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| | Background history on Anomalocaris part 2 |
 | | Most other anomalocarid workers agreed (e.g., Babcock 1993, Collins 1996), but some (e.g., Hou, Bergstrom and Ahlberg 1995) claimed that anomalocarid mouthparts were not hard enough to deal with trilobites. |
 | | Anomalocarid arthropods have been reported from Cambrian fossil localities around the world, including the Burgess Shale formation in Canada, Rocky Mountain states of the U.S., Chengjiang formation in China, and the Emu Bay Shale formation in Australia. |
 | | Exceptional fossil preservation (At the Burgess Shale and Chengjiang in particular), skillful preparators, and comprehensive studies have revealed much about the palaeobiology of some of these formerly enigmatic animals, but much still remains to be clarified about their anatomy, biology and relationships. |
| www.trilobites.info /background2.html (1044 words) |
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