On the radial pitting in Callixylon

[1] Special articles - Some Devonian plant localities of central and western New York [J]. SCIENCE, 1928, 67 : 276 - 277

[2] STRUCTURE, DEVELOPMENT, AND DISTRIBUTION OF-SO-CALLED RIMS OR BARS OF SANIO [J]. BOTANICAL GAZETTE, 1919, 67 (06): : 449 - +

[3] ELKINS MG, 1914, AM J SCI, V188, P65

[4] HYLANDER CJ, 1922, AM J SCI, V204, P315

[5] NEWBERRY JS, 1889, J CINCINNATI SOC NAT, V12, P53

[6] SEWARD AC, 1917, FOSSIL PLANTS, V3, P292

[7] ZALESSKY MD, 1911, COM GEOLOG RUSSE, V68, P29

[1] Special articles - Some Devonian plant localities of central and western New York [J]. SCIENCE, 1928, 67 : 276 - 277

[2] STRUCTURE, DEVELOPMENT, AND DISTRIBUTION OF-SO-CALLED RIMS OR BARS OF SANIO [J]. BOTANICAL GAZETTE, 1919, 67 (06): : 449 - +

[3] ELKINS MG, 1914, AM J SCI, V188, P65

[4] HYLANDER CJ, 1922, AM J SCI, V204, P315

[5] NEWBERRY JS, 1889, J CINCINNATI SOC NAT, V12, P53

[6] SEWARD AC, 1917, FOSSIL PLANTS, V3, P292

[7] ZALESSKY MD, 1911, COM GEOLOG RUSSE, V68, P29