Glossochelys is an extinct genus of sea turtles from the Pancheloniidae that has been discovered in Eocene (Ypresian) deposits in Harwich, England (London Clay Formation) that was first described as a species of Lytoloma in 1842.R. Owen. (1841). Description of the remains of six species of marine turtles (Chelones) from the London Clay of Sheppy and Harwich. Proceedings of the Geological Society of London 3 part 2(83):565-578 The type species, G. planimentum, was described as a separate species in 1871 by Harry Seeley.Seeley, Harry G. - Continued. (1871). A Note on Professor Cope's interpretation of the ichthyosaurian head. Ann and Mag. Nat. Hist. (4) vii, pp. 256-268: 369 It was possibly the same animal as Euclastes or Erquelinnesia.E. D. Cope. (1870). Synopsis of the Extinct Batrachia, Reptilia and Aves of North America. Part II. Transactions of the American Philosophical Society, New Series 14:105-235
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