Abstract
One junior homonym was detected within fossil Branchiopoda and the following name is therefore proposed to replace it: Jurapingquania Ceccolini and Cianferoni nom. nov. = Pingquania Wang in Wang and Li, 2008 nec Guo and Duan, 1978.
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Wang in (Wang and Li, 2008: 320) established the new genus of clam shrimp Pingquania to accommodate the new species P. huangtuliangensis from Upper Jurassic of the Northern Hebei province, in China. The author named the new genus from Pingquan County where the type species was found and he included it in the family Eosestheriidae. Currently it is considered valid, even if its inclusion within the order Diplostraca is not clear (Rees, 2021).
Unfortunately, 30 years earlier Guo and Duan (1978: 453) used the same name Pingquania for another fossil of the Chinese province of Hebei, a trilobite genus from Upper Cambrian. It is still used as a valid genus name within the family Damasellidae (Jell and Adrian, 2003), even if in Rees (2021) it is considered awaiting allocation within the Trilobitomorpha.
Pingquania Wang is therefore a junior homonym of Pingquania Guo and Duan and, lacking an available synonym, according to ICZN (1999, Arts. 57.2, 60.1, 60.2), it must be replaced by a new name. We propose here the new substitute name Jurapingquania Ceccolini and Cianferoni nom. nov. (female gender); the new name follows the original one, adding the prefix Jura- in reference to the geologic period to which the genus dates back.
Since the genus is monotypic, the only species P. huangtuliangensis is obviously also the type species of the genus Jurapingquania (see ICZN 1999, Arts. 51.3, 67.8, Recommendation 60A) and the following combination is established: Jurapingquania huangtuliangensis (Wang, 2008) comb. nov.
REFERENCES
Guo, H. and Duan, J.,
[Cambrian and Early Ordovician trilobites from northeastern Hebei and Western Liaoning], Acta Palaeontol. Sinica, 1978, vol. 17, no. 4, pp. 439–460. [in Chinese].ICZN—International Commission on Zoological Nomenclature, International Code of Zoological Nomenclature. 4th ed., The International Trust for Zoological Nomenclature, London, 1999.
Rees, T., The Interim Register of Marine and Nonmarine Genera [online], 2021, available from https://www.irmng.org at VLIZ (Accessed June 17, 2021).
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Wang, S. and Li, G.,
[New fossil clam shrimps from the Tuchengzi Formation of northern Hebei, western Liaoning], Acta Palaeontologica Sinica, 2008, vol. 47, no. 3, pp. 319–325. [in Chinese with taxa descriptions also in English].
[Cambrian and Early Ordovician trilobites from northeastern Hebei and Western Liaoning], Acta Palaeontol. Sinica, 1978, vol. 17, no. 4, pp. 439–460. [in Chinese].
[New fossil clam shrimps from the Tuchengzi Formation of northern Hebei, western Liaoning], Acta Palaeontologica Sinica, 2008, vol. 47, no. 3, pp. 319–325. [in Chinese with taxa descriptions also in English].ACKNOWLEDGMENTS
The authors thank Prof. Gang Li (Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences) for useful information.
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Ceccolini, F., Cianferoni, F. A New Replacement Name for an Upper Jurassic Genus of Clam Shrimp (Branchiopoda: Diplostraca). Paleontol. J. 57, 915 (2023). https://doi.org/10.1134/S0031030123080026
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DOI: https://doi.org/10.1134/S0031030123080026