in Illinois.
Distribution: found only at Mazon Creek
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.