EXPLANATION OF PLATE I.
Figure three fourths natural size.
Palæosyops paludosus.
Posterior view of cranium.
EXPLANATION OF PLATE II.
Figures one fourth natural size.
Palæosyops major.
Fig. 1.—Axis, view of right side.
Fig. 2.—Axis, anterior view.
Fig. 3.—Atlas, posterior view.
Fig. 4.—Alias, anterior view.
Figs. 5 and 6.—Seventh cervical anterior and posterior view
Figs. 7 and 8.—Anterior and posterior views of right tibia.
Figs. 9 and 10.—Proximal and distal faces of same.
Fig. 11.—Proximal end of fibula.
Fig. 12.—Right femur, posterior view.
Fig. 13.—Trochlea of the same.
EXPLANATION OF PLATE III.
Figures one half natural size.
Palæosyops paludosus.
Figs. 1 and 2.—Ulna, anterior view, and distal articular face of same.
Figs. 3, 4, and 5.—Radius, anterior view; and distal and proximal faces of same.
Fig. 6.—Left scapula.
Fig. 7.—Right humerus, proximal end, anterior view.
Fig. 9.—Left manus, anterior view.
Palæosyops major.
Fig. 8.—Left humerus, anterior view.
EXPLANATION OF PLATE IV.
Figure one half natural size.
Leurocephalus cultridens.
Upper and lower jaws. View of right side. Dotted outlines indicate probable position of lower incisor and canine series.
EXPLANATION OF PLATE V.
Figure one half natural size.
Palæosyops major.
Right innominate bone. The iliac crest and position of pubis estimated in outline.
EXPLANATION OF PLATE VI.
Figures one third natural size.
Uintatherium leidianum.
Fig. 1.—Cervical vertebra, fifth or sixth, anterior view.
Fig. 2.—Dorsal vertebra, anterior region, view of left side.
Fig. 3.—Dorsal vertebra, middle region, posterior view.
Fig. 4.—Last lumbar vertebra, view of right side.
Fig. 5.—Last lumbar vertebra, posterior view.
Fig. 6.—Caudal series, first four vertebræ.
EXPLANATION OF PLATE VII.
Figures one third natural size.
Uintatherium leidianum.
Fig. 1.—Anterior view of right humerus.
Fig. 2.—Ulna, side view, length estimated.
EXPLANATION OF PLATE VIII.
Figures one third natural size.
Uintatherium leidianum.
Fig. 1.—-Right scapula. The dotted outline gives an attempted restoration of the original shape.
Fig. 2.—Tibia of left side, anterior view.
Fig. 3.—View of the proximal articular faces of same.
Fig. 4.—Right femur, posterior view.
EXPLANATION OF PLATE IX.
Figures four fifths natural size.
Orohippus major.
Fig. 1.—Right femur, anterior view, length estimated.
Fig. 2.—Right fibula.
Fig. 3.—Right tibia, anterior view.
Fig. 4.—Calcaneum.
Figs. 5 and 6.—Astragalus and navicular.
Fig. 7.—Metatarsals and phalanges.
Last Fig.—A carnivorous sacrum, probably belonging to the brain, described on pp. 20-22.
EXPLANATION OF PLATE X.
Figures 1, 2, 3, 4, and 6, natural size.
Ithygrammodon cameloides.
Fig. 1.—Left premaxillary, inner view.
Fig. 2.—Left premaxillary, outer view.
Fig. 3.—Right maxillary and premaxillary, outer view, premolar, with dotted outline indicating its probable position.
Fig. 4.—The premaxillaries in position (probable), view from above, showing size and position of the incisors. Dotted lines indicate the premaxillary spine (estimated).
Procamelus occidentalis, Cope, (See Wheeler's Survey, vol. iv., Plate LXXVII.)
Fig. 5.—Part of right maxillary and premaxillary, showing single incisor
with rudimentary alveolus for a second.
Protolabis ——? Cope. (See Wheeler's Survey, vol iv., p. 343.)
Fig. 6.—Right maxillary and premaxillary. (This has never been drawn
before, and was kindly lent to us for this purpose by Prof. Cope.)
Camelus bactrianus. Modern camel.
Fig. 7.—Right maxillaries, one half natural size.
OF THE
EOCENE VERTEBRATES OF WYOMING.
Although we have endeavored to make this catalogue as complete and accurate as possible, we feel that errors and omissions are, from the nature of the case, unavoidable. The material is so vast and heterogeneous, and is so much scattered throughout numberless reports, bulletins, journals, and the like, that its correct compilation is attended with great difficulties. However, a beginning is here made which will render subsequent work easier. Owing to the great number of discoveries which have since been made, Dr. Leidy's excellent catalogue of 1871 covers now but a very small portion of the ground.
In this list we have made no attempt to decide disputed questions of priority and synonymy. Doubtless, many of the genera and species here given will be found to be synonyms of American or European forms; but at present these questions cannot be settled. Where synonyms are given, they are the determinations of the original describer indicated in subsequent publications
MAMMALIA.
PRIMATES.
Notharctus, Leidy. Pr. Ac. Nat. Sc., 1870, p. 114; Cont. to Ext. Vert. Faun., p. 86; Ann. Rep. U. S. Geol. Survey of Terrs., 1871, p. 364. N. tenebrosus, Leidy, loc. cit.
Hyopsodus, Leidy. Pr. Ac. Nat. Sc., 1870, p. 110; U. S. Survey of Terrs., 1870, p. 354; do. 1871, p. 362; Cont. to Ext. Vert. Faun., p. 75.
H. paulus, Leidy, loc. cit.
H. minusculus, Leidy. Cont. to Ext. Vert. Faun., p. 81.
H. gracilis, Marsh. Am. Journ. of Sci., vol. ii., p. 42.
H. vicarius, Cope. Described in U. S. Survey of Terrs., 1872, p. 609, as Microsyops vicarius. Wheeler's Survey, vol. iv., pt. ii., p. 150.
Microsyops, Leidy. Pr. Ac. Nat. Sc., 1872, p. 20; U. S. Survey of Terrs., 1871, p. 363; Cont. to Ext. Vert. Faun., p. 82.
M. gracilis, Leidy, loc. cit. In the "Contributions," Dr. Leidy, considering Limnotherium, Marsh, as a synonym of Microsyops, has called this species M. elegans.
Hipposyus, Leidy. Pr. Ac. Nat. Sc., 1872, p. 37; Cont. to Ext. Vert. Faun., p. 90.
H. formosus, Leidy, loc. cit.
H. robustior, Leidy Cont. to Ext. Vert. Faun., p. 93; Notharctus robustior. U. S. Geol. Survey of Terrs., 1871, p. 364.
Antiacodon, Marsh. Am. Journ. of Sci., 3d Ser. vol. iv., p. 210.
A. venustus, Marsh, loc. cit.
Bathrodon, Marsh. Am. Journ. of Sci., 3d Ser. vol. iv., p. 211.
B. typus, Marsh, loc. cit.
Lemuravus, Marsh. Am. Journ. of Sci., 3d Ser. vol. ix., p. 239.
L. distans, Marsh, loc. cit.
Limnotherium, Marsh. Am. Journ. of Sci., 3d Ser. vol. ii., p. 43.
L. tyrannus, Marsh, loc. cit.
L. elegans, Marsh, loc. cit.
L. affine, Marsh. Am Journ. of Sci., 3d Ser. vol. iv., p. 207.
Mesacodon, Marsh. Am. Journ. of Sci., 3d Ser. vol. iv., p. 212.
M. speciosus, Marsh, loc. cit.
Palæacodon, Leidy. Pr. Ac. Nat. Sc., 1872; p. 21. U. S. Geol. Survey of Terrs., 1871, p. 356; Cont. to Ext. Vert. Faun., p. 122.
P. verus, Leidy, loc. cit.
P. vagus, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 224.
Telmatolestes, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 206.
T. crassus, Marsh, loc. cit.
Tomitherium, Cope. Pr. Am. Phil. Soc., 1872, p. 470; U. S. Geol. Survey of Terrs., 1872, p. 546; Wheeler's Survey, vol. iv., p. 135, pt. ii.
T. rostratum, Cope, loc. cit.; U. S. Survey, 1872, p. 548.
Anaptomorphus, Cope. Pr. Am. Phil. Soc., 1872, p. 554; U. S. Geol. Survey of Terrs., 1872, p. 549.
A. æmulus, Cope, loc. cit.
Oligotomus, Cope. On some Eocene mammals, p. 2; U. S. Geol. Survey of Terrs., 1872, p. 607.
O. cinctus, Cope, loc. cit.
Opisthotomus, Cope. Wheeler's Survey, vol. iv., p. 151, pt. ii.
O. astutus, loc. cit., p. 152.
Pantolestes, Cope. Pr. Am. Phil. Soc., 1872, p. 467; Wheeler's Survey, v. iv., pt. ii., p. 145.
P. longicaudus. Pr. Am. Phil. Soc., 1872, p. 467; Notharctus longicaudus, U. S. Geol. Survey of Terrs., 1872, p. 549.
Sarcolemur, Cope. Pr. Ac. Nat. Sc., 1875, p. 256; Wheeler's Survey, v. iv., pt. ii., p. 147.
S. pygmæus, Cope. Lophiotherium pygmæus, Pr. Am. Phil. Soc., 1872, extras July 20; Antiacodon pygmæus, U. S. Geol. Survey of Terrs., 1872, p. 607; Hyopsodus pygmæus, Pr. Am. Phil. Soc., 1872, p. 461.
S. furcatus, Cope. Antiacodon furcatus. On some Eocene mammals, p. i.; U. S. Geol. Survey of Terrs., 1872, p. 608.
Thinolestes, Marsh. Am. Journ. Sc., 3d Ser. vol. iv., p. 205.
T. anceps, Marsh, loc. cit.
CARNIVORA.
Uintacyon, Leidy. Pr. Ac. Nat. Sc., 1872, p. 277; Cont. to Ext. Vert. Faun., p. 118.
U. edax, Leidy, loc. cit.
U. vorax, Leidy, loc. cit. Cont. to Ext. Vert. Faun., p. 120.
Sinopa, Leidy. Pr. Ac. Nat. Sc., 1871, p. 115; U. S. Geol. Survey of Terrs., 1871, p. 355; Cont. to Ext. Vert. Faun., p. 116.
S. rapax, Leidy, loc. cit.
S. eximia, Leidy. Cont. to Ext. Vert. Faun., p. 118.
Canis.
C. montanus, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 123.
Dromocyon, Marsh. Am. Jour. of Sc., 3d Ser. vol. xii., p. 403.
D. vorax, Marsh, loc. cit.
Harpalodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 216.
H. sylvestris, Marsh, loc cit.
H. vulpinus, Marsh, loc. cit., p. 217.
Limnocyon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 126.
L. verus, Marsh, loc. cit.
L. riparius, Marsh, loc. cit., p. 203.
L. agilis, Marsh, loc. cit., p. 204.
Limnofelis, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 202.
L. ferox, Marsh, loc. cit.
L. latidens, Marsh, loc. cit., p. 203.
Oreocyon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 406
O. latidens, Marsh, loc. cit.
Thinocyon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 204.
T. velox, Marsh, loc. cit.
Viverravus, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 127.
V. gracilis, Marsh, loc. cit.
V. (?) nitidus, Marsh, loc. cit., p. 205.
Ziphacodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 216.
Z. rugatus, Marsh, loc. cit.
Vulpavus, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 124.
V. palustris, Marsh, loc. cit.
Miacis, Cope. Pr. Am. Phil. Soc., 1872, p. 470.
M. parvivorus, loc. cit.; Viverravus parvivorus, U. S. Geol. Survey of Terrs., 1872, p. 560.
Mesonyx, Cope. Pr. Am. Phil. Soc., 1872. p. 460; U S. Geol. Survey of Terrs., 1872, p. 550.
M. obtusidens, Cope, loc. cit. U. S. Survey, p. 552.
Synoplotherium, Cope. Pr. Am. Phil. Soc., 1872, p. 483; U. S. Geol. Survey of Terrs., 1872, p. 554.
S. lanius, Cope, loc. cit. U. S. Survey, p. 557.
Stypolophus, Cope. Pr. Am. Phil. Soc., 1872, p. 466; U. S. Geol. Survey of Terrs., 1872, p. 559; Wheeler's Survey, vol. iv., p. 109.
S. insectivorus, Cope. Pr, Phil. Soc., 1872, p. 469; U. S. Survey, 1872, p. 557.
S. pungens, Cope, loc. cit., pp. 466, 559
S. brevicalcaratus, Cope, loc. cit., pp. 469, 560.
Megencephalon, gen. nov. This report, p 20.
M. primævus, sp. nov. This report, p. 20.
UNGULATA.
PERISSODACTYLA.
Anchitherium.
A. (?)——. This report, p. 23.
Orohippus, Marsh. Am. Jour. of Sc., vol. iv., p. 207; vol. vii., p. 247.
O. pumilus, Marsh, loc. cit., 3d Ser. vol. iv., p. 207.
O. agilis, Marsh, loc. cit., 3d Ser. vol. v., p. 407.
O. major, Marsh, loc. cit., vol. 3d Ser. vii., p. 248.
O. gracilis, Marsh, loc. cit., 3d Ser. vol. vii., p. 249; Anchitherium gracile 3d Ser. vol. ii., p. 38.
O. procyoninus, Cope. Pr. Am. Phil. Soc., 1872, p. 466; U. S. Geol. Survey, 1872, p. 606.
Palæosyops, Leidy. Pr. Ac. Nat. Sc., 1870, p. 113; 1871, pp. 114, 118, 197, 229; 1872, pp. 168, 241; U. S. Geol. Survey, 1870, p. 355; 1871, p. 358; Com. to Ext. Vert. Faun., p. 27; Cope, U. S. Geol. Survey of Terrs., 1872, p. 591.
P. paludosus, Leidy, loc. cit. Cont. to Ext. Vert. Faun., p. 28.
P. major, Leidy. U. S. Geol. Survey of Montana, 1871, p. 359; Pr. Ac. Nat. Sc., 1872, pp. 168, 241; Cont. to Ext. Vert. Faun., p. 45.
P. humilis, Leidy. Pr. Ac. Nat. Sc., 1872, p. 168, 277; Cont. to Ext. Vert. Faun., p. 58.
P. junius, Leidy. Pr. Ac. Nat. Sc., 1872, p. 277; Cont. to Ext. Vert. Faun., p. 57.
P. lævidens, Cope. Pr. Am. Phil. Soc., 1873; U. S. Survey, 1872, p. 591.
P. vallidens, Cope. Pr. Am. Phil. Soc., 1872, p. 487; loc. cit., p. 592.
P. minor, Marsh. Am. Jour. of Sc., vol. ii., p. 36.
Limnohyus, Leidy. Pr. Ac. Nat. Sc., 1872, p. 242; Cont. to Ext. Vert. Faun., p. 58; Marsh, Am. Jour. of Sc., 1872, 3d Ser. vol. iv., p. 124.
L. laticeps, Marsh. Palæosyops laticeps. Am. Journ. Sc. 3d Ser. vol. iv., p. 122.
L. robustus, Marsh, loc. cit., p. 124, is same as P. major, Leidy.
L. diaconus, Cope. U. S. Geol. Survey of Terrs., 1872, p. 593.
L. fontinalis, Cope, loc. cit., p. 594.
Telmatherium, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 123.
T. validum, Marsh, loc. cit.
Leurocephalus, gen. nov. This report, p. 42.
L. cultridens, sp. nov. This report, p. 42.
Hyrachyus, Leidy. Pr. Ac. Nat. Sc., 1871, p. 229; 1872, pp. 19, 163; U. S. Geol. Survey, 1871, p. 360; Cont. to Ext. Vert. Faun., p. 60.
H. agrarius, Leidy, loc. cit.; H. agrestis. U. S. Survey, 1871, p. 357.
H. eximius, Leidy. Pr. Ac. Nat. Sc., 1871, p. 229; 1872, p. 163; U. S. Geol. Survey of Terrs., 1871, p. 361; Cont. to Ext. Vert. Faun., p. 66; Cope, U. S. Geol. Survey of Terrs., 1872, p. 595.
H. modestus, Leidy. Pr. Ac. Nat. Sc., 1872, p. 20; U. S. Geol. Survey of Terrs., 1871, p. 361; Cont. to Ext. Vert. Faun., p. 67; Lophiodon modestus, Pr. Ac. Nat. Sc., 1870. p. 109.
H. nanus, Leidy. Pr. Ac. Nat. Sc., 3d Ser. 1872, p. 20; U. S. Survey, 1871, p. 361; Cont. to Ext. Vert. Faun., p. 67.
H. princeps, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 125.
H. implicatus, Cope. On Some Eocene Mammals, p. 5; U. S. Survey, 1872, p. 604.
H. crassidens, sp. nov. This report, p. 52.
H. imperialis, sp. nov. This report, p. 50.
H. intermedius, sp. nov. This report, p. 51.
H. paradoxus, sp. nov. This report, p. 53.
Helaletes, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 218.
H. boöps, Marsh, loc. cit.
H. latidens, sp. nov. This report, p. 54.
Lophiodon.
L bairdianus, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 36.
L. affinis, loc. cit., p. 37.
L. nanus, loc. cit.
L. pumilus, loc. cit., p. 38.
Lophiotherium.
L. sylvaticum, Leidy. Pr. Ac. Nat. Sc., 1870, p. 126; Cont. to Ext. Vert. Faun., p. 69.
L. Ballardi, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 39.
Orotherium, Marsh. Am: Jour. of Sc., 3d Ser. vol. iv., p. 217.
O. mintanum, Marsh, loc. cit.
Helohyus, Marsh. Am. Journ. of Sc., 3d Ser. vol. iv., p. 207.
H. plicodon, Marsh, loc. cit.
Thinotherium, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 208.
T. validum, Marsh, loc. cit.
ARTIODACTYLA.
All the forms described under this head are of uncertain reference.
Elotherium.
E. lentum, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 39.
Platygonus.
P. Ziegleri, Marsh, loc cit., p. 40.
Parahyus, Marsh. Am. Jour. of Sc., 3d Ser. vol. xii., 402.
P. vagus, Marsh, loc. cit.
Homacodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 126.
H. vagans, Marsh, loc. cit.
Ithygrammodon, gen. nov. This report, p. 56.
I. cameloides, sp. nov. This report, p. 57.
AMBLYPODA.
Cope. Wheeler's Survey, vol., iv., pt. ii., p. 179.
DINOCERATA.
Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 344; Ibid. vol. v., pp. 117-122, 293; Ibid. vol. vi., p. 300; Ibid. vol. xi., p. 163.
Uintatherium, Leidy. Pr. Ac. Nat. Sc., 1872, p. 169; Am. Jour. of Sc., 3d Ser. vol. iv., p. 239; Cont. to Ext. Vert. Faun., p. 96.
U. robustum, Leidy, loc. cit.; Uintamastix atrox, loc. cit.
U. Leidianum, sp. nov. This report, p. 3.
U. princeps, sp. nov. This report, p. 81.
Tinoceras, Marsh. Titanotherium (?), Am. Jour. of Sc., 3d Ser. vol. ii., p. 35; Mastodon, loc. cit., vol. iv., p. 123, footnote; Tinoceras, loc. cit., vol. iv., pp. 322 and 323.
T. anceps, Marsh, loc. cit., vol. iv., p. 322.
T. grandis, Marsh, loc. cit., p. 323.
Dinoceras, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 344; Ibid. vol. v., pp. 117-122; Ibid. vol. v., p. 408.
D. mirabilis, Marsh, loc. cit., vol. iv., p. 344.
D. lucaris, Marsh, loc. cit., vol. v., p. 408.
D. lacustre, Marsh, loc. cit., vol. iv., p. 344.
Loxolophodon, Cope. Pr. Am. Phil. Soc., 1872, pp. 580, 488; U. S. Survey, 1872, p. 565.
L. cornutus, Cope, loc. cit.; U. S. Survey, 1872, p. 568.
Eobasileus, Cope. Pr. Am. Phil. Soc., 1872, p. 485; U. S. Survey, 1872, p. 575.
E. pressicornis, Cope. Pr. Am. Phil. Soc., 1872, p. 580; loc. cit.
E. furcatus, Cope. U. S. Survey, 1872, p. 580; Loxolophodon furcatus, Pr. Am. Phil. Soc., 1872, p. 580.
Coryphodon.
C. hamatus, Marsh. Am. Jour. of Sc., 3d Ser. vol. xi., p. 425.
Bathmodon, Cope. Pr. Am. Phil. Soc., 1872, p. 417; U. S. Geol. Survey, 1871, p. 350; 1872, p. 586.
B. radians, Cope, loc. cit.
B. semicinctus, Cope, loc. cit.
B. latipes, Cope, loc. cit.
Metalophodon, Cope. Pr. Am. Phil. Soc., 1872, p. 542; U. S. Geol. Survey, 1872, p. 589.
M. armatus, Cope, loc. cit.
TILLODONTIA.
Marsh. Am. Jour. of Sc., 3d Ser. vol. ix., p. 221; vol. xi., p. 249.
Anchippodus, Leidy. Pr. Ac. Nat. Soc., 1868, p. 232; Ext. Mam. N. Am., p. 403.
Trogosus. Pr. Ac, 1871, p. 113; Cont. to Ext. Vert. Faun., p. 71.
A. riparius, Leidy. Pr. Ac. Nat. Soc., 1868, p. 232; Cont. to Ext. Vert. Faun., p. 71 (as Trogosus castoridens).
A. vetulus, Leidy; Trogosus vetulus, Pr. Ac. Nat. Sc., 1871, p. 229; Cont. to Ext. Vert. Faun., p. 75.
Tillotherium. Am. Jour. of Sc., 3d Ser. vol. v., p. 485; Ibid. vol. xi., p. 249.
T. hydracoides, Marsh, loc. cit.
T. latidens, Marsh, loc. cit., vol. vii., p. 533.
T. fodiens, Marsh, loc. cit., vol. ix., p. 241.
Stylinodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. vii., p. 532.
S. mirus, loc. cit.
RODENTIA.
Paramys, Leidy. Pr. Ac. Nat. Sc., 1871, p. 231; U. S. Geol. Survey, 1871, p. 357; Cont. to Ext. Vert. Faun., p. 110.
P. delicatus, Leidy, loc. cit.
P. delicatior, Leidy, loc. cit.
P. delicatissimus, Leidy, loc. cit.; Cont. to Ext. Vert. Faun., p. 111.
P. robustus, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 218.
P. superbus, sp. nov. This report, p. 84.
P. leptodus, Cope. U. S. Geol. Survey, 1872, p. 609.
Mysops, Leidy. Pr. Ac. Nat. Sc., 1871, p. 232; U. S. Geol. Survey, 1871, p. 357; Cont. to Ext. Vert. Faun., p. 111.
M. minimus, Leidy, loc. cit.
M. fraternus, Leidy. Cont. to Ext. Vert. Faun., p. 112.
Pseudotomus, Cope. Pr. Am. Phil. Soc., 1872, p. 467; U. S. Geol. Survey, 1872, p. 610.
P. hians, Cope, loc. cit.
Arctomys, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 121.
A. vetus, Marsh, loc. cit.
Geomys, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 121.
G. bisulcatus, Marsh, loc. cit.
Sciuravus, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 122.
S. nitidus, Marsh, loc. cit.
S. undans, Marsh, loc. cit.
S. parvidens, Marsh, loc. cit., 3d Ser. vol. iv., p. 220.
Tillomys, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 219.
T. senex, Marsh, loc. cit.
T. parvus, Marsh, loc. cit.
Tachymys, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 219.
T. lucaris, Marsh, loc. cit.
Colonymys, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 220.
C. celer, Marsh, loc. cit.
INSECTIVORA.
Omomys, Leidy. Pr. Ac. Nat. Sc., 1869, p. 63; Ext. Mam. of N. Am., p. 408; Cont. to Ext. Vert. Faun., p. 120.
O. Carteri, Leidy, loc. cit.
Washakius, Leidy. Cont. to. Ext. Vert. Faun., p. 123.
W. insignis, Leidy, loc. cit.
Passalacodon, Marsh. Am. Jour. of Sc., vol. iv. p. 208.
P. litoralis, Marsh, loc. cit.
Anisacodon,[1] Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 209.
[1] Professor Marsh has subsequently used this name to designate a genus of the Brontotheridæ. Am. Jour. of Sc., vol. ix., p. 246.
A. elegans, Marsh, loc. cit.
Centetodon, Marsh, Am. Jour. of Sc., 3d Ser. vol. iv., p. 209.
C. pulcher, Marsh, loc. cit.
C. altidens, Marsh, loc. cit., p. 214.
Hemiacodon, Marsh, Am. Jour. of Sc., 3d Ser. vol. iv., p. 212.
H. gracilis, Marsh, loc. cit.
H. nanus, Marsh, loc. cit., p. 113
H. pucillus, Marsh, loc. cit.
Entomodon, Marsh, Am. Jour. of Sc., 3d Ser. vol. iv., p. 214.
E. comptus, Marsh, loc. cit.
Entomacodon, Marsh, Am. Jour. of Sc., 3d Ser. vol. iv., p. 214.
E. minutus, Marsh, loc. cit.
E. angustidens, Marsh, loc. cit., p. 222.
Apatemys, Marsh, Am. Journ. of Sc., 3d Ser. vol. iv., p. 221.
A. bellus, Marsh, loc. cit.
A. bellulus, Marsh, loc. cit.
Talpavus, Marsh, Am. Journ. of Sc., 3d Ser. vol. iv., p. 128.
T. nitidus, Marsh, loc cit.
CHIROPTERA.
Nyctitherium, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 127.
N. velox, Marsh, loc. cit.
N. priscum, Marsh, loc. cit., p. 128.
Nyctilestes, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 215.
N. serotinus, Marsh, loc. cit.
MARSUPIALIA.
Triacodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii., p. 123.
T. fallax, Marsh, loc. cit.
T. grandis, Marsh, loc. cit. 3d Ser. vol. iv., p. 222.
T. nanus, Marsh, loc. cit., p. 223.
T. aculeatus, Cope. Pr. Phil. Soc., 1872, p. 460; U. S. Geol. of Terrs., 1872, p. 611.
Genera incertæ sedis.
Stenacodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 210.
S. rarus, Marsh, loc. cit.
RAPTORES.
Bubo.
B. leptosteus, Marsh. Am. Jour. of Sc., 3d Ser. vol. ii, p. 126.
GRALLATORES.
Aletornis, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 256.
A. nobilis, Marsh, loc. cit.
A. pernix, Marsh, loc. cit.
A. venustus, Marsh, loc. cit., p. 257.
A. gracilis, Marsh, loc. cit., p. 258.
A. bellus, Marsh, loc. cit.
SCANSORES.
Uintornis, Marsh. Am. Jour. of Sc., 3d Ser. vol. iv., p. 259.
U. lucaris, Marsh, loc. cit.
CROCODILIA.
Crocodilus.
C. liodon, Marsh. Am. Jour. of Sc., 3d Ser. vol. i., p. 454.
C. affinis, Marsh, loc. cit.
C. Grinnelli, Marsh, loc. cit., p. 455.
C. brevicollis, Marsh, loc. cit., p. 456.
C. parvus, sp. nov. This report, p. 91.
C. clavis, Cope. Pr. Am. Phil. Soc., 1872, p. 485; U. S. Geol. Survey, 1872, p. 612.
C. sulciferus, Cope. Pr. Am. Phil. Soc., 1872, p. 555; U. S. Survey, loc. cit.
C. hetorodon, Cope. Alligator heterodon, Pr Am. Phil. Soc., 1872, p. 544; U. S. Geol. Survey, 1872, p. 614.
C. aptus, Leidy. Cont. to Ext. Vert. Faun., p. 126.
C. Elliotii, Leidy, loc cit.
Diplocynodus.
D. subulatus, Cope. U. S. Geol. Survey, 1872, p. 613; Crocodilus subulatus, Pr. Am. Phil. Soc., 1872, p. 554.
D. polyodon, Cope. U. S. Geol. Survey, 1872, p. 614. (In his report to Lt. Wheeler, Prof. Cope says that "a single species, the D. subulatus, occurs" in the Bridger Basin, (p. 60). It is therefore probable that he has changed the D. polyodon, but we cannot find its synonym.)
LACERTILIA.
Saniva, Leidy. Pr. Ac. Nat. Sc., 1870, p. 124; U. S. Survey, 1870, p. 368; do., 1871, p. 370; Com. to Ext. Vert. Faun., p. 181.