Geology of Greenland Survey Bulletin 182 - 1999
Vertebrate remains from Upper Silurian - Lower Devonian beds of Hall Land, North Greenland
Transitional scale of Thulolepis striaspina gen. et sp. nov., a new small thelodont species from the lowermost Devonian of North Greenland. SEM photograph of the holotype, MGUH VP 3510, found in an acetic acid residue of GGU sample 319264. The sample is from a limestone bed in the Chester Bjerg Formation at the top of Monument, an inselberg-like hill in central Hall Land.