The Coal Measures Amphibia of North America

by Roy Lee Moodie

All three of these forms are included, provisionally, under the Cocytinidæ.

Fig. 16. Obverse of Cocytinus gyrinoides Cope, from the Coal Measures of Ohio. × 2. pmx, premaxillæ: mx, maxilla; m, mandible; ah, axialhyal; h, basal branchihyal; ch, ceratohyal; bv, hæmal branchihyal; b, bII, bIII, bIIII, pleural branchihyals.

Cocytinus gyrinoides Cope.

Cope, Proc. Am. Phil. Soc., XII, p. 177, 1871.

Cope, Trans. Am. Phil. Soc., p. 278, 1874.

Cope, Geol. Surv. Ohio, II, pt. II, pp. 364-365, pl. xxxix, fig. 4, 1875.

Type: Specimen No. 8613 G, American Museum of Natural History.

Horizon and locality: Linton, Ohio, Coal Measures.