Where: Gotland, Sweden (57.1° N, 18.2° E: paleocoordinates 16.9° S, 2.3° W)
• coordinate based on unpublished field data
• outcrop-level geographic resolution
When: Polygnathoides siluricus conodont zone, När Formation (Hemse Group), Ludfordian (425.6 - 423.0 Ma)
• formation-level stratigraphic resolution
Environment/lithology: deep subtidal; lithified lime mudstone
Size class: microfossils
Preservation: original phosphate
Collection methods: chemical, acetic, sieve,
Primary reference: L. Jeppsson. 1983. Silurian conodont faunas from Gotland. Fossils and Strata 15:121-144 [E. Jarochowska/E. Jarochowska]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 184646: authorized by Emilia Jarochowska, entered by Emilia Jarochowska on 15.03.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Conodonta | |
Panderodus unicostatus Branson and Mehl 1933 conodont
Panderodus gracilis Branson and Mehl 1933 conodont | |
Coryssognathus dubius Wang 1980 conodont
Distomodus dubius conodont | |
Pseudooneotodus beckmanni Bischoff and Sannemann 1958 conodont | |
Ozarkodina confluens Rhodes 1953 conodont | |
Wurmiella excavata Branson and Mehl 1933 conodont |