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Posted by Jim on January 02, 1999 at 05:10:37: In Reply to: Heteroschima gracilis posted by Nephi on January 01, 1999 at 17:01:04: My little book says: Heteroschisma is a Blastoid genus found in the Mid Devonian of North America. Note spelling ..schisma. Class: BLASTOIDEA Say, 1825 Order: Fissiculata Jaekel, 1918 Family: CODASTERIDAE Etheridge & Carpenter, 1886 Heteroschisma gracile (Fay 1961) is the type species for Heteroschisma. Species name may well be out of date (see you are using "gracilis"). Source of information is Treatise of Invertebrate Paleontology (S) Echinodermata 1(2) Hope this is useful (and not too technical) Jim

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