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Updated: June 13, 2025
In the embryo of the cod or perch the backbone has, at an early stage, the same position as in the shark or ganoid; only at a later stage does it attain its definite position. The embryology of turtles throws light upon the fossil chelonians. It is already known that the embryonic changes of frogs and toads coincide with what is known of their succession in past ages.
"A regular egg-field," observed Gideon Spilett, "and we have nothing to do but to pick them up." But not being contented with simply the produce, they made chase after the producers, the result of which was that they were able to bring back to Granite House a dozen of these chelonians, which were really valuable from an alimentary point of view.
A large Rudist of the genus Radiolite, no less than two feet in height, may be seen in the Cambridge Museum, obtained from this bed. The number of reptilian remains, all apparently of Cretaceous age, is truly surprising; more than ten species of Pterodactyl, five or six of Ichthyosaurus, one of Pliosaurus, one of Dinosaurus, eight of Chelonians, besides other forms, having been recognised.
According to Professor Hitchcock, the footprints of no less than thirty-two species of bipeds, and twelve of quadrupeds, have been already detected in these rocks. Thirty of these are believed to be those of birds, four of lizards, two of chelonians, and six of batrachians.
I know what it is," answered Benito. "Tomorrow, at daybreak, there will be a rare treat for those who like fresh turtle eggs and little turtles!" He was not deceived; the noise was produced by innumerable chelonians of all sizes, who were attracted to the islands to lay their eggs. It is in the sand of the beach that these amphibians choose the most convenient places to deposit their eggs.
"Not half so swift the sailing falcon flies That drives a turtle through the liquid skies." The only flight of a testudinate which we remember is that downward one of the unfortunate tortoise that cracked the bald crown of Aeschylus. But turtle, as embracing all chelonians, or, as liberal shepherds call it, "turkle," is unquestionably Cisatlantic.
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