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Fig. 75 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 75. Plot of the ratio of umbilical diameter (UD/D) to shell diameter versus shell diameter (mm) in Hoploscaphites nodosus (Owen, 1852) in early (top graph) and later ontogeny (bottom graph; see figs. 72, 73 for illustrations of cross sections on which these graphs are based, and appendix 2, tables 1–3, for a list of measurements). The ratio decreases through most of ontogeny until a shell diameter of approximately 20 mm, after which it remains nearly the same until the beginning of the mature body chamber. Filled symbols indicate measurements in the mature body chamber.
Fig. 109 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 109. Hoploscaphites brevis (Meek, 1876), small microconchs. A–D. BHI 4252, Baculites cuneatus Zone, Pierre Shale, Meade County, South Dakota. A. Right lateral; B. apertural; C. ventral; D. left lateral. E–H. YPM 35586, YPM A6520, Pierre Shale, Sage Creek, Pennington County, South Dakota. E. Right lateral; F. apertural; G. ventral; H. left lateral. I–L. BHI 4249, Baculites compressus–B. cuneatus zones, Pierre Shale, Meade County, South Dakota. I. Right lateral; J. apertural; K. ventral; L. left lateral. M–P. USNM 536250, locality unknown, but probably Pierre Shale, Pennington County, South Dakota. M. Right lateral; N. apertural; O. ventral; P. left lateral. Specimens are illustrated natural size.
Fig. 99 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 99. Hoploscaphites brevis (Meek, 1876), small macroconchs. A–D. YPM 35585, YPM loc. A6520, Pierre Shale, Sage Creek, Pennington County, South Dakota. A. Right lateral; B. apertural; C. ventral; D. left lateral. E–H. BHI 4250, Baculites compressus–B. cuneatus zones, Pierre Shale, Meade County, South Dakota. E. Right lateral; F. apertural; G. ventral; H. left lateral. I–L. BHI 4311, Baculites compressus–B.
Fig. 116 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 116. Septal approximation at maturity in Hoploscaphites brevis (Meek, 1876). A–C. Macroconchs. A. BHI 7034, Baculites cuneatus Zone, Pierre Shale, Pennington County, South Dakota. Septal approximation occurs over three chambers and is strong (the interseptal distance of the last chamber is
Fig. 74 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 74. Plot of the ratio of whorl width to height (W/H) versus shell diameter (mm) in Hoploscaphites nodosus (Owen, 1852) in early (top graph) and later ontogeny (bottom graph; see figs. 72, 73 for illustrations of cross sections on which these graphs are based, and appendix 2, tables 1–3, for a list of measurements). The ratio of whorl width to height decreases through most of ontogeny until the beginning of the mature phragmocone, after which it increases. Filled symbols indicate measurements in the mature body chamber.
Fig. 104 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 104. Hoploscaphites brevis (Meek, 1876), large microconchs, locality unknown, but probably Pierre Shale, Pennington County, South Dakota. A–C. USNM 536242. A. Apertural; B. ventral; C. left lateral. D–F. USNM 536241. D. Apertural; E. ventral; F. left lateral. Specimens are illustrated natural size.
Fig. 73. Dorsoventral cross section through a in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 73. Dorsoventral cross section through a robust microconch of Hoploscaphites nodosus (Owen, 1852), USNM 536246, USGS Mesozoic loc. 9133, Pierre Shale, near Kremmling, Grand County, Colorado. The plane of the cross section approximately coincides with the line of maximum length. A. Camera lucida of cross section of the adult shell. The stippled area demarcates the mature body chamber. B. Camera lucida of cross section of the inner whorls. C. Photo of cross section of the inner whorls. Measurements are listed in appendix 2, table 3.
Fig. 71 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 71. Hoploscaphites nodosus (Owen, 1852), microconchs, Baculites cuneatus Zone, Pierre Shale, near the junction of the Belle Fourche and Cheyenne Rivers, Meade County, South Dakota. A–C. BHI 4791. A. Right lateral; B. apertural; C. ventral. D, E. BHI 4794, massive body chamber. D. Right lateral; E. ventral. Specimens are illustrated natural size.
Fig. 92 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 92. Hoploscaphites brevis (Meek, 1876), large macroconchs, Baculites compressus Zone, Pierre Shale, Meade County, South Dakota. A–C. BHI 4204, more elongate than holotype. A. Apertural; B. ventral; C. left lateral. D–F. BHI 4205, more elongate than holotype. D. Right lateral; E. apertural; F. ventral. Specimens are illustrated natural size.
Fig. 113 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 113. Plot of the ratio of whorl width to whorl height (W/H) versus shell diameter (mm) in Hoploscaphites brevis (Meek, 1876) in early (top graph) and later ontogeny (bottom graph; see figs. 110– 112 for illustrations of cross sections on which these graphs are based, and appendix 2, tables 4–6, for a list of measurements). The ratio decreases through most of ontogeny until the beginning of the mature phragmocone, after which it sometimes increases. Filled symbols indicate measurements in the mature body chamber.
Fig. 112. Dorsoventral cross section through a in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 112. Dorsoventral cross section through a small microconch of Hoploscaphites brevis (Meek, 1876), AMNH 58555, Pierre Shale, Meade or Pennington County, South Dakota. The plane of the cross section approximately coincides with the line of maximum length. A. Camera lucida of cross section of the adult shell. The stippled area demarcates the mature body chamber. B. Camera lucida of cross section of the inner whorls. C. Photo of cross section of the inner whorls. Measurements are listed in appendix 2, table 6.
Fig. 95 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 95. Hoploscaphites brevis (Meek, 1876), large macroconchs. A, B. AMNH 46642, AMNH loc. 3207, Pierre Shale, Baculites compressus–B. cuneatus zones, Pierre Shale, Pennington County, South Dakota. A. Right lateral; B. apertural. C, D. BHI 4911a, Baculites compressus–B. cuneatus zones, Pierre Shale, Pennington County, South Dakota. C. Right lateral; D. ventral. Specimens are illustrated natural size.
Fig. 72. Dorsoventral cross section through a in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 72. Dorsoventral cross section through a slender macroconch of Hoploscaphites nodosus (Owen, 1852), AMNH 9520/2, Pierre Shale, Sage Creek, Pennington County, South Dakota. The plane of the cross section approximately coincides with the line of maximum length. A. Camera lucida of cross section of the adult shell. The stippled area demarcates the mature body chamber. B. Camera lucida of cross section of the inner whorls. C. Photo of cross section of the inner whorls. Measurements are listed in appendix 2, table 1.
Fig. 70 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 70. Hoploscaphites nodosus (Owen, 1852), microconchs, USGS Mesozoic loc. 21224, Bearpaw Shale, near Hardin, Big Horn County, Montana. A, B. USNM 536232. A. Right lateral; B. ventral. C, D. USNM 538103. C. Right lateral; D. ventral. Specimens are illustrated natural size.
Fig. 67 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 67. Hoploscaphites nodosus (Owen, 1852), large microconch, AMNH 58554, AMNH loc. 3409, Baculites cuneatus Zone, Pierre Shale, Meade County, South Dakota. A. Right lateral; B. apertural; C. ventral; D. left lateral. Specimen is illustrated natural size.
Fig. 53. A, B in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 53. A, B. Hoploscaphites nodosus (Owen, 1852), macroconchs. A, B. AMNH 45343, more compact and finely ribbed than holotype, AMNH loc. 3212, Baculites compressus–B. cuneatus zones, Shannon
Fig. 66 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 66. Hoploscaphites nodosus (Owen, 1852), large microconch, AMNH 58521, Pierre Shale, Baculites compressus Zone, Meade County, South Dakota. A. Right lateral; B. apertural; C. ventral; D. left lateral. Specimen is illustrated natural size.
Fig. 59 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 59. Scaphites, cold seep, AMNH loc. 3418, Didymoceras cheyennense Zone, Pierre Shale, Custer County, South Dakota. A–C. Hoploscaphites brevis (Meek, 1876), small microconch, AMNH 56885. A. Right lateral; B. apertural; C. ventral. D–E. Fragment of a phragmocone of Hoploscaphites nodosus
Fig. 63 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 63. Hoploscaphites nodosus (Owen, 1852), large microconch, BHI 4710, Baculites compressus–B. cuneatus zones, Pierre Shale, Meade County, South Dakota. A. Right lateral; B. apertural; C. ventral; D. left lateral. Specimen is illustrated natural size.
Fig. 65 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America
Fig. 65. Hoploscaphites nodosus (Owen, 1852), large microconch, BHI 4723, Baculites compressus–B. cuneatus zones, Pierre Shale, Pennington County, South Dakota. A. Right lateral; B. apertural; C. ventral; D. left lateral. Specimen is illustrated natural size.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.