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Bigaella orbitoidiformis

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Journal Article
Published: 01 July 2022
Journal of Paleontology (2022) 96 (4): 737–752.
... chambers. The cyclical chamber arrangement is later transformed into annular cycles with numerous, complex arcuate- to cup-shaped chamberlets, as observed in equatorial sections. Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp., is established for these specimens...
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Statistical data of  <span class="search-highlight">Bigaella</span> <span class="search-highlight">orbitoidiformis</span>  Özcan, Mitchell, Pignatti, S...
Published: 01 July 2022
Table 1. Statistical data of Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp. TD = Test diameter, T1 = thickness of test at the central part of test, T2 = thickness of test at the peripheral part of test, HEL1 = thickness of the equatorial layer
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Equatorial sections of  <span class="search-highlight">Bigaella</span> <span class="search-highlight">orbitoidiformis</span>  Özcan, Mitchell, Pignatti...
Published: 01 July 2022
Figure 8. Equatorial sections of Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp., from the Şevketiye Formation showing its embryonic-nepionic stages. Note the lobate outline of the third chamber, which is a very characteristic feature. ( 1–5 ) Şevketiye
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Equatorial sections of  <span class="search-highlight">Bigaella</span> <span class="search-highlight">orbitoidiformis</span>  Özcan, Mitchell, Pignatti...
Published: 01 July 2022
Figure 9. Equatorial sections of Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp., from the Şevketiye Formation showing the transition from cyclical chamberlets to annular chambers with complex internal structures. The stolons of annular chambers
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Stratigraphic columns of the Şevketiye Formation in the Şevketiye and Çamyu...
Published: 01 July 2022
Figure 2. Stratigraphic columns of the Şevketiye Formation in the Şevketiye and Çamyurt sections and position of the samples ŞEV6, ŞEV 7, and ÇAM14-17 with Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp. SBZ = Shallow Benthic Zones by Serra-Kiel et al
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( 1, 2 ) External views, ( 3 ) sub-axial, ( 4 ) axial, and ( 5, 6 ) equator...
Published: 01 July 2022
Figure 4. ( 1, 2 ) External views, ( 3 ) sub-axial, ( 4 ) axial, and ( 5, 6 ) equatorial sections of Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp., from the Şevketiye Formation. ( 1, 2 , 4 , 6 ) SBZ 17 or 18A, Bartonian or late Bartonian–early
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Line drawings of the embryonic and peri-embryonic chambers/chamberlets of  ...
Published: 01 July 2022
Figure 7. Line drawings of the embryonic and peri-embryonic chambers/chamberlets of Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp., from the Şevketiye Formation. ( 1, 2 , 5 , 7 ) Çamyurt Section, SBZ 19A, Priabonian; ( 3, 4 , 6 ) Şevketiye Section; SBZ
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( 1–5, 8–10 ) Equatorial ( 6, 7 ) axial, and ( 11 ) sub-axial sections of  ...
Published: 01 July 2022
Figure 6. ( 1–5, 8–10 ) Equatorial ( 6, 7 ) axial, and ( 11 ) sub-axial sections of Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp., from the Şevketiye Formation. ( 1–6 ) Şevketiye Section; SBZ 17/18A, Bartonian or late Bartonian–early Priabonian. ( 7–11
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Line drawings of the embryonic and peri-embryonic chambers/chamberlets of  ...
Published: 01 July 2022
Figure 5. Line drawings of the embryonic and peri-embryonic chambers/chamberlets of Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp. from the Şevketiye Formation. ( 1–3 ) Şevketiye Section, SBZ 17/18A, Bartonian or late Bartonian-early Priabonian. ( 4
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Field photographs of the upper part of the Şevketiye Formation near Çamyurt...
Published: 01 July 2022
Figure 3. Field photographs of the upper part of the Şevketiye Formation near Çamyurt and Şevketiye villages in the Biga Peninsula and locations of the samples with Bigaella orbitoidiformis Özcan, Mitchell, Pignatti, Simmons, and Yücel, n. gen. n. sp. Characteristic LBFs at both localities
Journal Article
Published: 01 July 2022
Journal of Paleontology (2022) 96 (4): f1–f2.
... Ercan Özcan, Simon F. Mitchell, Johannes Pignatti, Michael D. Simmons, Ali Osman Yücel, and Natalie Robinson A new, complex hyaline larger benthic foraminifer, Bigaella orbitoidiformis n. gen. n. sp., from the upper Bartonian-Priabonian of NW Turkey 753 Katherine A. Turk, Katie M. Maloney, Marc La amme...