PBDB Taxon

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Polybranchiaspididae

Galeaspida - Polybranchiaspidiformes - Polybranchiaspididae

Taxonomy

Polybranchiaspididae was named by Liu (1965). It is not extant.

It was assigned to Polybranchiaspidiformes by Zhu and Gai (2007).

Subtaxa

Bannhuanaspis, Clororbis, Cyclodiscaspis, Damaspis, Diandongaspis, Dongfangaspis, Laxaspis, Polybranchiaspis, Siyingia

Synonymy list

Year	Name and author
1965	Polybranchiaspididae Liu
2007	Polybranchiaspididae Zhu and Gai p. 164

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata

Rank	Name	Author
class	Galeaspida
superorder	Polybranchiaspidida
order	Polybranchiaspidiformes	Liu 1965
family	Polybranchiaspididae	Liu 1965
family	Polybranchiaspididae	Liu 1965

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.

Fm. †Polybranchiaspididae Liu 1965

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G. †Bannhuanaspis Janvier et al. 1993

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†Bannhuanaspis vukhuci Janvier et al. 1993

G. †Clororbis Pan and Ji 1993

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†Clororbis appronomedianus Pan and Ji 1993

G. †Cyclodiscaspis Liu 1975

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†Cyclodiscaspis ctenus Liu 1975

G. †Damaspis Wang and Wang 1982

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†Damaspis vartus Wang and Wang 1982

G. †Diandongaspis Liu 1975

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†Diandongaspis xishancunensis Liu 1975

G. †Dongfangaspis Liu 1975

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†Dongfangaspis major Liu 1975

†Dongfangaspis qujingensis Pan and Wang 1981

G. †Laxaspis Liu 1975

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†Laxaspis qujingensis Liu 1975

†Laxaspis yulongssus Liu 1975

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

G. †Siyingia Wang and Wang 1982

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†Siyingia altuspinosa Wang and Wang 1982

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

marinesubp

Locomotion:

actively mobilep

Created:

2017-04-17 15:11:50

Modified:

2017-04-17 15:11:50

Source: subp = subphylum, p = phylum

References: Kiessling 2004, Carroll 1988

Age range: base of the Ludlow to the top of the Lochkovian or 427.40000 to 410.80000 Ma

Collections (3 total)

Time interval	Ma	Country or state	Original ID and collection number
Ludlow	427.4 - 423.0	China (Yunnan)	Polybranchiaspis sp. (27912)
Lochkovian	419.2 - 410.8	China (Yunnan)	Dongfangaspis yunnanensis, Dongfangaspis paradoxus, Polybranchiaspis yulongssus, Polybranchiaspis liaojiaoshanensis, Polybranchiaspis minor, Polybranchiaspis zhanyiensis, Laxaspis qujingensis, Dongfangaspis qujingensis, Damaspis vartus, Diandongaspis xishancunensis (173380) Polybranchiaspis liaojiaoshanensis, Siyingia altuspinosa, Laxaspis qujingensis, Cyclodiscaspis ctenus (162781)