Where: Nord-Trondelag, Norway (63.9° N, 10.9° E: paleocoordinates 54.0° N, 16.2° E)
• coordinate stated in text
• small collection-level geographic resolution
When: Bajocian to Bajocian (170.3 - 166.1 Ma)
• "Of the seven cuticles here described, four have been identified with species from the Deltaic Series of Yorkshire, indicating that the age is almost the same." (Abstract, p. 193). Hence my estimate of Bajocian-Bathonian stage assignments.
Environment/lithology: terrestrial; coal and sideritic siliciclastic
Size class: macrofossils
Preservation: adpression, coalified, original carbon, replaced with siderite
Collection methods: surface (float), chemical,
• "The flora appears to be peculiar in its strong xeromorphy" (p. 213)
Primary reference: J.O. Vigran. 1970. Fragments of a Middle Jurassic flora from Northern Trondelag, Norway. Norsk Geologisk Tidsskrift 50:193-214 [A. Rees/A. Rees/A. Rees]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 24611: authorized by Allister Rees, entered by Allister Rees on 11.08.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Polypodiopsida | |
Elatocladus areolatus podocarp | |
Cycadopsida | |
Pseudoctenis "sp. A" Seward 1911 cycads | |
"Nilssonia "sp. B"" = Nilsonia
"Nilssonia "sp. B"" = Nilsonia Brongniart 1825 cycads | |
Deltolepis lanata cycads | |
Ginkgoopsida | |
Ginkgo huttoni Sternberg 1833 ginkgo |