United States or Saint Pierre and Miquelon ? Vote for the TOP Country of the Week !
One- eighth diameter of original. a. Side view. b. Front view, showing mouth and bisulcated keel. Ammonites planorbis, Sowerby. One-half diameter of original. Nautilus truncatus, Sowerby. Ammonites bifrons, Brug. Ammonites Walcotti, Sowerby. Ammonites margaritatus, Montf. Syn. Ammonites Stokesi, Sowerby.
Schizodus Schlotheimi, Geinitz. The hinge of Schizodus truncatus, King. Mytilus septifer, King. Syn. Modiola acuminata, Sowerby. This formation is seen upon the coast of Durham and Yorkshire, between the Wear and the Tees. These shells occur at Hartlepool and Sunderland, where the rock assumes an oolitic and botryoidal character. Some of the beds in this division are ripple-marked.
Word Of The Day