EVOLUTION AND ENVIRONMENT IN THE LATE SILURIAN EARLY DEVONIAN - THE RISE OF THE PTERIDOPHYTES

[51] Harland W. B., 1982, GEOLOGIC TIME SCALE

[52] PITTING IN PSILOPHYTON-DAWSONII, AN EARLY DEVONIAN TRIMEROPHYTE [J]. AMERICAN JOURNAL OF BOTANY, 1980, 67 (03) : 400 - 412

[53] Hebant C, 1977, CONDUCTING TISSUE BR

[54] Hoeg, 1942, NORGES SVALBARD ISHA, V83, P1

[55] HUEBER FM, 1983, BOT J LINN SOC, V86, P57, DOI 10.1111/j.1095-8339.1983.tb00717.x

[56] HUEBER FM, 1982, AM J BOT, V69, P58

[57] Jaeger H., 1966, Proceedings of the Royal Society of Victoria N S, V79, P393

[58] SILURIAN AND EARLY DEVONIAN GEOCHRONOLOGY - A REAPPRAISAL, WITH NEW EVIDENCE FROM THE BUNGONIA LIMESTONE [J]. ALCHERINGA, 1981, 5 (3-4): : 197 - 207

[59] KLITZSCH E, 1973, CR ACAD SCI D NAT, V277, P2465

[60] Knoll, 1980, EVOLUTIONARY BIOL, V12, P1

[51] Harland W. B., 1982, GEOLOGIC TIME SCALE

[52] PITTING IN PSILOPHYTON-DAWSONII, AN EARLY DEVONIAN TRIMEROPHYTE [J]. AMERICAN JOURNAL OF BOTANY, 1980, 67 (03) : 400 - 412

[53] Hebant C, 1977, CONDUCTING TISSUE BR

[54] Hoeg, 1942, NORGES SVALBARD ISHA, V83, P1

[55] HUEBER FM, 1983, BOT J LINN SOC, V86, P57, DOI 10.1111/j.1095-8339.1983.tb00717.x

[56] HUEBER FM, 1982, AM J BOT, V69, P58

[57] Jaeger H., 1966, Proceedings of the Royal Society of Victoria N S, V79, P393

[58] SILURIAN AND EARLY DEVONIAN GEOCHRONOLOGY - A REAPPRAISAL, WITH NEW EVIDENCE FROM THE BUNGONIA LIMESTONE [J]. ALCHERINGA, 1981, 5 (3-4): : 197 - 207

[59] KLITZSCH E, 1973, CR ACAD SCI D NAT, V277, P2465

[60] Knoll, 1980, EVOLUTIONARY BIOL, V12, P1