Full reference: A. I. Petrunkevitch. 1922. Tertiary Spiders and Opilionids of North America. Connecticut Academy of Arts and Sciences 25:211-279
See also Petrunkevitch 1922
Sister taxon: Palaeopachygnatha scudderi
Type specimen: UCM 17705, an exoskeleton. Its type locality is Florissant (University of Colorado Collection), which is in a Chadronian lacustrine - large shale in the Florissant Formation of Colorado.
Ecology: nektobenthic carnivore
Distribution: found only at Florissant (University of Colorado Collection)
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.