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Page established 9-25-98, updated 2-12-2000
- Nickname: Angelwing Bottom
- Collected: Site Z, Constellaria Bed of Cannon Limestone from Upper Ordovician Shale in Nashville, Tennessee, USA. Recovered from thin silty shale between two limestone beds.
- Estimated Age: about 450 million years old.
- Comments: Scale Bar is 0.5 mm. Recovered from same sample as Z1C08. Complementary elements? Originally named by Branson and Mehl in 1951, this genus was reclassified by Begstrom and Sweet in 1966, (, pp 388-392, 428). I have not yet pinned down the exact species.
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