PBDB Taxon

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

Burmirhynchia magna

Rhynchonellata - Rhynchonellida - Tetrarhynchiidae

Taxonomy

Gibbirhynchia magna was named by Cooper (1989). It is not extant. Its type locality is KK6, Khashm adh Dhibi, which is in a Bajocian shallow subtidal limestone in the Dhruma Formation of Saudi Arabia.

It was recombined as Burmirhynchia magna by Alméras et al. (2010).

Synonyms

Gibbirhynchia costata was named by Cooper (1989). It is not extant. Its type locality is KK6, Khashm adh Dhibi, which is in a Bajocian shallow subtidal limestone in the Dhruma Formation of Saudi Arabia.

It was synonymized subjectively with Burmirhynchia magna by Alméras et al. (2010).
Gibbirhynchia pulcher was named by Cooper (1989). It is not extant. Its type locality is KK7, Al Bakhra, Dorsetensia Zone, which is in a Bajocian shallow subtidal limestone in the Dhruma Formation of Saudi Arabia.

It was synonymized subjectively with Burmirhynchia magna by Alméras et al. (2010).
Gibbirhynchia rotundata was named by Cooper (1989). It is not extant. Its type locality is KK7, Al Bakhra, Dorsetensia Zone, which is in a Bajocian shallow subtidal limestone in the Dhruma Formation of Saudi Arabia.

It was synonymized subjectively with Burmirhynchia magna by Alméras et al. (2010).
Gibbirhynchia subcircularis was named by Cooper (1989). It is not extant. Its type locality is Al Jurayfah, S1618, which is in a Bajocian shallow subtidal limestone in the Dhruma Formation of Saudi Arabia.

It was synonymized subjectively with Burmirhynchia magna by Alméras et al. (2010).

Synonymy list

Year	Name and author
1989	Gibbirhynchia costata Cooper
1989	Gibbirhynchia magna Cooper
1989	Gibbirhynchia pulcher Cooper
1989	Gibbirhynchia rotundata Cooper
1989	Gibbirhynchia subcircularis Cooper
2010	Burmirhynchia magna Alméras et al. p. 40

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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	Rhynchonellida	Kuhn 1949
superfamily	Hemithiridoidea	Rzhonsnitskaya 1956
family	Tetrarhynchiidae	Ager 1965
subfamily	Gibbirhynchiinae
genus	Burmirhynchia
species	magna	()

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.

†Burmirhynchia magna Cooper 1989

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Invalid names: Gibbirhynchia costata Cooper 1989 [synonym], Gibbirhynchia pulcher Cooper 1989 [synonym], Gibbirhynchia rotundata Cooper 1989 [synonym], Gibbirhynchia subcircularis Cooper 1989 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	9	11.8	9.00	14.6	12.2	2.04

Composition:

low Mg calcitep

Environment:

marineuc

Locomotion:

stationaryo

Attached:

yesp

Life habit:

epifaunalo

Diet:

suspension feedero

Vision:

blindc

Created:

2004-02-28 14:12:25

Modified:

2004-02-28 16:12:25

Source: o = order, c = class, p = phylum, uc = unranked clade

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

Age range: base of the Bajocian to the top of the Early/Lower Bajocian or 170.30000 to 168.40000 Ma

Collections (6 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Bajocian	171.6 - 168.4	Saudi Arabia	Burmirhynchia magna (141473)
Late/Upper Bajocian	171.6 - 167.7	Saudi Arabia	Burmirhynchia magna (141524)
Bajocian	170.3 - 168.3	Saudi Arabia	Gibbirhynchia costata, Gibbirhynchia magna (type locality: 98960) Gibbirhynchia pulcher, Gibbirhynchia rotundata (98824) Gibbirhynchia rotundata (98966) Gibbirhynchia subcircularis (98845)