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Polybranchiaspidiformes
Taxonomy
Polybranchiaspidiformes was named by Liu (1965). It is not extant.
It was assigned to Polybranchiaspidida by Zhu and Gai (2007) and Gai et al. (2018).
It was assigned to Polybranchiaspidida by Zhu and Gai (2007) and Gai et al. (2018).
Synonymy list
Year | Name and author |
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1965 | Polybranchiaspidiformes Liu |
2007 | Polybranchiaspidiformes Zhu and Gai p. 164 |
2018 | Polybranchiaspidiformes Gai et al. p. 5 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Or. †Polybranchiaspidiformes Liu 1965
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Fm. †Duyunolepididae Pan and Wang 1978
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Fm. †Gumuaspidae Gai et al. 2018
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Fm. †Pentathyraspididae Pan 1992
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Fm. †Polybranchiaspididae Liu 1965
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G. †Dongfangaspis Liu 1975
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†Dongfangaspis major Liu 1975
†Dongfangaspis qujingensis Pan and Wang 1981
G. †Polybranchiaspis Liu 1965
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†Polybranchiaspis gracilis Cao 1985
†Polybranchiaspis liaojiaoshanensis Liu 1965
†Polybranchiaspis miandiancunensis Pan and Wang 1978
†Polybranchiaspis minor Liu 1975
†Polybranchiaspis rhombicus Cao 1985
†Polybranchiaspis sinensis Cao 1985
†Polybranchiaspis yunnanensis Cao 1985
†Polybranchiaspis zhanyiensis Pan and Wang 1978
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: subp = subphylum, p = phylum | |||||
References: Carroll 1988, Kiessling 2004 |
Age range: base of the Telychian to the top of the Lochkovian or 438.50000 to 410.80000 Ma
Collections (5 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Telychian | China (Xinjiang) | Platylomaspis serratus (182524) | |
Ludlow | China (Yunnan) | Polybranchiaspis sp. (27912) | |
Lochkovian | China (Yunnan) | Dongfangaspis yunnanensis, Dongfangaspis paradoxus, Polybranchiaspis yulongssus, Polybranchiaspis liaojiaoshanensis, Polybranchiaspis minor, Polybranchiaspis zhanyiensis, Laxaspis qujingensis, Dongfangaspis qujingensis, Damaspis vartus, Diandongaspis xishancunensis, Laxaspis rostrata, Pentathyraspis pelta (173380) Polybranchiaspis liaojiaoshanensis, Siyingia altuspinosa, Laxaspis qujingensis, Cyclodiscaspis ctenus, Laxaspis rostrata (162781) | |
Early/Lower Devonian | China (Guangxi) | Nanningaspis zengi (223840) |