A WINDOW INTO THE CAMBRIAN EXCEPTIONALLY PRESERVED ARTHROPODS
A WINDOW INTO THE CAMBRIAN: EXCEPTIONALLY PRESERVED ARTHROPODS FROM QUEBEC AND WISCONSIN COLLETTE, Joseph H. , Department of Geosciences, University of Massachusetts, Amherst, MA. , 01003 And HAGADORN, James W. , Department of Geology, Amherst College, Amherst, MA 01002.
Blackberry Hill Lagerstätte Mosinee erosional outlier A A’
Potsdam Sandstone Melocheville, Quebec Image © Ronald Blakely, used with permission
Ichnology Undescribed looping trackway 1 cm Phyllocarid 1 cm
Preservational Model Levee Overbank Channel * Vertical exaggeration in block diagrams 8. 5 cm
Wisconsin phyllocarids 1 cm
Phyllocarid Aglaspinoids 1 cm
Quebec Arthropods 1 cm
Wisconsin Phyllocarid Reconstruction Based on 45 specimens
Wisconsin ‘Phyglaspicarcinoids’ Based on 3 specimens
Quebec ‘aglaspinoid’ Based on 2 specimens
Phylogeny Produced with PAUP 4. 10 b C/S Data from Rode & Lieberman (2002) And Briggs et al. (2003)
Phylogeny Produced with PAUP 4. 10 b
Acknowledgments • GSA Graduate Student Research Grant. Geological Society of America • Evolving Earth Student Grant. Evolving Earth Foundation. • Gerald M. Friedman Fund. Society for Sedimentary Geology. • Lerner-Gray Grant for Marine Research. American Museum of Natural History. • Paleontological Society Student Research Grant. The Paleontological Society. • Student Award In Systematic Paleontology. Paleontological Research Institute. • Thanks also to D. E. K. Briggs and A. L. Stigall for their help with this project
Associated Fauna Scyphomedusa Climactichnites 1 cm 10 cm 3 -D Scyphomedusa Undescribed arthropod trackway 1 cm
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