Where: Iowa (42.1° N, 91.1° W: paleocoordinates 20.1° S, 56.7° W)
• coordinate estimated from map
When: Pterospathodus celloni conodont zone, LaPorte City Formation, Llandovery (443.4 - 433.4 Ma)
• Sample (m) 4,59-4,61
Environment/lithology: lithified, cherty/siliceous limestone
•The BCQ is exposed at the base of the DX5 outcrop and is a bio-dolo-wackestone with occasional chert nodules. The base of the LPC is marked by thinly bedded chert, overlain by a bed of slightly dolomitized crinoidal wackestone with chert nodules (Figure 6).
Size class: microfossils
Primary reference: C. B. T. Waid and B. D. Cramer. 2017. Telychian (Llandovery, Silurian) conodonts from the LaPorte City Formation of eastern Iowa, USA (East-Central Iowa Basin) and their implications for global Telychian conodont biostratigraphic correlation. Palaeontologia Electronica 20(2):1-37 [P. Wagner/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 191084: authorized by Emilia Jarochowska, entered by Sarah Haegele on 08.01.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Conodonta | |
Pterospathodus amorphognathoides Walliser 1964 conodont Subspecies"Pterospathodus amorphognathoides angulatus"
| |
Panderodus sp. Ethington 1959 conodont
Panderodus unicostatus Branson and Mehl 1933 conodont
Panderodus greenlandensis Armstrong 1990 conodont | |
"Ozarkodina polinclinata" = Wurmiella polinclinata
"Ozarkodina polinclinata" = Wurmiella polinclinata Nicoll and Rexroad 1968 conodont Subspecies"Ozarkodina polinclinata polinclinata"
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