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Fig. 31 in New Data On The Skull And Dentition In The Mongolian Late Cretaceous Eutherian Mammal Zalambdalestes

Fig. 31. Stereophotograph of the skull of cf. Zalambdalestes sp. PSSMAE 129 in right lateral view, with accompanying line drawing. Gray pattern represents matrix; parallel lines are damaged surfaces. Abbreviations: C, upper canine; con, (mandibular) condyle; cor, coronoid process; fr, frontal; I2, upper second incisor; ma, mandible; maf, masseteric fossa; mx, maxilla; na, nasal; P1, upper first premolar; P2, upper second premolar; P3, upper third premolar; p2, lower second premolar; p3, lower third premolar; pe, petrosal; pmx, premaxilla.

Fig. 35 in New Data On The Skull And Dentition In The Mongolian Late Cretaceous Eutherian Mammal Zalambdalestes

Fig. 35. Stereophotograph of the skull of Zalambdalestes lechei PSSMAE 130 in ventral view, with accompanying line drawing. Gray pattern represents matrix. Abbreviations: art, artifact; bo, basioccipital; C, upper canine; ecpc, ectopterygoid crest; ef, ethmoidal foramen; enpc, entopterygoid crest; gf, glenoid fossa; I1a, upper first incisor alveolus; I2a, upper second incisor alveolus; iof, infraorbital foramen; inf, incisive foramen; ju, jugal; M1, upper first molar; M2, upper second molar; M3, upper third molar; mpf, minor palatine foramina; mapf, major palatime foramina; mx, maxilla; oc, occipital condyle; P2, upper second premolar; P3, upper third premolar; P4, upper fourth premolar; pf, piriform fenestra; pms, palatomaxillary suture; pmx, premaxilla; ppt, postpalatine torus; pr, promontorium; pt, pterygoid; sq, squamosal; vo, vomer.

Fig. 24 in New Data On The Skull And Dentition In The Mongolian Late Cretaceous Eutherian Mammal Zalambdalestes

Fig. 24. Stereophotograph of the left orbit of Zalambdalestes lechei PSSMAE 108 in oblique lateral view, with accompanying line drawing. Gray pattern represents matrix; parallel lines are damaged surfaces. Abbreviations: an, (mandibular) angle; ef, ethmoidal foramen; fr, frontal; ju, jugal; lac, lacrimal; lacf, lacrimal foramen; ma, mandible; mx, maxilla; mxf, maxillary foramen; pal, palatine; spf, sphenopalatine foramen; tlc, translacrimal canal; tr, trough.

Fig. 30 in New Data On The Skull And Dentition In The Mongolian Late Cretaceous Eutherian Mammal Zalambdalestes

Fig. 30. Stereophotograph of the skull of Zalambdalestes lechei PSSMAE 135 in left lateral view, with accompanying line drawing. Gray pattern represents matrix; parallel lines are damaged surfaces. Abbreviations: con, (mandibular) condyle; fr, frontal; hhu, head of humerus; ju, jugal; lac, lacrimal; mx, maxilla; na, nasal; pa, parietal; pop, postor bital process; sq, squamosal; tl, temporal line; tlc, translacrimal canal.

Fig. 28 in New Data On The Skull And Dentition In The Mongolian Late Cretaceous Eutherian Mammal Zalambdalestes

Fig. 28. Stereophotograph of the left orbit of Zalambdalestes lechei PSSMAE 130 in oblique lateral view, showing the roots of the left molars projecting through the floor of the orbit.

Fig. 3 in New Data On The Skull And Dentition In The Mongolian Late Cretaceous Eutherian Mammal Zalambdalestes

Fig. 3. The skull and lower jaws of Zalambdalestes lechei PSSMAE 130 in (clockwise from upper left) dorsal, ventral, left lateral, and right lateral views.

Fig. 2 in New Data On The Skull And Dentition In The Mongolian Late Cretaceous Eutherian Mammal Zalambdalestes

Fig. 2. The skull and lower jaws of Zalambdalestes lechei PSSMAE 108 in (clockwise from upper left) dorsal, ventral, left lateral, and right lateral views.

Fig. 1 in New Data On The Skull And Dentition In The Mongolian Late Cretaceous Eutherian Mammal Zalambdalestes

Fig. 1. The skull of the holotype of Zalambdalestes lechei AMNH 21708 in (clockwise from upper left) dorsal, ventral, and right lateral views.

Fig. 67 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 67. Suture of Solenoceras elegans, n. sp. E is the external lobe, L is the lateral lobe, U is the umbilical lobe, and I is the internal lobe. The heavy, straight line marks the middle of the venter. USNM 482825, USGS Mesozoic locality D1387 (fig. 2, loc. 27).

Fig. 63 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 63. Restoration of most of a Solenoceras larimerense, n. sp. Stipple board drawing by John R. Stacy. Figure is ×4.

Fig. 53 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 53. Histogram showing range in diameters of the elbows of 48 specimens of Oxybeloceras crassum (Whitfield, 1877), USGS Mesozoic localities D251, D358, D359, D454, D735, D1364, and D4332.

Fig. 60 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 60. Part of the suture of Solenoceras bearpawense, n. sp. E is the external lobe and L is the lateral lobe. The heavy, straight line marks the middle of the venter. USNM 482513, USGS Mesozoic locality D2629 (fig. 2, loc. 3).

Fig. 56 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 56. Restoration of Spiroxybeloceras meekanum (Whitfield, 1877). Stipple board drawing by John R. Stacy. Figure is ×2.

Fig. 52 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 52. Part of the fifth from last suture of Oxybeloceras crassum (Whitfield, 1877). USNM 482502, USGS Mesozoic locality D2837 (fig. 2, loc. 40). E is the external lobe, L is the lateral lobe, and the heavy straight line marks the middle of the venter.

Fig. 47 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 47. Exiteloceras jenneyi jenneyi (Whitfield, 1877). A. USNM 482487, USGS Mesozoic locality D304 (fig. 2, loc. 35). B, C. Private collection of the late Karl F. Hirsch, Denver, Colo., Pierre Shale of the Pueblo area, Colo. Figures are ×1.

Fig. 50. A, B. Exiteloceras jenneyi camacki, n. subsp. Paratype, USNM 482495, USGS Mesozoic locality D13525 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 50. A, B. Exiteloceras jenneyi camacki, n. subsp. Paratype, USNM 482495, USGS Mesozoic locality D13525 (fig. 2, loc. 22). Figures are ×1.

Fig. 45 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 45. Exiteloceras jenneyi jenneyi (Whitfield, 1877). A. USNM 482484, USGS Mesozoic locality D304 (fig. 2, loc. 35). B. USNM 482485, same locality. Figures are ×1.

Fig. 44. A C in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 44. A C. Exiteloceras jenneyi jenneyi (Whitfield, 1877). A. USNM 482473, USGS Mesozoic locality D304 (fig. 2, loc. 35). B. USNM 482483, USGS Mesozoic locality D1947 (fig. 2, loc. 19). C. Plaster cast of a specimen from the private collection of the late Karl F. Hirsch, Denver, Colo., Pierre Shale at Long Hollow north of Pueblo, Colo. D, E. Exiteloceras jenneyi camacki, n. subsp. Paratype, USNM 482494, USGS Mesozoic locality 1344 (fig. 2, loc. 60). Figures are ×1.

Fig. 41 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 41. Index map of part of the Western Interior of the United States showing localities of Exiteloceras jenneyi (Whitfield, 1877). An x may represent one or several nearby localities. Numbers refer to USGS Mesozoic localities mentioned in the text. Dashed line marks the approximate western shoreline of the Western Interior Seaway during E. jenneyi zone time.

Fig. 42 in Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States

Fig. 42. Exiteloceras jenneyi jenneyi (Whitfield, 1877). A. USNM 482482, USGS Mesozoic locality D304 (fig. 2, loc. 35). B, C. USNM 12295, holotype, from ''limestone of the Fort Pierre Group, on the west side of Beaver Creek, southwest Black Hills'' (Whitfield, 1877: 40). Figures are ×1.