Anderson,
L. I., Dunlop, J. A., Horrocks, C. A., Winkelmann, H. M. &
Eagar, R. M. C. 1997. Exceptionally preserved fossils from Bickershaw,
Lanacashire, UK (Upper Carboniferous, Westphalian A (Langsettian)).
Geological Journal, 32: 197-210.
Damrow, Daniel F, Lipps, Jere H., and Gershwin, Lisa-ann (2001)
, Geological Society
of America Annual Meeting, November 5-8, 2001.
Frederick R. Schram and Stefan Koenemann, Developmental genetics
and arthropod evolution: part I, on legs, Evolution &
Development (3) 5 Page 343 - September/October 2001.
Hagadorn, JW., Dott, RH., Damrow, D, Stranded on a Late Cambrian
shoreline: Medusae from central Wisconsin, Geology
(39) No. 2.
's Web Site, University of Wisconsin
MacNaughton, R. B et al. First steps on land: Arthropod trackways
in Cambrian-Ordovician eolian sandstone, southeastern Ontario,
Canada. Geology, 30, 391 - 394, (2002).
McNamara, K. J. & Trewin, N. H. 1993. A euthycarcinoid arthropod
from the Silurian of Western Australia. Palaeontology,
36: 319-335.
Hoxie, C.T. (2005) Late Cambrian Arthropod Trackways in Subaerially
Exposed Environments, Thesis.
Vacarri, N.E., Edgecombe G.D. and Escudero C., (2004) Cambrian
origins and affinities of an enigmatic fossil group of arthropods,
Nature 430, 554 - 557. Yochelson,
E. L., and Fedonkin, M. A. (1993) "Paleobiology of Climactichnites,
an Enigmatic Late Cambrian Fossil." Smithsonian Contributions
to Paleobiology Number 74, Washington, D. C.: Smithsonian Institution
Press.
Hagadorn, J. W., and Seilacher, A., Hermits 500 million years
ago?: Geology 37(4), 295-298 (2009).
