Species

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Total: 60

species valid

Phytopsis cellulosa J. Hall Palaeontol. New York, 1(unknown): 39. 1847

species unavailable

Phytopsis tubulosa J. Hall Palaeontol. New York, 1(unknown): 38. 1847

species valid

Premnoxylon iowense R.L. Pierce, J.W. Hall Phytomorphology, 3(4): 389. Dec 1953

species unavailable

Salvinia aureovallis R.K. Jain, J.W. Hall Amer. J. Bot., 56(5): 537. 29 May 1969

species valid

Salvinia aureovallis R.K. Jain, J.W. Hall in J.W. Hall Taxon, 18(6): 735. Dec 1969

species valid

Salvinia spinata J.W. Hall, Bergad Micropaleontology, 1971, 17(3): 352. 26 Jan 1972

species valid

Sigillaria chemungensis J. Hall Geol. New York, 4: 274. 1843

species valid

Skolithos linearis J. Hall Palaeontol. New York, 1(unknown): 2. 1847

species valid

Sphenopteris fremontii J. Hall in Frém. Rept. Expl. Exped. Rocky Mts 304. Mar - Dec 1845

species unavailable

Sphenopteris laxa J. Hall Geol. New York, 4: 274. 1843

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