The shoot apex of Callistophyton poroxyloides T. Delevoryas, “The shoot apex of Callistophyton poroxyloides”, Contributions from the museum of paleontology, University of Michigan, vol. 12, no. 15, pp. 285-299, 1956. Read more about The shoot apex of Callistophyton poroxyloidesAdd new commentGoogle ScholarBibTeXRTFMARCEndNote XMLRIS
A New Pteridosperm from Upper Pennsylvanian Deposits of North America T. Delevoryas and Morgan, J., “A New Pteridosperm from Upper Pennsylvanian Deposits of North America”, Palaeontographica Abtheilung B, vol. 96, no. 1-2, pp. 12-23, 1954. Read more about A New Pteridosperm from Upper Pennsylvanian Deposits of North AmericaAdd new commentGoogle ScholarBibTeXRTFMARCEndNote XMLRIS