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Pygecystis quadrata

Rhombifera - Pleurocystitidae

Taxonomy
Pleurocystis quadrata was named by Bather (1913). It is a 3D body fossil. Its type locality is Locality 5. “Starfish Bed,” small cliff above S. bank of Lady Burn River, 100 meters south of South Treave Farmhouse, Thraive Glen, Girvan, which is in a Rawtheyan carbonate limestone in the South Threave Formation of the United Kingdom.

It was recombined as Pleurocystites quadrata by Bassler and Moodey (1943); it was recombined as Pygecystis quadrata by Paul (1984).

Synonymy list
YearName and author
1913Pleurocystis quadrata Bather p. 482 figs. pi. 6, figs. 69-74, text figs. 73, 79
1943Pleurocystites quadrata Bassler and Moodey p. 182
1984Pygecystis quadrata Paul

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumBlastozoa
RankNameAuthor
orderRhombiferaZittel 1879
superfamilyGlyptocystitoida(Bather 1899)
familyPleurocystitidaeNeumayr 1889
subfamilyPleurocystitinaeUlrich and Kirk 1911
genusPygecystis
speciesquadrata(Bather 1913)

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.

Pygecystis quadrata Bather 1913
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Diagnosis
No diagnoses are available