ed as a panel, in position
as it lay in the rock, and with considerable parts of the original
sandstone matrix still adherent. The long slender limbs, long neck,
small head and toothless jaws are all singularly bird-like, and afford
a striking contrast to the Tyrannosaurus. At the time of writing, its
adaptation and relationships have not yet been thoroughly
investigated.

[Illustration: Fig. 19.--MOUNTED SKELETON OF BRONTOSAURUS IN THE
AMERICAN MUSEUM.]

FOOTNOTES:

[Footnote 4: This is still doubtful in _Tyrannosaurus_. A number of
very curious plates were found with one specimen in a quarry. B.
Brown, 1913.]

[Footnote 5: Quite recently a series of more or less complete
skeletons have been secured from the upper Triassic (Keuper) near
Halberstadt in Germany. They are not true Megalosaurians, but
primitive types (Pachypodosauria) ancestral to both these and the
Sauropoda. Probably many of the Connecticut footprints were made by
animals of this primitive group. _Anchisaurus_ certainly belongs to
it.]

[Footnote 6: It is evidently "the dinosaur" of Sir Conan Doyle's "Lost
World" but the vivid description which the great English novelist
gives of its appearance and habits, based probably upon the Hawkins
restoration, is not at all in accord with inferences from what is now
known of these animals. See p. 44.]

[Footnote 7: Allosaurus, a carnivorous Dinosaur, and its Prey. By W.D.
Matthew. Am. Mus. Nat. Hist. Jour. Vol. viii, pp. 3-5, pl. 1.]

[Footnote 8: The cost of preparation is now defrayed by the Museum.]

[Footnote 9: Tyrannosaurus, Restoration and Model of the Skeleton. By
Henry Fairfield Osborn. Bull. Amer. Mus. Nat. Hist., 1913, vol. xxxii,
art. iv, pp. 91-92.]

[Footnote 10: Since these lines were written the Museum has secured
finely preserved skeletons of two or more kinds of Carnivorous
Dinosaurs from the Belly River formation in Canada.]

CHAPTER V.

THE AMPHIBIOUS DINOSAURS, BRONTOSAURUS, DIPLODOCUS, ETC.

SUB-ORDER OPISTHOCOELIA (CETIOSAURIA OR SAUROPODA).

These were the Giant Reptiles par-excellence, for all of them were of
enormous size, and some were by far the largest of all four-footed
animals, exceeded in bulk only by the modern whales. In contrast to
the carnivorous dinosaurs these are quadrupedal, with very small head,
blunt teeth, long giraffe-like neck, elephantine body and limbs, long
massive tail prolonged at the tip into a whip-lash as in the lizards.
Like the e