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Unformatted text preview: to a maximum of 11 during the Cretaceous before the decline to the single species, Ginkgo biloba , that remains today. Othe Gymnosperms The Mesozoic saw the spread of true conifers, including forms similar to Metasequioia and Sequoia , as well as numerous types of pines. A wide variety of extinct gymnosperms were present, including Caytonia and Pentoxylon . Flying Reptiles The flying reptiles of the Triassic underwent diversification during the Jurassic. The pterosaurs (literally winged-lizard) consisted of the earlier forms with long tails, like Rhamphorhynchus shown below, and the later forms that ruled the Cretaceous period, the pterodactyls. The long tailed formns died out by the close of the Jurassic. Pterosaurs had hollow bones, large brains and possibly some had endothermy....
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- Fall '10