A heterosporous species of Bowmanites from the Michigan coal basin

[1] BINNEY EW, 1870, PALEONT SOC LONDON, V24, P33

[2] EAMES A. J., 1936, MORPHOLOGY VASCULAR

[3] Hirmer M., 1927, HDB PALAOBOTANIK

[4] Hoskins J. H., 1943, AMER MIDLAND NAT, V30, P113, DOI 10.2307/2421267

[5] KELLY WA, 1936, DEP CONSER PUBL 34, V40, P155

[6] RENAULT MB, 1876, ANN SOC NAT BOT 6, V4, P277

[7] Scott DH, 1920, STUDIES FOSSIL BOT, V1

[8] SEWARD AC, 1898, FOSSIL PLANTS, V1

[9] Thoday D., 1906, NEW PHYTOL, V5, P91

[10] Walton J., 1940, INTRO STUDY FOSSIL P

[1] BINNEY EW, 1870, PALEONT SOC LONDON, V24, P33

[2] EAMES A. J., 1936, MORPHOLOGY VASCULAR

[3] Hirmer M., 1927, HDB PALAOBOTANIK

[4] Hoskins J. H., 1943, AMER MIDLAND NAT, V30, P113, DOI 10.2307/2421267

[5] KELLY WA, 1936, DEP CONSER PUBL 34, V40, P155

[6] RENAULT MB, 1876, ANN SOC NAT BOT 6, V4, P277

[7] Scott DH, 1920, STUDIES FOSSIL BOT, V1

[8] SEWARD AC, 1898, FOSSIL PLANTS, V1

[9] Thoday D., 1906, NEW PHYTOL, V5, P91

[10] Walton J., 1940, INTRO STUDY FOSSIL P