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Geonettia

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Journal Article
Published: 01 September 2000
Journal of Paleontology (2000) 74 (5): 812-827.
...MARTIN J. HEAD Abstract A new species of the unusual dinoflagellate cyst genus Geonettia de Verteuil and Norris, 1996a is here described from the Pliocene of the western North Atlantic and eastern England. Geonettia waltonensis new species is only the second species to be formally described...
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Journal Article
Published: 01 July 1996
Micropaleontology (1996) 42 (3): 263-284.
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Figure  1 —Location of sites where  <b>Geonettia</b> waltonensis  n. sp. and  Geon...
Published: 01 September 2000
Figure 1 —Location of sites where Geonettia waltonensis n. sp. and Geonettia sp. have been found. Geonettia waltonensis n. sp. is reported from the Pliocene of: DSDP Site 603, lower continental rise off New Jersey; Walton-on-the-Naze and Rockhall Wood, eastern England (A); and the Kalmthout
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Figure  2 —Exploded view showing the tabulation in  <b>Geonettia</b> waltonensis  ...
Published: 01 September 2000
Figure 2 —Exploded view showing the tabulation in Geonettia waltonensis n. sp. Notation: pr = preapical; 1′–4′ = apical series, 1″–6″ = precingular series; 1c–6c = cingular series; spc = sulcal plate complex (which includes as = anterior sulcal plate, rs = right sulcal plate, ls = left sulcal
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Figure  4 —Comparison of hypotabulation in  <b>Geonettia</b> waltonensis  n. sp., ...
Published: 01 September 2000
Figure 4 —Comparison of hypotabulation in Geonettia waltonensis n. sp., Geonettia clineae de Verteuil and Norris, 1996a , Capisocysta lata Head, 1998a , and Capisocysta lyellii Head, 1998a . Note striking similarities between Geonettia waltonensis and Capisocysta lata which include
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Figure  5 —Proposed phylogeny in the  Eocladopyxis – <b>Geonettia</b> – Capisocyst...
Published: 01 September 2000
Figure 5 —Proposed phylogeny in the Eocladopyxis – Geonettia – Capisocysta complex. A broad solid line indicates known stratigraphic occurrence, a broad dashed line indicates a questionable range, and a narrow dashed line indicates suggested evolutionary relationship. Stratigraphic ranges
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Figure  6 —Holotype of  <b>Geonettia</b> waltonensis  n. sp. from DSDP Hole 603C. ...
Published: 01 September 2000
Figure 6 —Holotype of Geonettia waltonensis n. sp. from DSDP Hole 603C. Tracings are based on the specimen illustrated in Figure 7.1 – 7.3. Dashed lines do not necessarily indicate real order of overlap. See Figure 2 for plate notation. 1, 2, right lateral view of 1, right lateral
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Figure  7 — <b>Geonettia</b> waltonensis  n. sp. Photomicrographs are in phase con...
Published: 01 September 2000
Figure 7 — Geonettia waltonensis n. sp. Photomicrographs are in phase contrast. Various magnifications. 1 – 3, holotype of Geonettia waltonensis from DSDP Hole 603C. Right lateral views at high through low focus. See Figure 6 for tracings and interpretation. Sample DSDP-603C-8-5, 100–102
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Figure  8 — <b>Geonettia</b> waltonensis  n. sp. from the Coralline Crag Formation...
Published: 01 September 2000
Figure 8 — Geonettia waltonensis n. sp. from the Coralline Crag Formation, Rockhall Wood, Suffolk. Photomicrographs are in phase contrast. 2 and 4 are tracings of the specimen in 1 and 3. Dashed lines on 2 and 4 do not necessarily indicate real order of overlap. See Figure 2
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Figure  9 — <b>Geonettia</b> waltonensis  n. sp. Photomicrographs are in phase con...
Published: 01 September 2000
Figure 9 — Geonettia waltonensis n. sp. Photomicrographs are in phase contrast. Dashed lines on 2 do not necessarily indicate real order of overlap. See Figure 2 for plate notation. 1 – 3, dorsal views of the partially separated plates of a detached hypocyst, with 1 at slightly higher
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Figure  10 — <b>Geonettia</b> waltonensis  n. sp. from the Coralline Crag Formatio...
Published: 01 September 2000
Figure 10 — Geonettia waltonensis n. sp. from the Coralline Crag Formation, Rockhall Wood, Suffolk. 1 is a phase contrast photomicrograph, and 2 is a tracing of the specimen in 1. Dashed lines on 2 do not necessarily indicate real order of overlap. See Figure 2 for plate notation. 1
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Figure  11 — <b>Geonettia</b>  sp. from the upper Miocene of ODP Hole 645E, Baffin...
Published: 01 September 2000
Figure 11 — Geonettia sp. from the upper Miocene of ODP Hole 645E, Baffin Bay. Tracings are based on the specimen illustrated in Figure 12. Dashed lines do not necessarily indicate real order of overlap. See Figure 2 for plate notation. 1, 2, Ventral views of 1, ventral surface and 2
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Figure  12 — <b>Geonettia</b>  sp. from the upper Miocene of ODP Hole 645E, Baffin...
Published: 01 September 2000
Figure 12 — Geonettia sp. from the upper Miocene of ODP Hole 645E, Baffin Bay. Photomicrographs are in phase contrast. 1 – 4 , Ventral views of 1 ventral surface; 2 – 4 progressively lower foci to dorsal surface. See Figure 11 for tracings and interpretation. Sample ODP 645E-7R, CC
Journal Article
Published: 01 January 2007
Geological Magazine (2007) 144 (1): 33-52.
... of key dinoflagellate cysts constrain the unit between 7.5 and 5.32 Ma, that is, a latest Tortonian to Messinian age. The palynomorph assemblage is characterized, amongst others, by Geonettia clineae , an opportunistic species that thrives in mesotrophic, coastal embayments with a low sediment influx...
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Table  1 —Comparison of morphological features in species of the pyrodinioi...
Published: 01 September 2000
Table 1 —Comparison of morphological features in species of the pyrodinioidean genera Geonettia and Capisocysta
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Figure  3 —Schematic drawings of epitabulation in  Pyrodinium bahamense  Pl...
Published: 01 September 2000
Figure 3 —Schematic drawings of epitabulation in Pyrodinium bahamense Plate, 1906 , Eocladopyxis peniculata Morgenroth, 1966, Geonettia clineae de Verteuil and Norris, 1996a , and Geonettia waltonensis n. sp. Adapted in part from de Verteuil and Norris, 1996a , text- fig. 3 . See Figure
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Selected dinoflagellate cysts from the Olen outcrop and the Dessel-2 boreho...
Published: 01 January 2007
body 48 μm; maximum length processes 3 μm. Sample Olen-8, P1, G19/1. (c, d) Bitectatodinium raedwaldii Head. High focus on (c) lateral side of archaeopyle and (d) optical section. Maximum diameter central body 39 μm; maximum length processes 2.5 μm. Sample Dessel-2 26.35, P1, E43/4. (e–g) Geonettia
Series: GSA Field Guide
Published: 01 January 2017
DOI: 10.1130/2017.0047(05)
EISBN: 9780813756479
... - - - - - Cannosphaeropsis passio - - - X - - Cleistosphaeridium placacanthum X X - - - - Erymnodinium delectabile - - - - X X Geonettia clineae - - - - X X Hystrichosphaeropsis obscura X X X X X X Habibacysta tectata - X X X - X Impagidinium...
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Journal Article
Published: 01 May 2004
Geological Magazine (2004) 141 (3): 353-378.
... cysts + + Geonettia waltonensis + Lejeunecysta hatterasensis 3 Spiniferites elongatus + Trinovantedinium cf. sterthensis + Achomosphaera andalousiensis andalousiensis 6 5 4 3 4 + 4 + 1 Achomosphaera/Spiniferites...
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Journal Article
Journal: Palynology
Published: 03 July 2018
Palynology (2018) 42 (3): 354-365.
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