1. Jurassic arthropod tracks from northern Iran
2. A spider trackway from the Coconino Formation, Seligman, Arizona;Alf R. M.;Bulletin of the Southern California Academy of Sciences,,1968
3. Azain J. S. (2006). The effect of temperature and slope on the morphology of experimental spider and scorpion trackways [PhD dissertation] University of Colorado at Denver. https://digital.auraria.edu/work/ns/4cfeb159-a5a4-46c1-908c-8145e80f0450
4. The ichnotaxonomy of the invertebrate trackways of the Coconino Sandstone (Lower Permian), northern Arizona;Braddy S. J.;New Mexico Museum of Natural History and Science Bulletin,1995
5. Tracks in the Coconino Sandstone compared with those of small living arthropods;Brady L. F.;Plateau,,1939