Dorset a number of small rivers run into the sea along the Dorset coastline; most notable of these are the Char, Brit, Bride and Wey. Most of Dorset's coastline is part of the Jurassic Coast, a World Heritage Site, which stretches for between Studland and Exmouth in Devon. This coast documents the entire Mesozoic era, from Triassic to Cretaceous and is noted for its geological landforms. The Dorset section has yielded important fossils, including Jurassic trees and the first complete Ichthyosaur, discovered near Lyme Regis in 1811 by Mary Anning. The county features some notable coastal landforms, including examples of a
History of Dorset Dorset for 200 years after the withdrawal of the Roman legions. The inhospitable coastline prevented an invasion from the sea. When the Roman road across Cranborne Chase was rebuilt in the 6th century the Saxons advanced into Dorset. The Romano-British retreated, constructing another defence, Combs Ditch, which also fell within a century. It is thought that the Saxons captured east Dorset in the mid-7th century and west Dorset shortly afterwards, but the details are not known. Dorset was initially part of Saxon Wessex, with the first record of Dorset being in 841. Coenred, the sub-king of Dorset at the end