One of the best-known of these is the Ludlow Bone Bed, which is found at the base of the Downton Sandstone in the Upper Ludlow series.
At Ludlow itself, two such beds are actually known, separated by about 14 ft.
Although quite thin, the Ludlow Bone Bed can be followed from that town into Gloucestershire for a distance of 45 m.
He served part of his time as midshipman with Rodney in the "Ludlow," and became lieutenant in 1746.
Dayton's site was purchased in 1795 from John Cleves Symmes by a party of Revolutionary soldiers, and it was laid out as a town in 1796 by Israel Ludlow (one of the owners), by whom it was named in honour of Jonathan Dayton (1760-1824), a soldier in the War of Independence, a member of Congress from New Jersey in 1791- ' 799, and a United States senator in 1799-1805.