Dpaul7 Posted July 7, 2018 Glyphaspis capella Trilobite Wolsey Shale of Montana Cambrian Period ( 541 (+/- 1)- 485.4 (+/- 1.9) million years ago) The trilobite measures 5/8 by 1/2 inches and is on a matrix measuring 1 1/4 inches by 1 1/4 inches. Ecology: fast-moving low-level epifaunal deposit feeder. Primitive Asaphida (possibly ancestral to some other asaphine groups), including families retaining the natant hypostomal condition, as well as other ptychoparioid features; protaspides resembling those of Ptychopariida (not "asaphoid"); not all families included may be monophyletic (i.e., Anomocaroidea as described here is likely a paraphyletic group). Kingdom: Animalia Phylum: Arthropoda Class: †Trilobita Subclass: †Libristoma Order: †Asaphida Family: †Anomocarellidae Genus: †Glyphaspis Species: †capella Link to comment
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