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Speculations on the growth rate and reproduction of some dinosaurs

Published online by Cambridge University Press:  08 April 2016

Ted J. Case
Ted J. Case*
Affiliation:
Department of Biology, University of California, San Diego; La Jolla, California 92093
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Abstract

If the dinosaurs Protoceratops grangeri and Hypselosaurus sp. grew at rates predicted for their body size from extant reptiles, their expected ages at reproductive maturity would be about 20 and 62 yr respectively. This calculation assumes that dinosaurs grew at ectothermic rates which are about an order of magnitude slower than those of endothermic vertebrates of the same body size. Such delayed reproductive maturity may have set a premium on selection for high juvenile survivorship that is reflected in the relatively large eggs of these dinosaurs and in their only moderately large clutch sizes compared to modern reptiles.

Type
Research Article
Information
Paleobiology , Volume 4 , Issue 3 , Summer 1978 , pp. 320 - 328
Copyright
Copyright © The Paleontological Society 

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References

Literature Cited

Asdell, S. A. 1964. Patterns of Mammalian Reproduction. 670 pp. Cornell Univ. Press; Ithaca, New York.Google Scholar
Auffenbert, W. 1972. Komodo dragons. Nat. Hist. 81:52–56.Google Scholar
Bakker, R. T. 1971. Dinosaur physiology and origin of mammals. Evolution. 25:636–658.CrossRefGoogle Scholar
Bakker, R. T. 1972. Anatomical and ecological evidence of endothermy in dinosaurs. Nature. 238:81–85.CrossRefGoogle Scholar
Bakker, R. T. 1975. Dinosaur renaissance. Sci. Am. 232(4):58–79.Google Scholar
Bellairs, A. 1970. The Life of Reptiles, Vol. II. 590 pp. Universe Books; New York.Google Scholar
Bennett, A. F. and Dalzell, B. 1973. Dinosaur physiology: a critique. Evolution. 27:170–174.Google Scholar
Branch, W. R. and Patterson, R. W. 1975. Notes on the development of embryos of the African rock python. J. Herpetol. 9:243–238.CrossRefGoogle Scholar
Bruning, D. F. 1973. The greater rhea chick and egg delivery route. Nat. Hist. 82(3):68–75.Google Scholar
Bustard, H. R. 1967. Reproduction in the Australian gekkonid genus Oedura. Herpetologica. 23:276–284.Google Scholar
Bustard, H. R. 1973. Sea Turtles. 220 pp. Taplinger Publ.; New York.Google Scholar
Cagle, F. 1950. The life history of the slider turtle, Pseudemys scripta troostii. Ecol. Monogr. 20:31–54.Google Scholar
Case, T. J. 1978. On the evolution and adaptive significance of postnatal growth rates in the terrestrial vertebrates. Qu. Rev. Biol. In press.CrossRefGoogle Scholar
Campbell, J. A. 1972. Reproduction in captive Trans-Pecos ratsnakes, Elaphe subocularis. Herpetol. Rev. 3:129–130.Google Scholar
Campbell, J. A. and Quinn, H. R. 1975. Reproduction in a pair of Asiatic cobras, (Serpentes, Elapidae). J. Herpetol. 9:229–233.Google Scholar
Carlander, K. D. 1950. Handbook of Freshwater Fishery Biology. 281 pp. W. C. Brown Co.; Dubuque, Iowa.Google Scholar
Carr, A. 1952. Handbook of Turtles. 542 pp. Cornell Univ. Press; Ithaca, New York.Google Scholar
Cloudsley-Thompson, J. L. 1970. On the biology of the desert tortoise Testudo sulcata in Sudan. J. Zool. London. 160:17–33.CrossRefGoogle Scholar
Colbert, E. H. 1962. The weights of dinosaurs. Am. Mus. Novit. No. 2076:1–16.Google Scholar
Colbert, E. H. 1965. The Age of Reptiles. 228 pp. W. W. Norton and Co.; New York.Google Scholar
Cott, H. B. 1961. Scientific results of an enquiry into the ecology and economic status of the Nile crocodile (Crocodilus niloticus) in Uganda and Northern Rhodesia. Trans. Zool. Soc. London. 29:211–356.Google Scholar
Dawbin, W. H. 1962. The tuatara in its natural habitat. Endeavor. 21:16–24.Google Scholar
Dodson, P. 1975. Taxonomic implications of relative growth in lambeosaurine Hadrosaurs. Syst. Zool. 24:37–54.Google Scholar
Ewer, R. F. 1973. The Carnivores. 494 pp. Cornell Univ. Press; Ithaca, New York.Google Scholar
Feduccia, A. 1973. Dinosaurs as reptiles. Evolution. 27:166–169.Google Scholar
Fitch, H. S. 1970. Reproductive Cycles in Lizards and Snakes. 247 pp. Univ. Kans. Mus. Nat. Hist.; Lawrence, Kansas.Google Scholar
Gibbons, J. W. 1972. Reproduction, growth, and sexual dimorphism in the canebrake rattlesnake (Crotalus horridus atricaudatus). Copeia. 1972:222–226.Google Scholar
Glut, D. F. 1972. The Dinosaur Dictionary. 218 pp. Citadel Press; Secaucus, N.J.Google Scholar
Guggisberg, C. A. W. 1972. Crocodiles, their Natural History, Folklore, and Conservation. 203 pp. Stackpole. Harrisburg, Pa.Google Scholar
Hunt, R. H. 1975. Maternal behavior in the Morelet's crocodile Crocodylus moreleti. Copeia. 1975:763–764.Google Scholar
Jenkins, M. K. and Sinkiss, K. 1968. The calcium and phosphate metabolism of reproducing reptiles with particular reference to the adder (Vipera berus). Comp. Biochem. Physiol. 26:865–876.Google Scholar
Klauber, L. M. 1956. Rattlesnakes. Their Habits, Life Histories, and Influence on Mankind. 2 Vols. Univ. Calif. Press; Berkeley, California.Google Scholar
Kurtén, B. 1968. The Age of the Dinosaurs. 225 pp. McGraw-Hill; New York.Google Scholar
Lack, D. 1968. Ecological Adaptations for Breeding in Birds. 439 pp. Methuen; London.Google Scholar
Leitch, I., Hytten, F. E. and Billewicz, W. Z. 1959. The maternal and neonatal weights of some mammalia. Proc. Zool. Soc. London. 133:11–28.Google Scholar
Medem, F. 1971. The reproduction of the dwarf caiman Paleosuchus palpebrosus. International Union for Conservation of Nature and Natural Resources (= IUCN). Publ., New Ser., 32(Suppl.):159–165.Google Scholar
Miller, L. 1932. Notes on the desert tortoise (Testudo agassizii). Trans. San Diego Soc. Nat. Hist. 18:187–208.Google Scholar
Minton, S. A. Jr. and Minton, M. R. 1973. Giant Reptiles. 345 pp. Charles Scribner and Sons; New York.Google Scholar
Neill, W. T. 1971. The Last of the Ruling Reptiles. Alligators, Crocodiles, and Their Kin. 486 pp. Columbia Univ. Press; New York.Google Scholar
Nikolsky, G. V. 1963. The Ecology of Fishes. 352 pp. Academic Press; New York.Google Scholar
Platt, D. R. 1969. Natural history of the hognose snakes Heterodon platyrhinos and Heterodon nasicus. Univ. Kans. Publ. Mus. Nat. Hist.; Lawrence, Kansas. 18:253–420.Google Scholar
Pooley, A. C. and Gans, C. 1976. The Nile Crocodile. Sci. Am. (April) 235:114–125.Google Scholar
Porter, K. R. 1972. Herpetology. 524 pp. W. B. Saunders; Philadelphia, Pennsylvania.Google Scholar
Reese, A. M. 1915. The Alligator and its Allies. 358 pp. G. P. Putnam and Sons; New York.Google Scholar
Rice, D. W. and Wolman, A. A. 1971. The life history and ecology of the gray whale (Eschrichtius robustus). Spec. Publ. No. 3, Am. Soc. Mammal. 142 pp.Google Scholar
Ricklefs, R. E. 1968. Patterns of growth in birds. Ibis. 110:419–451.Google Scholar
Ricklefs, R. E. 1973. Patterns of growth in birds. II. Growth rate and mode of development. Ibis. 115:177–201.Google Scholar
Romanoff, A. L. 1960. The Avian Embryo. 1305 pp. MacMillan; New York.Google Scholar
Ruibal, R., Philibosian, R. and Adkins, J. L. 1972. Reproductive cycle and growth in the lizard Anolis acutus. Copeia. 1972:509–518.Google Scholar
Sacher, G. A. and Staffeldt, E. F. 1974. Relation of gestation time to brain weight for placental mammals: Implications for the theory of vertebrate growth. Am. Nat. 108:593–615.Google Scholar
Schmidt, K. P. and Inger, R. F. 1957. Living Reptiles of the World. 287 pp. Doubleday; Garden City, N.Y.Google Scholar
Sikes, S. K. 1971. The natural history of the African elephant. 397 pp. American Elsevier; New York.Google Scholar
Taylor, St. C. S. 1968. Time taken to mature in relation to mature weight for sexes, strains, and species of domesticated mammals and birds. Anim. Prod. 10:157–169.Google Scholar
Tinkle, D. W. 1967. The life and demography of the side-blotched lizard. Misc. Publ. Mus. Zool. Univ. Mich. No. 132:1–182.Google Scholar
Tinkle, D. W., Wilbur, H. M. and Tilley, S. G. 1970. Evolutionary strategies in lizard reproduction. Evolution. 24:57–74.Google Scholar
Vinegar, B. 1975. Demography of the striped plateau lizard, Sceloporus virgatus. Ecology. 56:172–182.CrossRefGoogle Scholar
Vinegar, A., Hutchison, V. H. and Dowling, H. G. 1970. Metabolism, energetics and thermoregulation during brooding of snakes of the genus Python. Zoologica. 55:19–48.Google Scholar
Walker, E. P. 1964. Mammals of the World. 3 Vols. 2269 pp. John Hopkins Press; Baltimore. Maryland.Google Scholar
Weatherly, A. H. 1972. Growth and Ecology of Fish Populations. 293 pp. Academic Press; New York.Google Scholar
Williams, G. C. 1966. Adaptation and natural selection. 307 pp. Princeton Univ. Press; Princeton, New Jersey.Google Scholar