Where: Spitsbergen, Norway (78.1° N, 18.8° E: paleocoordinates 69.4° N, 17.4° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Slottsmøya Member (Agardhfjellet Formation), Tithonian (152.1 - 145.0 Ma)
• Upper part of the Slottsmøya Member, Agardhfjellet Formation, Janusfjellet, Middle Volgian (Tithonian; Nagy & Basov, 1998; Collignon & Hammer 2012; Gradstein et al. in press).
•From either the Dorsoplanites maximus or D. ilovaiskyi zone, corresponding to the Middle Volgian.
•The stratigraphic occurrence of the 1976 specimen (PMO 218.377) was also unknown. δ13C analyses of shale collected along with the specimen were compared with the δ13C curve for the entire Slottsmøya Member (see Collignon & Hammer, this volume). The results of this analysis indicate that this specimen was either found between 31-22 metres or 15-11 metres below the Dorsoplanites Bed (Collignon & Hammer, this volume).
Environment/lithology: deep-water; concretionary, sideritic, black, gray, silty mudstone
Size class: macrofossils
Collected by an expedition from the Norwegian Polar Institute, led by Mark Edwards in 1976
Collection methods: surface (in situ),
• PMO, Natural History Museum, University of Oslo collection
Primary reference: E. M. Knutsen, P. S. Druckenmiller, and J. Hurum. 2012. Redescription and taxonomic clarification of ‘Tricleidus’ svalbardensis based on new material from the Agardhfjellet Formation (Middle Volgian). Norwegian Journal of Geology 92:175-186 [R. Benson/R. Benson]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 134740: authorized by Roger Benson, entered by Roger Benson on 15.10.2012
Creative Commons license: CC BY (attribution)