PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Athyris subquadrata

Rhynchonellata - Athyridida - Athyrididae

Taxonomy

Athyris subquadrata was named by Yang and Xu (1966).

Sister species lacking formal opinion data

A. area, A. bayeti, A. chitralensis, A. cingulata, A. expansa, A. gerolsteinensis, A. hunanensis, A. juno, A. minuta, A. mollizonota, A. murchisoni, A. odolens, A. oehlerti, A. reticulata, A. sulcifera, A. undata, A. vittata, A. waratahensis, A. wiragullensis, A. fultonensis, A. vittata

Synonymy list

Year	Name and author
1966	Athyris subquadrata Yang and Xu p. 65 figs. Pl 10, figs 9,10; pl 11, fig 1; text-fig 64
1978	Athyris subquadrata Feng and Jiang p. 279 figs. Pl 101, fig 21

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
—	Lophophorata
—	Panbrachiopoda	Carlson and Cohen 2020
phylum	Brachiopoda	Cuvier 1805

Rank	Name	Author
subphylum	Rhynchonelliformea	Williams et al. 1996
class	Rhynchonellata	Williams et al. 1996
order	Athyridida	Boucot et al. 1964
suborder	Athyrididina	Boucot et al. 1964
superfamily	Athyridoidea	McCoy 1844
family	Athyrididae	McCoy 1841
subfamily	Athyridinae	M'Coy 1844
genus	Athyris
species	subquadrata

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.

†Athyris subquadrata Yang and Xu 1966

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Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	4	4.10	3.50	5.30	3.90	0.806

Composition:

low Mg calcitep

Entire body:

yesg

Adult length:

10 to < 100g

Adult width:

10 to < 100g

Adult height:

10 to < 100g

Folds:

minorg

Ribbing:

minorg

Spines:

noneg

Internal reinforcement:

noneg

Environment:

marineuc

Locomotion:

stationarysubo

Attached:

yesp

Life habit:

low-level epifaunalsubo

Diet:

suspension feedersubo

Vision:

blindc

Created:

2009-06-03 07:56:13

Modified:

2009-06-03 09:56:13

Source: g = genus, subo = suborder, c = class, p = phylum, uc = unranked clade

References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy 2009

Age range: base of the Pelsonian to the top of the Illyrian or 247.20000 to 242.00000 Ma

Collections: one only

Time interval	Ma	Country or state	Original ID and collection number
Pelsonian - Illyrian	247.2 - 242.0	China (Guizhou)	Athyris subquadrata (152032)