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441 results for “Maastrichtian”
Fig. 5 in On The Occurrence Of Salpingoporella Pasmanica Radoičić, 2002, (Dasycladales) From The Late Maastrichtian Of The Zagros Zone, Sw Iran
Fig. 5 Salpingoporella pasmanica Radoičić, Late Maastrichtian Tarbur Formation of Mandegan section, Zagros Zone, SW Iran. a Longitudinal section. b-d, m Longitudinal-tangential sections. e-f Oblique sections. g-l, n, o Transverse sections, partly slightly oblique. Thin-sections: Rt 89-2B (a-d), Rt 79-2 (e-f), SNSB-BSPG 2016 III-6 (g-o).
Fig. 2 in Zagrosella Rigaudii N. Gen., N. Sp., A New Biokovinoidean Foraminifer From The Maastrichtian Of Iran
Fig. 2 Vertical distribution (total range) of selected taxa of larger benthic foraminifera in the Tarbur Formation of the Naghan section.
Fig. 4 in Persiacyclammina Maastrichtiana N. Gen., N. Sp., A New Larger Benthic Foraminifer From The Maastrichtian Of Iran
Fig. 4 Schematic drawing of part of one chamber of Persiacyclammina maastrichtiana n. gen., n. sp. showing the interpretation and nomenclature of structural elements (without scale).
Fig. 2 in Persiacyclammina Maastrichtiana N. Gen., N. Sp., A New Larger Benthic Foraminifer From The Maastrichtian Of Iran
Fig. 2 Typical microfacies of samples with Persiacyclammina maastrichtiana n. gen., n. sp. (P), from the upper Maastrichtian Tarbur Formation of the Naghan section. a–b Wackestones/packstones with benthic foraminifera, among many porcelaneous and agglutinating taxa such as Dicyclina sp. (D), Zagrosella rigaudii Schlagintweit & Rashidi (Z), and remains of dasycladalean algae [(d) here: Pseudocymopolia anadyomenea (Elliott) (Ps) and others in A]. c–d Wackestones/packstones with debris of rudists, larger benthic foraminifera [Dicyclina sp. (D), Loftusia sp. (L), Omphalocyclus macroporus Lamarck (O)]. Thin-sections: 2NG 81-3 (a), 2NG 85-4 (b), 2NG 138 (c), 2NG 159 (d).
Fig. 4 in On The Occurrence Of Salpingoporella Pasmanica Radoičić, 2002, (Dasycladales) From The Late Maastrichtian Of The Zagros Zone, Sw Iran
Fig. 4 Microfacies of Late Maastrichtian Tarbur Formation. a Bioclastic wacke-/packstone with large benthic foraminifer Loftusia sp. and dasycladale Salpingoporella pasmanica Radoičić (transverse section, arrow and detailed view). Thinsection Rt 177-1. Scale bars: 1.0 mm and 0.3 mm (detail, right below). b Bioclastic wacke-/packstone with large benthic foraminifera (Dicyclina? sp.), and dasycladalean algae Salpingoporella pasmanica Radoičić (arrow) and Salpingoporella? sp. with tilted laterals.
Fig. 3 in On The Occurrence Of Salpingoporella Pasmanica Radoičić, 2002, (Dasycladales) From The Late Maastrichtian Of The Zagros Zone, Sw Iran
Fig. 3 Vertical distribution (total range) of selected taxa of larger benthic foraminifera and dasycladalean algae in the Tarbur Formation of the Mandegan section.
Fig. 1 in On The Occurrence Of Salpingoporella Pasmanica Radoičić, 2002, (Dasycladales) From The Late Maastrichtian Of The Zagros Zone, Sw Iran
Fig. 1 Lithostratigraphy of the Late Cretaceous of the Zagros Zone, Iran (excerpt from the Stratigraphic Chart of Iran).
FIGURE 77. Hoploscaphites peterseni, microconchs. A–C. AMNH 76304, AMNH loc. 3921 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 77. Hoploscaphites peterseni, microconchs. A–C. AMNH 76304, AMNH loc. 3921, upper Baculites baculus Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. A, Right lateral; B, apertural; C, ventral. D–F. AMNH 76402, AMNH loc. 3921, Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. D, Right lateral; E, apertural; F, ventral. G–I. AMNH 76400, paratype, AMNH loc. 3921, Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana G, Right lateral; H, apertural; I, ventral. Arrow indicates the base of the body chamber.
FIGURE 74. Hoploscaphites peterseni, macroconchs. A. USNM 723231 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 74. Hoploscaphites peterseni, macroconchs. A. USNM 723231, left lateral, USGS loc. 22142, Baculites eliasi Zone, Bearpaw Shale, Valley County, Montana. The coarse ornamentation on the inner whorls is visible. Arrow indicates the base of the body chamber. B, C. AMNH 73031, left lateral, fragment with the body chamber attached (B) and removed (C), B. baculus Zone, AMNH loc. 3921, Pierre Shale, Cedar Creek Anticline, east-central Montana. The ornamentation on the inner whorls consists of widely spaced ribs and ventrolateral tubercles.
FIGURE 76. Hoploscaphites peterseni, microconchs. A–D. AMNH 135087, AMNH loc. 3921 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 76. Hoploscaphites peterseni, microconchs. A–D. AMNH 135087, AMNH loc. 3921, Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. E–H. AMNH 77597, AMNH loc. 3246, Baculites baculus or lower B. grandis Zone, Pierre Shale, southwest of Wibaux (= Mingusville), Wibaux County, Montana. E, Right lateral; F, apertural; G, ventral; H, left lateral. I–L. AMNH 134704, Pierre Shale, Cedar Creek Anticline, east-central Montana. I, Right lateral; J, apertural; K, ventral; L, left lateral. Arrow indicates the base of the body chamber.
FIGURE 78. Hoploscaphites peterseni, microconchs. A–D. AMNH 135978, AMNH loc. 3921 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 78. Hoploscaphites peterseni, microconchs. A–D. AMNH 135978, AMNH loc. 3921, Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. E–H. AMNH 76311, AMNH loc. 3921, Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. Note the difference in umbilical diameter between the left and right sides due to a growth deformity. E, Right lateral; F, apertural; G, ventral; H, left lateral. I–L. BHI 4893, Pierre Shale, Cedar Creek Anticline, east-central Montana. I, Right lateral; J, apertural; K, ventral; L, left lateral. The two rows of ventrolateral tubercles have merged into a single row of midventral tubercles due to a sublethal injury. Arrow indicates the base of the body chamber.
FIGURE 67 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 67. Hoploscaphites peterseni, macroconch, paratype. A–D. USNM 723217, USGS loc. 23399, Baculites eliasi zone, Bearpaw Shale, Valley County, Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. Arrow indicates the base of the body chamber.
FIGURE 71. Hoploscaphites peterseni, macroconch. A–D. SDSM 149990 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 71. Hoploscaphites peterseni, macroconch. A–D. SDSM 149990, Baculites baculus or lower B. grandis Zone, Pierre Shale, Dawson County, Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. Arrow indicates the base of the body chamber.
FIGURE 65. Hoploscaphites peterseni, macroconch. A–D. BHI 4128 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 65. Hoploscaphites peterseni, macroconch. A–D. BHI 4128, probably Baculites eliasi Zone, Bearpaw Shale, Valley County, Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. Arrow indicates the base of the body chamber.
FIGURE 64. Hoploscaphites peterseni, macroconch. A–D. SDSM 149991 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 64. Hoploscaphites peterseni, macroconch. A–D. SDSM 149991, Baculites baculus or lower B. grandis Zone, Pierre Shale, Dawson County, Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. Arrow indicates the base of the body chamber.
FIGURE 75. Hoploscaphites peterseni, microconchs. A–D. AMNH 105901 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 75. Hoploscaphites peterseni, microconchs. A–D. AMNH 105901, paratype, AMNH loc. 3921, upper Baculites baculus Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. E–H. BHI 4129, Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. E, Right lateral; F, apertural; G, ventral; H, left lateral. Arrow indicates the base of the body chamber.
FIGURE 62. Hoploscaphites peterseni, macroconch. A–D. AMNH 71932, AMNH loc. 3921 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 62. Hoploscaphites peterseni, macroconch. A–D. AMNH 71932, AMNH loc. 3921, Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. Arrow indicates the base of the body chamber.
FIGURE 60 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 60. Hoploscaphites peterseni, macroconch, holotype. A–D. AMNH 71848, AMNH loc. 3921, Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. Arrow indicates the base of the body chamber.
FIGURE 56 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 56. Hoploscaphites plenus (Meek and Hayden, 1860), microconchs. A–C. AMNH 135970, AMNH loc. 3921, lower Baculites baculus Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. A, Right lateral; B, apertural; C, ventral. D–G. AMNH 135991, AMNH loc. 3921, Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. D, Right lateral; E, apertural; F, ventral; G, left lateral. H–K. USNM 366 (cast of holotype of Scaphites nodosus var. quadrangularis), illustrated in Meek (1876: pl. 25, fig. 3a-c), said to be from the Pierre Shale on the "Yellowstone River, Montana, 150 miles above its mouth," and probably, more specifically, from the Cedar Creek Anticline, Dawson County, Montana. H, Right lateral; I, apertural; J, ventral; K, left lateral. Arrow indicates the base of the body chamber.
FIGURE 70. Hoploscaphites peterseni, macroconch. A–D. AMNH 105906 in LARGE SCAPHITID AMMONITES (HOPLOSCAPHITES) FROM THE UPPER CRETACEOUS (UPPER CAMPANIAN–LOWER MAASTRICHTIAN) OF NORTH AMERICA: ENDLESS VARIATION ON A SINGLE THEME
FIGURE 70. Hoploscaphites peterseni, macroconch. A–D. AMNH 105906, paratype, robust specimen, AMNH loc. 3921, lower Baculites baculus Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. A, Right lateral; B, apertural; C, ventral; D, left lateral. Arrow indicates the base of the body chamber.
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