[1] With an approximate width of 400 kilometres (250 mi) between present mainland Norway and the Shetland Platform, the continental post-rift basin contains the Teist, Lomvi and Lunde Formations, and lasted throughout the Triassic until the final depositional stages of the overlying latest Triassic to Early Jurassic Statfjord Formation, when the whole area was flooded during a marine transgression from the north and south in late Sinemurian to early Pliensbachian times.

[1] The climate during deposition of the Lunde Formation was semiarid and highly seasonal, typical for the contemporary palaeogeographic position at 40-50 degrees North paleolatitude.

[1] The basin was linked to a marine borealic seaway, probably located some tens to hundreds of kilometers to the north and to provenance areas composed of Archean gneisses, Caledonian metamorphic rocks and Devonian sandstones.

The paleosol type is similar to modern vertisols forming in semi-arid areas with seasonal precipitation, commonly with dry periods lasting 4–8 months.

The presence of root traces suggests that the floodplain was covered with small trees and bushes, vegetation suitable for herbivorous animals living on the alluvial plain.