1929–2017
On June 29, 2017, we lost an eminent member of our paleobotanical community with the death of Dr. Theodore (Ted) Delevoryas. Ted was born on July 22, 1929 in Chicopee Falls, Massachusetts, U.S.A., and received his undergraduate degree at the University of Massachusetts (1950) and his Master’s Degree (1951) and Ph.D. (1954) at the University of Illinois, Urbana–Champaign. After graduate school, he taught as an Assistant Professor at Michigan State University for one year (1955–1956) before moving to Yale University in New Haven, Connecticut, where he was an instructor from 1956–1958 and Assistant Professor from 1958–1960. After a two-year stint (1960–1962) as an Associate Professor at the University of Illinois, he returned to Yale as an Associate Professor and later became a full Professor, with a joint appointment as an Associate Curator of Paleobotany at Yale’s Peabody Museum. In 1972, he accepted a position as Professor of Botany at The University of Texas at Austin.
Ted’s research specialty was Mesozoic fossil plants, primarily ferns, conifers, and cycads, on which he published over 100 scholarly articles (see list below). The ability to recognize and identify ancient plant fossils required an intimate knowledge of their anatomy and morphology, which Ted demonstrated in his beautiful drawings that were incorporated in his influential books on the Morphology and Evolution of Fossil Plants (1962), and Plant Diversification (1966), as well as in the book he co-authored with Professors Harold Bold and Constantine Alexopolous, the Morphology of Plants and Fungi (1980). During his career, Ted mentored four Masters students, eight Ph.D. students, and four postdocs. Many have become productive mentors and paleobotanical researchers themselves, and two of them were elected members of the National Academies of Sciences. His academic family honored him in 2010 with a festschrift entitled Plants in Mesozoic Time: Morphological Innovations, Phylogeny, Ecosystems.
The esteem in which he was held by his colleagues resulted in an award of a John Guggenheim Fellowship in 1964 and election as a Fellow of the U.S. National Research Council (1954–1955), the Linnaean Society of London (1975), the Paleobotanical Society of Lucknow, India, and the American Association for the Advancement of Science (1990). In 1978, he was named Distinguished Fellow of the Botanical Society of America. Along with other botanists, Ted was awarded the Centennial Award of the Botanical Society of America in 2006 for his outstanding service to the plant sciences and to the Society.
Ted took his position of university professor seriously at The University of Texas at Austin, and he was happy to take on the responsibility of furthering the success of colleagues, faculty, and students. Ted exemplified this sense of duty when he served as Department of Botany’s Chairman (1974–1980) during which he hired numerous well-known botanists who contributed to the department’s rise and continued the work begun by Gordon Whaley and Billie Lee Turner to make it the premier botany department in the country. Ted also took on the responsibility of Chairman of the Division of Biological Sciences at U.T. Austin from 1974–1980 and for a short period was Acting Director of The University of Texas’ Marine Science Institute at Port Aransas. He was similarly influential in the plant sciences community as a whole, serving as President of the Botanical Society of America in 1974, President of the International Organisation of Palaeobotany (1978–1981), member of the Editorial Board for the American Institute for Biological Sciences’ journal Bioscience (1977), and as Editor-in-Chief of the American Journal of Botany (1985–1989).
Rigorous in teaching, particularly his courses on paleobotany and survey of the plant kingdom, Ted inspired his students and earned their love and respect. The students showed their appreciation of Ted by serving his favorite dessert, strawberry shortcake with ripe strawberries and whipped cream, at the last paleobotany lab session of the semester, despite it being late December. A highlight of the paleobotany class was the annual field trip to the Marshall clay pit in east Texas, where the students experienced first-hand the joy of field paleontology and the thrill of discovering Eocene angiosperm leaves. Ted retired as a full time faculty member from U.T. Austin in 1995 and became Professor Emeritus in 1998.
Ted settled down to retirement life in Encinitas, California, where he made sure he always had a view of the ocean. He continued to challenge his mind and sought learning throughout his life. He taught himself Spanish, French, and German, believing that textbooks would provide insufficient insight into the development and culture of each language. Ted could often be found working a New York Times crossword puzzle, playing Scrabble, reading a book, or enjoying classical music. He particularly liked the quartet compositions of Mozart, Bach, and Beethoven, and at age 72, took up the cello which he was able to enjoy playing throughout his retirement. He also loved sailing, collecting Mexican art, and had an amazing collection of live cycads.
Ted was known for his gentle nature and wit, and he had a way of making people laugh and putting a smile on their faces. He was a man of good humor and modesty, as well as a botanist par excellence, an avid field scientist, and a dedicated and scholarly paleobotanist. Ted passed away peacefully in his sleep in Austin, Texas, at age 87. As he would have put it, he lived a long, great life. Ted is survived by his siblings Lillian (now deceased) and Mark Delevoryas, his sons, Matt and Chris Delevoryas, his stepchildren Marlena, Michael, and Melanie, his grandchildren, several nieces and nephews, and his ex-spouses Nancy Delevoryas and Cecilia Dean.
Compiled by Beryl Simpson and Cecilia Dean, with contributions from Norma Fowler, Robert Jansen, Melanie Rierson, and Carole Gee
For more about Ted, see:
Gee, C.T. (ed.). 2010. Plants in Mesozoic Time: Morphological Innovations, Phylogeny, Ecosystems. Indiana University Press, Bloomington, Indiana, 424 pp. (Ted Delevoryas festschrift)
Statesman.com obituary. Ted Delevoryas 1929–2017. . https://www.legacy.com/obituaries/name/ted-delevoryas-obituary?pid=186026881.
Taylor, T.N., E.L. Taylor, and C.P. Daghlian. 2010. The career of Ted Delevoryas: Appreciation and publications, pp. xix–xxvi. In: C.T. Gee (ed.), Plants in Mesozoic Time: Morphological Innovations, Phylogeny, Ecosystems. Indiana University Press, Bloomington, Indiana. (Ted Delevoryas festschrift)
Publications of Ted Delevoryas
Stewart, W., and T. Delevoryas. 1952. Bases for determining relationships among the Medullosaceae. American Journal of Botany 39(7): 505–516.
Morgan, J., and T. Delevoryas. 1952. Stewartiopteris singularis: a new psaroniaceous fern rachis. American Journal of Botany 39(7): 479–497.
Morgan, J., and T. Delevoryas. 1952. An anatomical study of Stipitopteris. American Journal of Botany 39(7): 474–478.
Delevoryas, T., and J. Morgan. 1952. Tubicaulis multiscalariformis: A new American coenopterid. American Journal of Botany 39(3): 160–166.
Delevoryas, T. 1953. A new male cordaitean fructification from the Kansas Carboniferous. American Journal of Botany 40: 144–150.
Delevoryas, T. 1954. The Medullosae—structure and relationships. Ph.D. Dissertation, University of Illinois, Urbana–Champaign, Illinois, 171 pp.
Morgan, J., and T. Delevoryas. 1954. An anatomical study of a new coenopterid and its bearing on the morphology of certain coenopterid petioles. American Journal of Botany 41(3): 198–203.
Delevoryas, T., and J. Morgan. 1954. A new pteridosperm from Upper Pennsylvanian deposits of North America. Palaeontographica 96, Abt. B: 12–23.
Delevoryas, T., and J. Morgan. 1954. A further investigation of the morphology of Anachoropteris clavata. American Journal of Botany 41(3): 192–203.
Delevoryas, T., and J. Morgan. 1954. Observations on petiolar branching and foliage of an American Botryopteris. American Midland Naturalist 52(2): 374–387.
Delevoryas, T. 1955. A Palaeostachya from the Pennsylvanian of Kansas. American Journal of Botany 42(6): 481–488.
Delevoryas, T. 1955. The Medullosae—structure and relationships. Palaeontographica 97, Abt. B: 115–167.
Stewart, W.N., and T. Delevoryas. 1956. The Medullosan pteridosperms. Botanical Review 22(1): 45–80.
Delevoryas, T. 1956. The shoot apex of Callistophyton poroxyloides. Contributions from the Museum of Paleontology, University of Michigan 12(15): 285–299.
Delevoryas, T. 1957. Anatomy of Sigillaria approximata. American Journal of Botany 44(8): 654–660.
Delevoryas, T. 1958. A fossil stem apex from the Pennsylvanian of Illinois. American Journal of Botany 45: 84–89.
Delevoryas, T. 1959. Investigations of North American cycadeoids: Monanthesia. American Journal of Botany 46(9): 657–666.
Cohen, L.M., and T. Delevoryas. 1959. An occurrence of Cordaites in the Upper Pennsylvanian of Illinois. American Journal of Botany 46(7): 545–549.
Delevoryas, T. 1960. Cycadeoidales. In: McGraw-Hill Encyclopedia of Science and Technology, p. 689. McGraw-Hill Book Company, Inc., New York.
Delevoryas, T. 1960. Book review: The Morphology and Anatomy of American Species of the Genus Psaronius, by J. Morgan, University of Illinois Press, Urbana, Illinois, 1959. Bulletin of the Torrey Botanical Club 87(3): 225–226.
Delevoryas, T. 1960. Book review: Anatomy of Seed Plants, by Katherine Esau, John Wiley & Sons, New York, 1960. AIBS Bulletin 10(3): 40.
Eggert, D.A., and T. Delevoryas. 1960. Callospermarion—a new seed genus from the Upper Pennsylvanian of Illinois. Phytomorphology 10(2): 131–138.
Delevoryas, T. 1960. Investigations of North American cycadeoids: Trunks from Wyoming. American Journal of Botany 47(9): 778–786.
Delevoryas, T. 1961. Book review: Studies in Paleobotany, by Henry H. Andrews, John Wiley & Sons, New York and London, 1961. The Quarterly Review of Biology 36(3): 212.
Delevoryas, T. 1961. Notes on the cone of Cycadeoidea. American Journal of Botany 48(6): 540.
Delevoryas, T. 1961. Book review: Principles of Paleobotany, by William C. Darrah, The Ronald Press Company, New York, 1960. The Quarterly Review of Biology 36(3): 212.
Delevoryas, T. 1962. Book review: The Yorkshire Jurassic Flora. I. Thallophyta-Pteridophyta, Thomas Maxwell Harris, British Museum (Natural History), London, 1961. The Quarterly Review of Biology 37(2): 181–182.
Delevoryas, T. 1962. Book review: Fossile Wandstrukturen. Handbuch der Pflanzenanatomie. Abteilung Cytologie, Band III, Teil 5, by Erich Hennes, Gebrüder Borntraeger, Berlin, 1959. The Quarterly Review of Biology 37(2): 182.
Delevoryas, T. 1962. Morphology and Evolution of Fossil Plants. Holt, Rinehart and Winston, New York, 189 pp.
Delevoryas, T. 1963. Investigations of North American cycadeoids: Cones of Cycadeoidea. American Journal of Botany 50(1): 45–52.
Delevoryas, T. 1964. The role of palaeobotany in vascular plant classification, pp. 26–36. In: V.H. Heywood and J. McNeill (eds.), Phenetic and Phylogenetic Classification. Systematics Association, London, U.K.,
Delevoryas, T. 1964. Origin and evolution of ferns. Memoirs of the Torrey Botanical Club 21(5): 1–2.
Delevoryas, T. 1964. Ontogenetic studies of fossil plants. Phytomorphology 14(2): 299–314.
Taylor, T.N., and T. Delevoryas. 1964. Paleozoic seed studies: A new Pennsylvanian Pachytesta from southern Illinois. American Journal of Botany 51(2): 189–195.
Delevoryas, T. 1964. Two petrified angiosperms from the Upper Cretaceous of South Dakota. Journal of Paleontology 38(3): 584–586.
Delevoryas, T. 1964. A probable pteridosperm microsporangiate fructification from the Pennsylvanian of Illinois. Palaeontology 7(1): 60–63.
Delevoryas, T. 1965. Investigations of North American cycadeoids: Microsporangiate structures and phylogenetic implications. The Palaeobotanist 14(1–3): 89–93.
Delevoryas, T. 1966. Book review: Spores. Ferns, Microscopic Illusions Analyzed, by Clara S. Hires, Mistaires Laboratories, Millburn, New Jersey, 1965. Bulletin of the Torrey Botanical Club 93(6): 460.
Delevoryas, T. 1966. Book review: The Morphology of Gymnosperms. The Structure and Evolution of Primitive Seed-Plants, by K.R. Sporne, Hillary House Publishers, Ltd., New York, 1965. The Quarterly Review of Biology 41(4): 422.
Delevoryas, T. 1966. Plant Diversification. Holt, Rinehart and Winston, New York, 145 pp.
Ostrom, J.H., and T. Delevoryas. 1966. The Age of Reptiles: A Guide to the Rudolph Zallinger Mural in the Peabody Museum, Yale University. Yale University Press, New Haven, Connecticut, 37 pp.
Delevoryas, T. 1966. Hunting fossil plants in Mexico. Discovery 2(1): 7–13.
Delevoryas, T. 1966. Investigations of North American cycadeoids: Microsporangiate structures and phylogenetic implications. The Palaeobotanist 14(1-3): 89–93.
Eggert, D.A., and T. Delevoryas. 1967. Studies of Paleozoic ferns: Sermaya, gen. nov. and its bearing on Filicalean evolution in the Paleozoic. Palaeontographica 120, Abt. B: 169–180.
Jain, R.K., and T. Delevoryas. 1967. A Middle Triassic flora from the Cacheuta Formation, Minas de Petroleo, Argentina. Palaeontology 10(4): 564–589.
Delevoryas, T. 1967. Further remarks on the ontogeny of certain Carboniferous plants. Phytomorphology 17(1-4): 330–336.
Delevoryas, T. 1968. Book review: Traité de Paléobotanique. Tome II. Bryophyta, Psilophyta, Lycophyta, by E. Boureau, Masson et Cie, 1964. Bryologist 71(2): 157–158.
Delevoryas, T. 1968. Some aspects of cycadeoid evolution. Botanical Journal of the Linnean Society 61: 137–146.
Delevoryas, T. 1968. Paleobotanical investigations. Yale Scientific Monthly 42(8): 4–9, 21.
Delevoryas, T. 1968. Investigations of North American cycadeoids: Structure, ontogeny and phylogenetic considerations of cones of Cycadeoidea. Palaeontographica 121, Abt. B: 122–133.
Delevoryas, T. 1969. Paleobotany, phylogeny, and a natural system of classification. Taxon 18(2): 204–212.
Delevoryas, T., and T.N. Taylor. 1969. A probable pteridosperm with eremopterid foliage from the Allegheny Group of northern Pennsylvania. Postilla 133: 1–14.
Delevoryas, T. 1969. Glossopterid leaves from the Middle Jurassic of Oaxaca, Mexico. Science 165(3896): 895–896.
Delevoryas, T. 1970. Book Review: Xylotomy of the Living Cycads with a Description of Their Leaves and Epidermis, by Pal Greguss, Akademiai Kiado, Budapest. 1968. Economic Botany 24(1): 108.
Delevoryas, T. 1970. Book review: The Yorkshire Jurassic Flora. III: Bennettitales, by Thomas Maxwell Harris, British Museum (Natural History), London, 1969. The Quarterly Review of Biology 45(4): 383.
Delevoryas, T. 1970 . Book review: A Short History of Botany in the United States, by Joseph Ewan, Ed. Hafner, New York, 1969. Science 169: 1194.
Delevoryas, T. 1970. Book review: The Fossil Flora of the Drywood Formation of Southwestern Missouri, by P.W. Basson, University of Missouri Press, Columbia, 1969. BioScience 20(4): 251.
Delevoryas, T. 1970. Book review: Anatomy of the Monocotyledons IV. Juncales, by D.F. Cutler, C.R. Metcalf (ed.), Oxford University Press, New York, 1969. BioScience 20(14): 831.
Delevoryas, T. 1970. Biotic provinces and the Jurassic-Cretaceous floral transition, pp. 1660–1674. In: E.L. Yochelson (ed.), Proceedings of the North American Paleontological Convention, vol. 2, Allen Press, Inc., Lawrence, Kansas.
Delevoryas, T. 1970. Plant life in the Triassic of North Carolina. Discovery 6(1): 15–22.
Delevoryas, T., and R.E. Gould. 1971. An unusual fossil fructification from the Jurassic of Oaxaca, Mexico. American Journal of Botany 58(7): 616–620.
Delevoryas, T. 1971. Cycadeoidales, p. 689. In: McGraw-Hill Encyclopedia of Science and Technology, Third Edition, McGraw-Hill Book Company, Inc., New York.
Delevoryas, T., and R.C. Hope. 1971. A new Triassic cycad and its phyletic implications. Postilla 150: 1–21.
Delevoryas, T. 1971. Biotic provinces and the Jurassic–Cretaceous floral transition, pp. 1660–1674. In: K.M. Waage (ed.), North American Paleontological Convention, Proceedings, Part L, Allen Press, Lawrence, Kansas.
Crepet, W.L., and T. Delevoryas. 1972. Investigations of North American cycadeoids: Early ovule ontogeny. American Journal of Botany 59(2): 209–215.
Delevoryas, T. 1973. Postdrifting Mesozoic floral evolution, pp. 9–19. In: B.J. Meggers, E.S. Ayensu, and W.D. Duckworth (eds.), Tropical Forest Ecosystems in Africa and South America: A comparative review. Smithsonian Institution Press, Washington, D.C.
Delevoryas, T., and R.C. Hope. 1973. Fertile coniferophyte remains from the Late Triassic Deep River Basin, North Carolina. American Journal of Botany 60(8): 810–818.
Delevoryas, T., and R.E. Gould. 1973. Investigations of North American cycadeoids: Williamsonian cones from the Jurassic of Oaxaca, Mexico. Review of Palaeobotany and Palynology 15: 27–42.
Delevoryas, T. 1973. Book review: Fossilium Catalogus; II, Plantae; Pars 79, Gymnospermae (Ginkgophyta et Coniferae) I, by W.J. Jongmans and S.J. Dijkstra, 1971; Gymnospermae (Ginkgophyta et Coniferae) II, by W.J. Jongmans and S.J. Dijkstra, 1971, Dr. W. Junk’s-Gravenhage, The Hague, 1971. Journal of Paleontology 47(3): 595.
Delevoryas, T. 1973. Biological nomenclature. Systematics Association Publication, No. 6: 29–36.
Delevoryas, T. 1975. Book review: Bryophytes of the Pleistocene: The British Record and its Chorological and Ecological Implications, by J. H. Dickson, University Cambridge Press, Cambridge, 1973. The Quarterly Review of Biology 50(1): 75.
Delevoryas, T. 1975. Mesozoic cycadophytes, pp. 173–191. In: K.S.W. Campbell, (ed.), Gondwana Geology. Australian National University Press, Canberra, Australia.
Delevoryas, T., and C.P. Person. 1975. Mexiglossa varia gen. et sp. nov., a new genus of glossopteroid leaves from the Jurassic of Oaxaca, Mexico. Palaeontographica 154, Abt. B: 114–120.
Delevoryas, T., and R.C. Hope. 1975. Voltzia andrewsii, n. sp., an Upper Triassic seed cone from North Carolina, USA. Review of Palaeobotany and Palynology 20(1-2): 67–74.
Skog, J.E., P.G. Gensel, T.L. Phillips, T. Delevoryas, S.H. Mamay, A.T. Cross , A.E. Kasper, and H.T. Andrews. 1975. Preface to special issue on Henry N. Andrews, Jr. Review of Palaeobotany and Palynology 20(1–2): 2.
Skog, J.E., P.G. Gensel, T.L. Phillips, T. Delevoryas, S.H. Mamay, A.T. Cross , A.E. Kasper, and H.T. Andrews (eds.). 1975. Special issue dedicated to Henry N. Andrews Jr. on his retirement. Review of Palaeobotany and Palynology 20(1–2): 2–131.
Skog, J.E., P.G. Gensel, T.L. Phillips, T. Delevoryas, S.H. Mamay, A.T. Cross , A.E. Kasper, and H.T. Andrews. 1975. Henry N. Andrews Jr.: A biographical sketch. Review of Palaeobotany and Palynology 20(1–2): 3–11.
Delevoryas, T., and R.C. Hope. 1976. More evidence for a slender growth habit in Mesozoic cycadophytes. Review of Palaeobotany and Palynology 21(1): 93–100.
Delevoryas, T. 1977. Plant Diversification, Second Edition. Holt, Rinehart and Winston, New York, 144 pp.
Ostrom, J.H., and T. Delevoryas. 1977. The Age of Reptiles. Yale University Press, New Haven, Connecticut, 39 pp.
Gould, R.E., and T. Delevoryas. 1977. The biology of Glossopteris: Evidence from petrified seed-bearing and pollen-bearing organs. Alcheringa 1: 387–399.
Delevoryas, T., and R.C. Hope. 1978. Habit of the Upper Triassic Pekinopteris auriculata. Canadian Journal of Botany 56(24): 3129–3135.
Delevoryas, T. 1978. Diversificação nas Plantas. Pioneira, Sao Paulo, SP (Brazil), 184 pp.
Taylor, T.N., D.L. Dilcher, and T. Delevoryas. 1979. Plant reproduction in the fossil record—Introduction. Review of Palaeobotany and Palynology 27(3–4): 211–212.
Taylor, T.N., D.L. Dilcher, and T. Delevoryas (eds.). 1979. Plant reproduction in the fossil record. Review of Palaeobotany and Palynology 27(3–4): 211–358. [Papers presented at a symposium of Paleobotanical Section, Botanical Society of America, Michigan State University, August 1977]
Ball, H.W., H.W. Borns, Jr., B.A. Hall, H.K. Brooks, F.M. Carpenter, and T. Delevoryas. 1979. Biota, age, and significance of lake deposits, Carapace Nunatak, Victoria Land, Antarctica, pp. 166–175. In: B. Laskar and C.S.R. Rao (eds.), Fourth International Gondwana Symposium: Papers. Hindustan Publishing Corporation, New Delhi, India.
Delevoryas, T. 1980. Polyploidy in gymnosperms, pp. 215–218. In: W.H. Lewis (ed.), Polyploidy: Biological Relevance. Plenum Press, New York.
Daghlian, C.P., W.L. Crepet, and T. Delevoryas. 1980. Investigations of Tertiary angiosperms: A new flora including Eomimosoidea plumosa from the Oligocene of eastern Texas. American Journal of Botany 67(3): 309–320.
Delevoryas, T., and R.C. Hope. 1981 . Conifer diversity in the Upper Triassic. BioScience 31(4): 326–328.
Serlin, B.S., T. Delevoryas, and R. Weber. 1981. A new conifer pollen cone from the Upper Cretaceous of Coahuila, Mexico. Review of Palaeobotany and Palynology 31: 241–248.
Delevoryas, T., and S.C. Srivastava. 1981. Jurassic plants from the department of Francisco Morazan, central Honduras. Review of Palaeobotany and Palynology 34: 345–357.
Delevoryas, T. 1981. Diversificación Vegetal. CECSA, Mexico City, 204 pp.
Delevoryas, T., and R.C. Hope. 1981. More evidence for conifer diversity in the Upper Triassic of North Carolina. American Journal of Botany 68(7): 1003–1007.
Person, C.P., and T. Delevoryas. 1982. The Middle Jurassic flora of Oaxaca, Mexico. Palaeontographica 180, Abt. B: 82–119.
Delevoryas, T. 1982. A new Coniopteris from the Middle Jurassic of Tecomatlan Puebla, Mexico, pp. 71–76. In: D.D. Nautiyal (ed.), Studies on Living and Fossil Plants. The Society of Plant Taxonomists, Allahabad, India.
Delevoryas, T. 1982. Perspectives on the origin of cycads and cycadeoids. Review of Palaeobotany and Palynology 37(1–2): 115–132.
Taylor, T.N., and T. Delevoryas (eds.). 1982. Gymnosperms: Paleozoic and Mesozoic. Review of Palaeobotany and Palynology 37(1–2): 1–154. [Papers presented at a symposium held at the 13th International Botanical Congress, Sydney, Australia, 21–28 August 1981]
Taylor, T.N., and T. Delevoryas. 1982. Introduction to Gymnosperms: Paleozoic and Mesozoic. Review of Palaeobotany and Palynology 37(1–2): 1–5. In: T.N. Taylor, and T. Delevoryas (eds.),Papers presented at a symposium held at the 13th International Botanical Congress, Sydney, Australia, 21–28 August 1981.
Smoot, E.L., T.N. Taylor, and T. Delevoryas. 1985. Structurally preserved fossil plants from Antarctica. I. Antarcticycas, gen. nov., a Triassic cycad stem from the Beardmore Glacier area. American Journal of Botany 72: 1410–1423.
Bold, H.C., C.J. Alexopoulos, and T. Delevoryas. 1986. Morfología de las Plantas y los Hongos. Ediciones Omega S.A., New York, U.S.A., Barcelona, Spain. 911 pp.
Ostrom, J.H., L.J. Hickey, and T. Delevoryas. 1987. The Age of Reptiles, Second Edition. Peabody Museum of Natural History, Yale University, New Haven, Connecticut, 38 pp.
Taylor, T.N., T. Delevoryas, and R.C. Hope. 1987. Pollen cones from the Late Triassic of North America and implications on conifer evolution. Review of Palaeobotany and Palynology 53: 141–149.
Bold, H.C., C.J. Alexopoulos, and T. Delevoryas. 1987. Morphology of Plants and Fungi, Fifth Edition. Harper and Row, Publishers, New York, 912 pp.
Laudon, T.S., D.J. Lidke, T. Delevoryas, and C.T. Gee. 1987. Sedimentary rocks of the English coast, eastern Ellsworth Land, Antarctica, pp. 183–189. In: G.D. McKenzie (ed.), Gondwana Six: Structure, Tectonics, and Geophysics. American Geophysical Union, Washington, D.C.
Delevoryas, T., and R.C. Hope. 1987. Further observations on the Late Triassic conifers Compsostrobus neotericus and Voltzia andrewsii. Review of Palaeobotany and Palynology 51: 59–64.
Delevoryas, T. 1990. Comments on the role of cycadophytes in Antarctic fossil floras, pp. 173–178. In: T.N. Taylor and E.L. Taylor (eds.), Antarctic Paleobiology—Its Role in the Reconstruction of Gondwana. Springer-Verlag, New York.
Delevoryas, T. 1991. Investigations of North American cycadeoids: Weltrichia and Williamsonia from the Jurassic of Oaxaca, Mexico. American Journal of Botany 78(2): 177–182.
Gustavson, T.C., and T. Delevoryas. 1992. Caulerpa-like marine alga from Permian strata, Palo Duro Basin, west Texas. Journal of Paleontology 66(1): 160–161.
Delevoryas, T., T.N. Taylor, and E.L. Taylor. 1992. A marattialean fern from the Triassic of Antarctica. Review of Palaeobotany and Palynology 74: 101–107.
Delevoryas, T. 1993. Book review: Jurassic and Cretaceous Floras and Climates of the Earth, by V.A. Vakhrameev, N.F. Hughes (ed.), J.V. Litvinov (transl.), Cambridge University Press, Cambridge and New York, 1991. The Quarterly Review of Biology 68(1): 96–97.
Delevoryas, T. 1993. Origin, evolution, and growth patterns of cycads, pp. 236–245. In: D.W. Stevenson and K.J. Norstog (eds.), The Biology, Structure, and Systematics of the Cycadales. Palm and Cycad Societies of Australia, Ltd., Milton, Queensland, Australia.
Axsmith, B.J., T.N. Taylor, T. Delevoryas, and R.C. Hope. 1995. A new species of Eoginkgoites from the Upper Triassic of North Carolina, USA. Review of Palaeobotany and Palynology 85: 189–198.
Delevoryas, T., and J.E. Mickle. 1995. Upper Cretaceous magnoliaceous fruit from British Columbia. American Journal of Botany 82(6): 763–768.
Compiled by Thomas N. Taylor, Edith L. Taylor and Charles P. Daghlian in 2010,
lightly modified by Carole Gee in 2019