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Quadratirhynchia crassimedia

Rhynchonellata - Rhynchonellida - Tetrarhynchiidae

Taxonomy
Quadratirhynchia crassimedia was named by Buckman (1917). It is a 3D body fossil. Its type locality is Ilminster (Marlstone Rock-bed, GSM), which is in a Spinatum carbonate limestone in the Marlstone Rock Formation of the United Kingdom.

It was synonymized subjectively with Quadratirhynchia quadrata by Alméras and Fauré (2000).

Synonymy list
YearName and author
1917Quadratirhynchia crassimedia Buckman figs. Pl 13, fig 3
1956Quadratirhynchia crassimedia Ager p. 16 figs. Pl 2, figs 2a-c
2007Quadratirhynchia crassimedia Alméras et al. p. 82 figs. Pl 5, figs 10,11

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderRhynchonellidaKuhn 1949
superfamilyHemithiridoideaRzhonsnitskaya 1956
familyTetrarhynchiidaeAger 1965
subfamilyTetrarhynchiinaeAger 1965
genusQuadratirhynchia
speciescrassimediaBuckman 1917

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
Measurements
partNmeanminimummaximummedians.d.
shell height220.115.526.120.87.50

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

Age range: base of the Sinemurian to the top of the Spinatum or 199.50000 to 184.20000 Ma

Collections (46 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Sinemurian199.5 - 192.9Chile Quadratirhynchia crassimedia (32408 32409 32412 32413 32415 32422 32423 32424 32425 32428 32430 32432 32433 32435 32436 32437 32438 32439 32440 32443 32444 33950 33952 33953 33954 33959 33963 33964 33965 33968 33969 33970 33971 34055)
Sinemurian199.5 - 192.9Chile Quadratirhynchia crassimedia (7415 7416 7436)
Early/Lower Pliensbachian192.9 - 184.2Chile Quadratirhynchia crassimedia (33574 33575)
Late/Upper Pliensbachian192.9 - 184.2United Kingdom (England) Quadratirhynchia crassimedia (28839 28842 28844 28845)
Pliensbachian192.9 - 184.2Spain Quadratirhynchia crassimedia (171314)
Spinatum192.9 - 184.2United Kingdom (Somerset) Quadratirhynchia crassimedia (type locality: 38104)
Spinatum192.9 - 184.2United Kingdom (England) Quadratirhynchia crassimedia (138215)