555. ——. 1888. On some additional Labyrinthodont fossils from the Hawksbury sandstone of New South Wales. Proc. Linn. Soc. New South Wales, I (2), 1175-1192.
556. ——. 1888. Note on a Labyrinthodont fossil from Cockatoo Island (Mastodonsaurus). Proc. Linn. Soc. New South Wales (2), I, 931-940.
557. ——. 1888. Second note on Platyceps wilkinsoni. Proc. Linn. Soc. New South Wales, II (2), 156-158, pl. i.
558. Sternberg, C. H. 1901. The Permian life of Texas. Trans. Kans. Acad. Sci., 94-98.
559. Stevenson, J. J. 1907. Carboniferous of the Appalachian basin. Bull. Geol. Soc. Amer., XVIII, 29-178.
560. Storrie, J. 1893-4. Notes on a tooth of a species of Mastodonsaurus. Trans. Cardif. Nat. Soc., XXVI, pt. II, 105, pl.
561. Stock, Thomas. 1881. On some British specimens of the "Kammplatten" or "Kammleisten" of Professor Fritsch. Ann. and Mag. Nat. Hist., 5th ser., VIII, 90-95, pl. vi.
562. ——. 1882. Notice of some discoveries recently made in Carboniferous vertebrate paleontology. Nature, XXVII, Nov. 2d, 22. [Describes new species of Ophiderpeton (nanum) and Pteroplax (cornuta).]
563. ——. 1882. Further observations on Kammplatten and Note on Ctenopthychius pectinatus. Ann. and Mag. Nat. Hist. (5), IX, 253-257, pl. viii.
564. Strickler, Ludwig. 1899. Ueber den microscopischen Bau der Fältenzähne von Eryops megacephalus. Paleontographica, XLVI, 85-94, 1 fig., Tafeln xi-xii.