Dicroidium odontopteroids (Morris), 75mm seed fern foliage with characteristic bifurcations. M Triassic, Blackstone Fm, Dinmore
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Canoes near Blackstone Point.jpg
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Broadhead drain, Blackstone edge
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Glacier Meeting Blackstone Bay
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Museum Campus view from the Presidential Suite, Blackstone Hotel, Fall Colors, Chicago Open House 2014
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