Crossword-Solution: MARLS 5 letters, 16 clues 🏆 scrabble score: 7

Owen, in a communication to the British Association at Cambridge (1862) "On a tooth of Mastodon from the Tertiary marls, near Shanghai," brought forward the case of the Australian Mastodon as a proof of the remarkable geographical distribution of the Proboscidia.

The surface of these table-heights is hard for a depth of about six feet, forming an upper stratum of rock which can be used for building; beneath this are marls and friable cretaceous stone, which during rains are washed away.

The path became worse as we proceeded, and we at length emerged from the long string of contracted villages and skirted the precipitous sides of the ravine, which formed one of the innumerable gorges between the conical mounds of marls and alluvium that had been washed from a higher level and worn into heaps by the action of rain upon the unstable surface.

The soil was a rich reddish chocolate, forming a grateful contrast to the glaring white marls that we had just quitted, and which composed the steep hills that surrounded the lower basin.

Eruptive rocks had burst through the marls and calcareous sedimentary limestone of the coast and had produced very curious examples of metamorphous rocks, where the marls and limestone had been in immediate contact with the plutonic.