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Masonic Park aerial view
Image from County Well datebase linked from Minnesota Geological Survey website.*
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| Top row: 2 fragments of Receptaculites? and a trace fossil (on rt.). Lower row: 5 solitary rugose CORALS(Streptolasma?)*
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| TRILOBITE frag (Illaenus?); BRACHIOPOD on slab(unknown); GASTROPOD(Fusispira sp ?); BRACHIOPOD on slab (unknown);
right end of row, upper, BRACHIOPOD(Rafinesquina sp?) and, lower, (Platystrophia sp?)
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| GASTROPODS(planispiral) Maclurites crassus. Specimen in lwr lft corner is 6.5 cm wide.
Note: the 4 images are fossils collected by Gary & Nancy Heinzel, from 1975-2006 in Fillmore County, Minnesota. Initial i.d. of these superb specimens proudly attempted by Dean Kjerland. I will continue to refine the stratigraphy and the systematics...*
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| Upper row: GASTROPODS(conispiral): Hormotoma sp(2ea), Fusispira sp (2ea), Hormotoma sp (on slab - see it?).
Lower row Nautiloid CEPHALOPODS: Cyrtoceras sp?; unknown siphuncle; Staufferoceras sp?; "Spyroceras"?
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...details coming...
(all images courtesy of the Heinzel's)
Dsc01641
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| outcrop of the Upper ordovician Dubuque Formation(?) near Spring Valley, Minnesota
Dsc01635
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| Dsc01636
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| Dsc01637*
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| Dsc01640*
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Dsc01634
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| Dsc01626
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| Dsc01627*
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| Dsc01628*
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| Dsc01633
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Dsc01642*
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| Dsc01629
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| Dsc01631
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| Dsc01630*
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| Dsc01632*
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