Plate I.
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Fig. 1.—An ichthyosaur (I. quadriscissus) containing in the body cavity the partially preserved skeletons of seven young, proving that
the young of the animal developed within the maternal body and were brought forth alive; i.e. that the ichthyosaur was a
viviparous animal. (Specimen presented to the American Museum of Natural History by the Royal Museum of Stuttgart through
Professor Eberhard Fraas.)
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Fig. 2.—A hypothetical pictorial
restoration of the mother
ichthyosaur accompanied by
five of its newly born young,
from the information furnished
by actual fossils.
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(From a drawing by Charles R.
Knight made under the direction of
Professor Osborn.)
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Fig. 3.—One of the most perfect of the many specimens discovered and prepared by Herr Bernard Hauff, and showing the extraordinary
preservation of the epidermis of the ichthyosaur, which gives the complete contour of the body in silhouette, the outlines
of the paddles, of the remarkably fish-like tail, into the lower lobe of which the vertebral column extends, and the great
integumentary dorsal fin.
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Materials for the Restoration of Ichthyosaurs.—This plate illustrates the exceptional opportunity afforded the palaeontologist through
the remarkably preserved remains of Ichthyosaurs in the quarries of Holzmaden near Stuttgart, Württemberg, excavated for many years
by Herr Bernard Hauff. (Illustrations reproduced by permission from specimens in the American Museum of Natural History, New York.)
- XX. 580.