A new fern from the Johns Valley Shale of Oklahoma

[1] BERTRAND P, 1912, PROGR BOT, V4, P182

[2] BERTRAND P, 1909, THESIS LILLE

[3] BERTRAND PAUL, 1933, BULL SOC BOT FRANCE, V80, P527

[4] BROWNE IMP, 1935, BOT REV, V1, P427

[5] On the structure and affinities of Ankyropteris corrugata [J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-CONTAINING PAPERS OF A BIOLOGICAL CHARACTER, 1930, 218 : 79 - 113

[6] Scotland-Coogan D., 2022, Society & Animals, V30, P547, DOI 10.1163/15685306-00001682

[7] On a palaeozoic fern, the Zygopteris Grayi of Williamson. [J]. ANNALS OF BOTANY, 1912, 26 (101-4) : 39 - 69

[1] BERTRAND P, 1912, PROGR BOT, V4, P182

[2] BERTRAND P, 1909, THESIS LILLE

[3] BERTRAND PAUL, 1933, BULL SOC BOT FRANCE, V80, P527

[4] BROWNE IMP, 1935, BOT REV, V1, P427

[5] On the structure and affinities of Ankyropteris corrugata [J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-CONTAINING PAPERS OF A BIOLOGICAL CHARACTER, 1930, 218 : 79 - 113

[6] Scotland-Coogan D., 2022, Society & Animals, V30, P547, DOI 10.1163/15685306-00001682

[7] On a palaeozoic fern, the Zygopteris Grayi of Williamson. [J]. ANNALS OF BOTANY, 1912, 26 (101-4) : 39 - 69