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Plesioperleidus yangtzensis Su, 1981
Images:
By oilshale
Taxonomy
Kingdom: Animalia
Phylum: Chordata
Class: Actinopteri Cope 1871
Order: Perleidiformes Berg 1937
Family: Perleididae Brough 1931
Genus: Plesioperleidus
Species: Plesioperleidus yangtzensis
Author Citation Su, 1981
Geological Time Scale
Eon: Phanerozoic
Era: Paleozoic
Period: Triassic
Sub Period: None
Epoch: Early
International Age: Induan
Stratigraphy
Qingshan Group
Lower Qinglong Formation
Provenance
Acquired by: Purchase/Trade
Location
Qingshan Quarry
Jurong City
Jiangsu Province
China
- induan
- plesioperleidus
- qinglong formation
- qingshan quarry
- tff-oilshale-ch2262
- triassic
- yangtzensis
- zhangina jiangsuensis
Comments
Synonym: Zhangina cylindrica Liu, 2002; Plesioperleidus jiangsuensis Qian 1997
From the sediments of the Lower Qinglong Formation, a number of species (Plesioperleidus, Zhangina, Suis, Jurongia, Quingshania, Peia .. ) have been described, which are difficult to distinguish at first sight and are usually traded either as "Plesioperleidus" or as "Lepidotes".
Diagnosis for Plesioperleidus (Zhangina) jiangsuensis Qian 1997 by Jin et al. p. 182: "Maxilla relatively slender, length of its post-orbital part approximately 1/ 3 of the maxillary length ; scales smooth , with some exceptions slightly ornamented with ridges and with serrated hinder margin."
Line drawing of the head by Jin et al. 2003, p. 174:
Identified by Prof. Guang-Hui Xu, Chinese Academy of Sciences:
'Dear Thomas,
From its op/sop contact, ~50 lateral line scales and striated scales (partly see from some well preserved scales), Ch2262 belongs to Plesioperleidus yangtzensis (Plesioperleidus jiangsuensis is a younger synonym of P. yangtzensis).'References:
D. Su (1981) A New Species of Perleidus from Anhui. Vertebrata PalAsiatica 19(2):107-112.
MP Qian, SP Zhu, FM Zhao, XD Zhou, R Su & GH Gu (1997) Discovery of Early Triassic fish fossils and its significances in Jurong, Jiangsu Province. Jiangsu Geology 21, 65-71, 1997.
Jin, F., Wang, N.Z., Cai, Z.Q., (2003) A revision of the perleidid fishes from the lower Yangtze region of South China-second report on the fish sequence study near the Permian-Triassic boundary in South China. Vertebr. PalAsiatica 41, 181–190 (In Chinese with English abstract).
Li, Q.G. (2009) A new parasemionotid-like fish from the Lower Triassic of Jurong, Jiangsu Province, South China. Palaeontology 52, 369–384.
Xincheng Qiu, Yaling Xu, Zhong-Qiang Chen, Michael J. Benton, Wen Wen, Yuangeng Huang, Siqi Wu (2019) The Early Triassic Jurong fish fauna, South China: Age, anatomy, taphonomy, and global correlation. Global and Planetary Change, Volume 180, 33-50.
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