Foraminifera source details
Wang, Y. J.; Cheng, J. F.; Zhang, Y. D. (2008). New Radiolarian genera and species of Heituao Formation (Ordovician) in the Kuruktag Region, Xinjiang. Acta Palaeontologica. 47(4): 393-404.
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Wang, Y. J.; Cheng, J. F.; Zhang, Y. D.
2008
New Radiolarian genera and species of Heituao Formation (Ordovician) in the Kuruktag Region, Xinjiang.
Acta Palaeontologica
47(4): 393-404
Publication
A rich radiolarian fauna is discovered in the chert of the Middle Ordovician Heituao Formation in Kuruktag region,Xinjiang. The fauna is characterized by abundant spherical spumellarians,members of Family Inaniguttidae either with or without outer spines,and some particular groups of uncertain affinities. Ten new species assigned to four new genera and one known genus (Quasibeothuka fusiforma,Q. ovata,Q. ellipsoidala,Q. longifusiforma,Q. bithornya,Batoballa communis,B. longiovata,Protosegmentum xinjiangensis,Tetrasphaera kuruktagensis,Beothuka longispiniforma) are described. Associated with the fauna includes graptolites of the Exigraptus clavus Biozone,which were found from the black shale of this formation,indicating Dapingian age (Middle Ordovician). Based on the radiolarian fauna,Tetrasphaera kuruktagensis Biozone is identified,which includes two subzones,a lower Protosegmentum xinjiangensis Subzone and an upper Quasibeothuka fusiforma Subzone. This formation may be considered as a potential hydrocarbon source rock.
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Quasibeothuka Wang in Wang et al., 2008 † accepted as Amphitremoida Eisenack, 1938 † (original description)
Quasibeothuka bithornya Wang in Wang et al., 2008 † (original description)
Quasibeothuka ellipsoidala Wang in Wang et al., 2008 † (original description)
Quasibeothuka fusiforma Wang in Wang et al., 2008 † (original description)
Quasibeothuka longifusiforma Wang in Wang et al., 2008 † (original description)
Quasibeothuka ovata Wang in Wang et al., 2008 † (original description)
Quasibeothuka bithornya Wang in Wang et al., 2008 † (original description)
Quasibeothuka ellipsoidala Wang in Wang et al., 2008 † (original description)
Quasibeothuka fusiforma Wang in Wang et al., 2008 † (original description)
Quasibeothuka longifusiforma Wang in Wang et al., 2008 † (original description)
Quasibeothuka ovata Wang in Wang et al., 2008 † (original description)