Arachnida - Trigonotarbida - Lissomartidae
Full reference: J. A. Dunlop. 1995. Redescription of the Pennsylvanian trigonotarbid arachnid Lissomartus Petrunkevitch 1949 from Mazon Creek, Illinois. The Journal of Arachnology 23(2):118-124
Parent taxon: Trigonotarbida according to J. A. Dunlop et al. 2013
See also Dunlop 1995
Sister taxa: Aenigmatarbus, Anthracomartidae, Anthracomartus hageni, Anthracophrynus, Anthracosironidae, Aphantomartidae, Archaeomartidae, Areomartus, Elaverimartus, Elaverimartus pococki, Eophrynidae, Eophrynus scharfi, Eurymartidae, Eurymartus spinulosus, Kreischeriidae, Namurotarbus, Palaeocharinidae, Palaeocteniza, Palaeotarbus, Permotarbus, Termes buchi, Trigonomartus woodruffi, Trigonotarbidae, Tynecotarbus
Subtaxa: Lissomartus
Ecology:
Distribution: found only at Mazon Creek (YPM collection) (Carboniferous of Illinois)