Iron Cake site, northern flank of Macknight Bjerg (Triassic of Greenland)

Also known as area V

Where: Greenland (71.4° N, 22.6° W: paleocoordinates 45.4° N, 2.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Malmros Klint Formation (Fleming Fjord Group), Norian (228.0 - 208.5 Ma)

• uppermost part of Malmros Klint Fm.; according to the age model of Kent and Clemmensen

•(2021), this site has an age of 214 Ma (mid Norian)

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - large; red mudstone and bioturbated, calcareous sandstone

• "ephemeral lake system with intermittent wave reworking of the sand flats, indicative of a dry climate with seasonal rainfall"
• Upper unit is clay-rich. Member has composite cyclicity from basal siltstone through sandstones, the top being a well-developed paleosol that is enriched in calcite or dolomite and has well-developed dessication cracks. Sandstones are typically bioturbated with local calcite nodules. Flat-pebble conglomerates top the paleosols, with intraformational mud clasts and vertebrate fragments.

Size class: macrofossils

Collected in 1991, 1995, 2012

Collection methods: quarrying, mechanical,

Primary reference: F. A. Jenkins, N. H. Shubin, W. W. Amaral, S. M. Gatesy, C. R. Schaff, L. B. Clemmensen, W. R. Downs, A. R. Davidson, N. Bonde and F. Osbaeck. 1994. Late Triassic continental vertebrates and depositional environments of the Fleming Fjord Formation, Jameson Land, East Greenland. Meddelelser om Grønland, Geoscience 32:1-25 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 26996: authorized by Matthew Carrano, entered by Matthew Carrano on 11.11.2002, edited by Bethany Allen and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Amphibia
 Temnospondyli - Mastodonsauridae
"Capitosauridae indet." = Mastodonsauridae2
"Capitosauridae indet." = Mastodonsauridae2 Lydekker 1885 tetrapod
Fragmentary skull and associated mandibular ramus
Reptilia
 Saurischia - Plateosauridae
Issi saaneq n. gen. n. sp.1
Issi saaneq n. gen. n. sp.1 Beccari et al. 2021 plateosaurid
skull, MCZ field no. 61/91G
1Beccari et al. 2021; 2Marzola et al. 2017