Marjum formation

Marjum formation
Stratigraphic range: Middle Cambrian
Location
Location Utah

The Marjum formation is a Cambrian geological formation that overlies the Wheeler Shale in the House Range, Utah.[1] It is known for its occasional preservation of soft-bodied tissue, and is slightly younger than the Burgess Shale,[2] falling in the Ptychagnostus praecurrens trilobite zone.[3]

References

  1. ^ "Trilobites of The Marjum Formation". http://www.westerntrilobites.com/Formations/Marjum.htm. 
  2. ^ Robison, R. A. (1964). "Upper Middle Cambrian Stratigraphy of Western Utah". Geological Society of America Bulletin 75: 995–992. doi:10.1130/0016-7606(1964)75[995:UMCSOW]2.0.CO;2. ISSN 0016-7606.  edit
  3. ^ Conway Morris, S.; Robison, R. A. (1986). "Middle Cambrian priapulids and other soft-bodied fossils from Utah and Spain". University of Kansas Paleontological Contributions 117: 1–22. hdl:1808/3696. http://kuscholarworks.ku.edu/dspace/bitstream/1808/3696/1/paleo.paper.117.pdf.  edit