Specimens of the graptolite, Monograptus scanicus, obtained from Silurian limestone boulders in Pleistocene deposits of the north German plain, allow a more accurate description of the thecal structure of the species. The thecae terminate in a pair of laterally placed, expanded lappets which are elongate ovid in shape, with the long axes perpendicular to the axis of the theca.

GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States