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Omegops

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Abnormal arrangement of eye lenses in the Late Devonian  <span class="search-highlight">Omegops</span>  from west...
Published: 01 July 2023
Figure 7. Abnormal arrangement of eye lenses in the Late Devonian Omegops from western Junggar, Xinjiang. ( 1, 2 ) Omegops honggulelengensis (BGEG–HB–02): ( 1 ) left eye; ( 2 ) right eye. Lens number is asymmetrical in the seventh and ninth files. ( 3 ) Left eye of Omegops honggulelengensis
Journal Article
Published: 01 July 2023
Journal of Paleontology (2023) 97 (4): 891–905.
...Figure 7. Abnormal arrangement of eye lenses in the Late Devonian Omegops from western Junggar, Xinjiang. ( 1, 2 ) Omegops honggulelengensis (BGEG–HB–02): ( 1 ) left eye; ( 2 ) right eye. Lens number is asymmetrical in the seventh and ninth files. ( 3 ) Left eye of Omegops honggulelengensis...
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The frequency distribution of eye lens numbers: ( 1 )  <span class="search-highlight">Omegops</span> hongguleleng...
Published: 01 July 2023
Figure 6. The frequency distribution of eye lens numbers: ( 1 ) Omegops honggulelengensis n. sp.; ( 2 ) Omegops xiangi n. sp. From the Upper Devonian Hongguleleng Formation in western Junggar, NW China.
Journal Article
Published: 01 July 2023
Journal of Paleontology (2023) 97 (4): 958.
...Rui-Wen Zong Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of The Paleontological Society 2023 The Author(s) Recently, Zong ( 2023 ) described two new species of phacopid trilobites, namely Omegops honggulelengensis Zong, 2023 and Omegops xiangi...
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Plot of eye lens number versus cephalic length. ( 1, 2 )  <span class="search-highlight">Omegops</span> honggulel...
Published: 01 July 2023
Figure 8. Plot of eye lens number versus cephalic length. ( 1, 2 ) Omegops honggulelengensis n. sp. ( 3, 4 ) Omegops xiangi n. sp. From the Upper Devonian Hongguleleng Formation in western Junggar, NW China.
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( 1, 2 ) Fossil locality maps of the Late Devonian  <span class="search-highlight">Omegops</span>  in western Jun...
Published: 01 July 2023
Figure 1. ( 1, 2 ) Fossil locality maps of the Late Devonian Omegops in western Junggar, Xinjiang. ( 3 ) Stratigraphic column of the Hongguleleng Formation, stratigraphic distribution of Omegops , and the horizon of samples collected in this study (blue arrow). Conodont biozones after Suttner
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( 1, 2 )  <span class="search-highlight">Omegops</span> honggulelengensis  n. sp.: ( 1 ) length versus width of c...
Published: 01 July 2023
Figure 3. ( 1, 2 ) Omegops honggulelengensis n. sp.: ( 1 ) length versus width of cephalon; ( 2 ) length of cephalon versus maximum width of glabella. ( 3, 4 ) Omegops xiangi n. sp.: ( 3 ) length versus width of cephalon; ( 4 ) length of cephalon versus maximum width of glabella. From
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Schematic representations of eye lenses: ( 1, 2 )  <span class="search-highlight">Omegops</span> honggulelengensi...
Published: 01 July 2023
Figure 5. Schematic representations of eye lenses: ( 1, 2 ) Omegops honggulelengensis n. sp.; ( 3, 4 ) Omegops xiangi n. sp. From the Upper Devonian Hongguleleng Formation in western Junggar, NW China. The number in each circle represents the number of individuals carrying a lens
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<span class="search-highlight">Omegops</span> honggulelengensis  n. sp. from the Upper Devonian Fammenian Honggul...
Published: 01 July 2023
Figure 2. Omegops honggulelengensis n. sp. from the Upper Devonian Fammenian Hongguleleng Formation in western Junggar, NW China. ( 1–7 ) Cephalon (BGEG–HB–59): ( 1 ) dorsal view; ( 2 ) left side view; ( 3 ) right side view; ( 4 ) anterior view; ( 5 ) ventral view; ( 6, 7 ) close-ups
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<span class="search-highlight">Omegops</span> xiangi  n. sp. from the Upper Devonian Famennian Hongguleleng Forma...
Published: 01 July 2023
Figure 4. Omegops xiangi n. sp. from the Upper Devonian Famennian Hongguleleng Formation in western Junggar, NW China. ( 1–4 ) The exuvia consist of enrolled thoracopygon and isolated cephalon (BGEG–HB–04): ( 1, 3 ) dorsal and side views of exuvia; ( 2 ) dorsal view of pygidium and some
Series: GSA Special Papers
Published: 01 January 1981
DOI: 10.1130/SPE187-p183
..., and one subspecies are represented: Typhloproetus laevis sp. nov., Chaunoproetus daihuaensis sp. nov., Dianops guizhouensis sp. nov., Phacops (Omegops) accipitrinus mobilis subsp. nov. and a phacoid, gen. et sp. indet. These are associated with ammonoids. It the latest Devonian the ammonoid...
Journal Article
Published: 16 May 2013
Geological Magazine (2013) 150 (6): 1002–1021.
... Ouarourout and Bou Mehaoud and Omegops bergicus from the ‘oued’ Khorb el Ethel. There is also a drawing of a cephalon of Phacops sp. from Tamtert (Termier & Termier, 1950 ; pl. CCVI, fig. 16). As observed in other areas from the northern peri-Gondwanian margin...
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Journal Article
Published: 01 November 2007
Bulletin de la Société Géologique de France (2007) 178 (6): 473–483.
... of filling [ Thorez et al . 2006 ; Bultynck and Dejonghe, 2002 ]. A record of a Famennian trilobite, Phacops (Omegops) accipitrinus maretiolensis R ichter & R ichter , 1933, seems to exist [ Rome, 1936 ; Struve, 1976 ]. Nevertheless, no new samples were collected in this study. At the Couvin...
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Journal Article
Published: 01 January 2008
Bulletin de la Société Géologique de France (2008) 179 (1): 89–95.
... (Trilobita), 9: Phacops (Omegops) n. sg. (Trilobita; Ober-devon) .” Senckenb. lethaea , 56 , 429 – 451 . Viersen van A. P. ( 2004 ). “ De mythe van Phacops latifrons .” Grondboor & Hamer , 58 , 66 – 68 . Viersen van A. P. ( 2005 ). “ Devonian trilobites from the Ardennes...
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Journal Article
Published: 01 May 2006
Journal of Paleontology (2006) 80 (3): 529–536.
... meraspides and early holaspides of Phacops ( Omegops ) accipitrinus ( Phillips, 1841 ) from the late Famennian of Erfoud, Southeast Morocco ( H. Alberti, 1972 ); and early holaspides of Phacops zinkeni Jahnke, 1969 from the Early Devonian of Kellerwald, Germany. Protaspides of Phacops are not yet...
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Journal Article
Published: 01 July 2007
Journal of Paleontology (2007) 81 (4): 684–700.
... of Phacops ( Omegops ) accipitrinus ( Phillips, 1841 ) from the late Famennian of Erfoud, southeast Morocco ( Alberti, 1972 ), and early holaspides of “ Phacops ” zinkeni Roemer, 1843 ( Jahnke, 1969 ) from the Early Devonian of Kellerwald, Germany. Protaspides of Phacops have not previously been...
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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP423.9
EISBN: 9781862399556
... , and the genus Rabienops (‘ Phacops’ granulatus Group) with median-sized eyes, died out at the onset of the HBS. The shallow-water genus Omegops , however, obviously survived in Xinjiang briefly into the lower/middle crisis interval, based on co-occurrences with miospores of the LN Zone and the youngest...
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