A block showing in vertical section (top) the upper part of the single vertical shafts with the diagnostic funnel-shaped enlargement of the mouths of the burrows. Three complete funnels and parts of others are visible on the vertical surface. On the top horizontal surface (facing) five complete craters where sediment has collapsed into the M. burrows. (This surface is shown in TRF 14.01). The burrows are in excellent negative relief; the lack of erosion, and consequent preservation of the funnels is rare in the high-energy Skolithos facies. From Nathorst Bjerg, Jameson Land, Greenland.
Size: 115 mm x 55mm x 80mm
Size: 115 mm x 55mm x 80mm