Glenwood, Platteville, Decorah, and Galena conodonts of Southeastern Minnesota (Ordovician to of the United States)

Where: Fillmore, Olmstead County, Minnesota (44.7° N, 92.3° W: paleocoordinates 18.5° S, 62.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Glenwood, Platteville, Decorah Formation (Galena Group), Blackriveran to Blackriveran (460.9 - 449.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: limestone and shale

• Environmental call by T. Hanson.

Size class: microfossils

Collection methods: chemical,

Primary reference: W. F. Rice and E. P. Hedblom. 1987. Brachiopods and trilobites of the Sardeson Beds in the Twin Cities. Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 131-135 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 23298: authorized by Steven Holland, entered by Tori Hanson on 11.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Tetraprioniodus breviconus
"Tetraprioniodus" breviconus
Conodonta
 Conodontophorida -
Protopanderodus liripipus Kennedy et al. 1979 conodont
Oistodus venustus conodont
"Oistodus" venustus
Oneotodus ovatus conodont
"Oneotodus" ovatus
 Belodellida - Dapsilodontidae
Dapsilodus mutatus Branson and Mehl 1933 conodont
 Panderodontida - Panderodontidae
Belodina compressa Branson and Mehl 1933 conodont
Belodina confluens Sweet 1979 conodont
Panderodus feulneri Glenister 1957 conodont
Panderodus gracilis Branson and Mehl 1933 conodont
Panderodus panderi Stauffer 1940 conodont
 Ozarkodinida -
Periodon grandis Ethington 1959 conodont
 Prioniodontida -
 Prioniodontida - Balognathidae
 Protopanderodontida -
Drepanoistodus suberectus Branson and Mehl 1933 conodont