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Protoheterohelix obscura

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Specimens of Protoheterohelix obscura n. gen., n. sp. from the ODP Leg 171B (Blake Plateau, western North Atlantic). 1–3 Topotype from the lower Cenomanian (Thalmanninella globotruncanoides Biozone), ODP Hole 1050C, Sample 25R–02, 83–87 cm. 4–6 Paratype from the lower Cenomanian (Thalmanninella globotruncanoides Biozone), ODP Hole 1050C, Sample 25–02, 70–72 cm (USNM 534387). 7–9 Paratype from the lower Cenomanian (Thalmanninella globotruncanoides Biozone), ODP Hole 1050C, Sample 25–02, 70–72 cm (USNM 534388). 10–12 Holotype from the lower Cenomanian (Thalmanninella globotruncanoides Biozone), ODP Hole 1050C, Sample 25–02, 70–72 cm (USNM 534383).

Specimens of Protoheterohelix obscura n. gen., n. sp. from the ODP Leg 17... Available to Purchase

Published: 01 October 2009
PLATE 3 Specimens of Protoheterohelix obscura n. gen., n. sp. from the ODP Leg 171B (Blake Plateau, western North Atlantic). 1–3 Topotype from the lower Cenomanian ( Thalmanninella globotruncanoides Biozone), ODP Hole 1050C, Sample 25R–02, 83–87 cm. 4–6 Paratype from the lower Cenomanian
Journal Article

EARLY EVOLUTION OF THE CRETACEOUS SERIAL PLANKTIC FORAMINIFERA (LATE ALBIAN–CENOMANIAN) Available to Purchase

Marius D. Georgescu, Brian T. Huber
Published: 01 October 2009
Journal of Foraminiferal Research (2009) 39 (4): 335–360.
DOI: https://doi.org/10.2113/gsjfr.39.4.335
...PLATE 3 Specimens of Protoheterohelix obscura n. gen., n. sp. from the ODP Leg 171B (Blake Plateau, western North Atlantic). 1–3 Topotype from the lower Cenomanian ( Thalmanninella globotruncanoides Biozone), ODP Hole 1050C, Sample 25R–02, 83–87 cm. 4–6 Paratype from the lower Cenomanian...
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View PDF for article title, EARLY EVOLUTION OF THE CRETACEOUS SERIAL PLANKTIC FORAMINIFERA (LATE ALBIAN–CENOMANIAN)
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Protoheterohelix washitensis (Tappan, 1940) and Pr. obscura (Georgescu & Huber, 2009). Scale bars = 50 μm and all SEMs were taken at the National Museum of Natural History, Washington, D.C., unless otherwise noted. 1–5 Pr. washitensis; 1–3 from lower Cenomanian, Grayson Bluff, Texas, U.S.A: 1, Holotype (USNM CC 25096), originally illustrated as a drawing by Tappan (1940, pl. 19, figs. 1a, b), also figured by Georgescu & Huber (2009, p. 350, pl. 1, figs. 1, 2), new SEMs (1a, b) taken at National Museum of Natural History, Washington D.C.; 2, Paratype (USNM CC 44711), previously unillustrated; 3, Paratype (USNM CC 44711), previously unillustrated; 4, lower Cenomanian (Thalmanninella globotruncanoides Zone), Spl. TDP 24-9-2, 38–55 cm; 5, upper Albian (Parathalmanninella appenninica Zone), western North Atlantic Ocean (Blake Nose), ODP Hole 1050C, Spl. 27-1, 19–21 cm. 6–12Pr. obscura; specimens come from the (Th. globotruncanoides Zone) unless otherwise noted: 6, Paratype (USNM 534384), lower Cenomanian, western North Atlantic Ocean (Blake Nose), ODP Hole 1050C, Spl. 25-02, 70–72 cm, images from Georgescu & Huber (2009, pl. 2, figs. 5, 6); 7, upper Cenomanian, Spl. TDP 24-23-1, 28–38 cm; 8, lower Turonian (Whiteinella archaeocretacea Zone), Spl. TDP 24-5-1, 7–24 cm; 9, lower Cenomanian, Spl. TDP 24-16-1, 76–97 cm; 10, Topotype, lower Cenomanian (age based on Ando et al., 2009), western North Atlantic Ocean (Blake Nose), ODP Hole 1050C, Spl. 25-2, 83–87 cm, images from Georgescu & Huber (2009, pl. 3, figs. 1, 2); 11, 12, upper Cenomanian, Spl. TDP 24-23-1, 28–38 cm.

Protoheterohelix washitensis ( Tappan, 1940 ) and Pr. obscura ( Georgesc... Available to Purchase

Published: 01 January 2015
Figure 4 Protoheterohelix washitensis ( Tappan, 1940 ) and Pr. obscura ( Georgescu & Huber, 2009 ). Scale bars = 50 μm and all SEMs were taken at the National Museum of Natural History, Washington, D.C., unless otherwise noted. 1–5 Pr. washitensis ; 1–3 from lower Cenomanian, Grayson
Image
Width vs. breadth for Protoheterohelix washitensis, Pr. obscura, Planoheterohelix moremani, Pl. postmoremani, and Pl. globulosa. Marker numbers indicate measured specimen’s location on respective figure.

Width vs. breadth for Protoheterohelix washitensis, Pr. obscura, Planohete... Available to Purchase

Published: 01 January 2015
Figure 6 Width vs. breadth for Protoheterohelix washitensis, Pr. obscura, Planoheterohelix moremani, Pl. postmoremani , and Pl. globulosa . Marker numbers indicate measured specimen’s location on respective figure.
Image
Protoheterohelix washitensis(Tappan), 1940 (1–4) and P. obscura n. gen., n. sp. from the ODP Leg 171B (Blake Plateau, western North Atlantic) (5–11). 1–4 Hypotype of P. washitensis from the upper Albian (Parathalmanninella appenninica Biozone), Sample 171B–1052E–40–3, 71–75 cm. 5–8 Paratype of P. obscura from the lower Cenomanian (Thalmanninella globotruncanoides Biozone), ODP Hole 1050C, Sample 25–02, 70–72 cm (USNM 534384). 9–10 Paratype of P. obscura from the lower Cenomanian (Thalmanninella globotruncanoides Biozone), ODP Hole 1050C, Sample 25–02, 70–72 cm (USNM 534385). 11 Paratype of P. obscura from the lower Cenomanian (Thalmanninella globotruncanoides Biozone), ODP Hole 1050C, Sample 25–02, 70–72 cm (USNM 534386).

Protoheterohelix washitensis (Tappan), 1940 (1–4) and P. obscura n. gen... Available to Purchase

Published: 01 October 2009
PLATE 2 Protoheterohelix washitensis (Tappan), 1940 (1–4) and P. obscura n. gen., n. sp. from the ODP Leg 171B (Blake Plateau, western North Atlantic) (5–11). 1–4 Hypotype of P. washitensis from the upper Albian ( Parathalmanninella appenninica Biozone), Sample 171B–1052E–40–3, 71–75 cm
Journal Article

EVOLUTION AND PHYLOGENY OF MID-CRETACEOUS (ALBIAN–CONIACIAN) BISERIAL PLANKTIC FORAMINIFERA Available to Purchase

Shannon J. Haynes, Brian T. Huber, Kenneth G. Macleod
Published: 01 January 2015
Journal of Foraminiferal Research (2015) 45 (1): 42–81.
DOI: https://doi.org/10.2113/gsjfr.45.1.42
...Figure 4 Protoheterohelix washitensis ( Tappan, 1940 ) and Pr. obscura ( Georgescu & Huber, 2009 ). Scale bars = 50 μm and all SEMs were taken at the National Museum of Natural History, Washington, D.C., unless otherwise noted. 1–5 Pr. washitensis ; 1–3 from lower Cenomanian, Grayson...
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Length vs. number of chambers for Protoheterohelix washitensis, Pr. obscura, Planoheterohelix moremani, Pl. postmoremani, and Pl. globulosa. Marker numbers indicate measured specimen’s illustration number on the figure.

Length vs. number of chambers for Protoheterohelix washitensis, Pr. obscur... Available to Purchase

Published: 01 January 2015
Figure 5 Length vs. number of chambers for Protoheterohelix washitensis, Pr. obscura, Planoheterohelix moremani, Pl. postmoremani , and Pl. globulosa. Marker numbers indicate measured specimen’s illustration number on the figure.
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Chamber area measurements. Shaded regions represent measured specimens illustrated on figures. Holotype measurements are indicated by dotted lines. AProtoheterohelix washitensis, Pr. obscura, Planoheterohelix moremani, and Pl. postmoremani. BPl. globulosa and Pl. paraglobulosa.CPl. reussi and Pl. praenuttalli. DHuberella praehuberi and Hu. huberi.

Chamber area measurements. Shaded regions represent measured specimens illu... Available to Purchase

Published: 01 January 2015
Figure 7 Chamber area measurements. Shaded regions represent measured specimens illustrated on figures. Holotype measurements are indicated by dotted lines. A Protoheterohelix washitensis, Pr. obscura, Planoheterohelix moremani, and Pl. postmoremani . B Pl. globulosa and Pl. paraglobulosa