Where: Gotland, Sweden (57.2° N, 18.3° E: paleocoordinates 16.8° 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• coordinate based on unpublished field data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)
• Hemse Beds, Hemse Marl, southeastern part. Conodonts agree well with the P. siluricus Zone, although the collection is too small to yield P. siluricus itself.
• formation-level stratigraphic resolution
Environment/lithology: lithified marl
Size class: microfossils
Preservation: original phosphate
Collection methods: acetic, sieve
Primary reference: L. Jeppsson. 2005. Conodont-based revisions of the Late Ludfordian on Gotland, Sweden. Gff 127(4):273-282 [E. Jarochowska/E. Jarochowska]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 184336: authorized by Emilia Jarochowska, entered by Emilia Jarochowska on 21.02.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Conodonta | |
Coryssognathus dubius Wang 1980 conodont |