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Traits source details
Webster, G. D. 1997. Lower Carboniferous echinoderms from northern Utah and western Wyoming. Bulletin Utah Geological Survey 128, 1-65.
176175
Webster, G. D.
1997
Lower Carboniferous echinoderms from northern Utah and western Wyoming
Bulletin Utah Geological Survey
128: 1-65
Publication
Date action by
Aarchaeocidaris Webster, 1997 † accepted as Palaechinus McCoy, 1844 † (original description)
Aarchaeocidaris strawberryensis Webster, 1997 † (original description) |