Evidence is presented to substantiate earlier statements of the writer that the age of the Woodbine is, for the most part at least, equivalent to the Cenomanian of Europe, and that its affinities are with the Comanchean rather than with the Gulf; that the Upper Grayson in northern Texas, except under certain conditions, is identical in time with the Buda of central Texas; that the disconformity between the Washita and the Woodbine appears to be only local; that the latter formation is regressive, as shown by impure waters, highly colored sands, gypsum and other salts, clays at the base, ripple marks, and a "bone bed" at the summit, etc.; that there is disconformity between the Woodbine and the Eagle Ford; that the "bone bed" at the top of the Woodbine is continuous into c ntral Texas; that it is a part of the Eagle Ford transgression, and therefore referable to the latter formation; that the age of this "bone bed" in northern Texas is equivalent to the Middle Cenomanian, and in central Texas to the Middle Turonian of Europe; and that equivalents of all of the Cenomanian and the lower half of the Turonian are missing in central Texas in the region of Austin.

It is suggested that the regressive origin of the Woodbine may have an important bearing on the accumulation of its oil.