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Metaperrinites involutus

Cephalopoda - Goniatitida - Perrinitidae

Taxonomy
Shuangyangites involutus was named by Liang (1982). Its type specimen is NIGP 64179 and is a 3D body fossil. Its type locality is Zhoujiayao, ACZ1, Shuangyang County, which is in a Wordian marine horizon in the Fanjiatun Formation of China. It is the type species of Shuangyangites.

It was recombined as Metaperrinites involutus by Furnish et al. (2009).

Synonymy list
YearName and author
1982Shuangyangites involutus Liang p. 650 figs. Pl 2, figs 13,14; text-fig 5
2002Shuangyangites involutus Leonova
2009Metaperrinites involutus Furnish et al. p. 142

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderGoniatitidaHyatt 1884
suborderGoniatitinaHyatt 1884
superfamilyShumarditoidea(Plummer and Scott 1937)
familyPerrinitidae
genusMetaperrinitesRuzhencev 1950
speciesinvolutus()

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.

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Diagnosis
No diagnoses are available