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He, W.; Zhang, K.; Chen, Z.-Q.; Yan, J.; Yang, T.; Zhang, Y.; Gu, S.; Wu, S. (2015). A new genus Liaous of early Anisian Stage (Middle Triassic) brachiopods from southwestern China: systematics, reassessment of classification of the Spiriferinioidea, community paleoecology, and paleoenvironmental implications. Journal of Paleontology. 89(6): 966-979.
465946
10.1017/jpa.2016.6 [view]
He, W.; Zhang, K.; Chen, Z.-Q.; Yan, J.; Yang, T.; Zhang, Y.; Gu, S.; Wu, S.
2015
A new genus <i>Liaous</i> of early Anisian Stage (Middle Triassic) brachiopods from southwestern China: systematics, reassessment of classification of the Spiriferinioidea, community paleoecology, and paleoenvironmental implications
Journal of Paleontology
89(6): 966-979
Publication
Available for editors
This paper describes a new genus Liaous, with L. shaiwensis He and Chen n. gen. n. sp. as the type species, from the Xinyuan Formation of Anisian age in Ziyun, southern Guizhou, China. The phylogenetic tree revealed by the parsimony analysis shows that Liaous is closely allied to both Mentzelia Quenstedt, 1871 and Paramentzelia Xu, 1978 of the subfamily Mentzeliinae. A new classification scheme for the Spiriferinoidea is also proposed based on a phylogenetic tree of the superfamily indicated by parsimony analysis. The Spiriferinoidea includes three families and nine subfamilies. Three new subfamilies—Madoinae He and Chen, new subfam., Qinghaispiriferininae He and Chen, new subfam., and Triadispirinae He and Chen, new subfam. are proposed. Liaous shaiwensis He and Chen n. gen. n. sp. is found in the Posidonia wengensis-Liaous shaiwensis (P-L)
paleocommunity, which is dominated by r-strategists (i.e., organisms defined by a fauna with a high dominance and small body sizes) and has a low diversity and high dominance. The P-L paleocommunity therefore has little similarity to its coeval communities from the Anisian Stage of South China and instead it appears more similar to the Lower Triassic shelly faunas in community structures. This paleocommunity is interpreted to have inhabited a relatively deep, low-energy, dysaerobic offshore basin/slope setting with the influence of episodic storms.
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Calyptoria Cooper, 1989 † (taxonomy source)
Jiangdaspiriferina Chen, Rao, Zou, & Pan, 1986 † (taxonomy source) Jiangdaspiriferinae Carter in Carter et al., 1994 † (taxonomy source) Liaous He & Chen, in He et al., 2015 † (original description) Liaous shaiwensis He & Chen, in He et al., 2015 † (original description) Liospiriferina Rousselle, 1977 † (taxonomy source) Madoia Sun & Ye, 1982 † (basis of record) Madoinae He & Chen, in He et al., 2015 † (original description) Mentzelia Quenstedt, 1871 in 1868-1871 † (taxonomy source) Mentzeliidae Dagys, 1974 † (taxonomy source) Mentzeliinae Dagys, 1974 † (taxonomy source) Mentzelioides Dagys, 1974 † (taxonomy source) Mentzeliopsis Trechman, 1918 † (taxonomy source) Paralaballa Sun, 1981 † (taxonomy source) Paralaballinae Carter in Carter et al., 1994 † (taxonomy source) Paramentzelia Xu, 1978 † (taxonomy source) Qinghaispiriferina Sun & Ye, 1982 † (taxonomy source) Qinghaispiriferininae He & Chen, in He et al., 2015 † (original description) Qispiriferina Xu & Liu, 1983 † (taxonomy source) Sinucosta Xu & Liu, 1983 † (basis of record) Sinucostidae Xu & Liu, 1983 † (taxonomy source) Spiriferina d'Orbigny, 1847 † (basis of record) Spiriferinidae Davidson, 1884 † (taxonomy source) Spiriferininae Davidson, 1884 † (taxonomy source) Spondylospiriferina Dagys, 1972 † (taxonomy source) Tethyspira Siblik, 1991 † (taxonomy source) Tethyspirinae Carter in Carter et al., 1994 † (taxonomy source) Triadispira Dagys, 1961 † (taxonomy source) Triadispirinae He & Chen, in He et al., 2015 † (original description) Viligella Dagys, 1965 † (basis of record) |