Lasanius
Lasanius is a genus of basal anaspida from the Early Silurian. Its fossils are around 10 mm to 150 mm in length. Fossils have been found in Early Silurian-aged strata in Ayrshire, Muirkirk, Scotland and Seggholm. References. R.H. Traquair M.D. LL.D. F.R.S. (1898) IX.—"Notes on Palœozoic fishes."—No. II, Annals and Magazine of Natural History, 2:7, 67–70, Traquair, R. (1899). XXXII.—Report on Fossil Fishes collected by the Geological Survey of Scotland in the Silurian Rocks of the South of Scotland. "Transactions of the Royal Society of Edinburgh," "39"(3), 827–864.