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as Panthera leo spelaea
and even smaller members of its own kind
" represent an extinct lineage of aquatic arthropods classified within the order Eurypterida
Cenoceras sp
This environment supported other megafauna such as woolly mammoths
Stunning Glass Selenite | Utah shark teeth as Panthera leo spelaeaStunning Glass Selenite from South Central Utah, Wayne County USA Approx. dimensions: 9" x 10" x 1. 5" Approx. weight: 6 lbs. 11 oz. Selenite, satin spar, desert rose, gypsum flower are crystal habit varieties of the mineral gypsum. All varieties of gypsum, including selenite and alabaster, are composed of calcium sulfate dihydrate, with the chemical formula CaSO2HO.
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