Found 8 results
Filters: Author is Gray, J.  [Clear All Filters]
1990
L. E. Babcock, Gray, J., Boucot, A., Himes, G. T., and Siegele, P. K., “1ST SILURIAN CONULARIIDS FROM PARAGUAY”, Journal of Paleontology, vol. 64, pp. 897-902, 1990.
1989
J. Gray and Boucot, A., “IS MOYERIA A EUGLENOID”, Lethaia, vol. 22, pp. 447-456, 1989.
1983
A. Boucot and Gray, J., “A PALEOZOIC PANGAEA”, Science, vol. 222, pp. 571-581, 1983.
1982
G. Laubacher, Boucot, A., and Gray, J., “ADDITIONS TO SILURIAN STRATIGRAPHY, LITHOFACIES, BIOGEOGRAPHY AND PALEONTOLOGY OF BOLIVIA AND SOUTHERN PERU”, Journal of Paleontology, vol. 56, pp. 1138-1170, 1982.
1980
J. Gray and Boucot, A., “MICRO-FOSSILS AND EVIDENCE OF LAND PLANT EVOLUTION”, Lethaia, vol. 13, pp. 174-174, 1980.
1979
J. Gray and Boucot, A., “DEVONIAN LAND PLANT PROTOSALVINIA”, Lethaia, vol. 12, pp. 57-63, 1979.
1977
J. Gray and Boucot, A., “EARLY VASCULAR LAND PLANTS - PROOF AND CONJECTURE”, Lethaia, vol. 10, pp. 145-174, 1977.
1974
J. Gray, Laufeld, S., and Boucot, A., “SILURIAN TRILETE SPORES AND SPORE TETRADS FROM GOTLAND - THEIR IMPLICATIONS FOR LAND PLANT EVOLUTION”, Science, vol. 185, pp. 260-263, 1974.