PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Isjuminella

Rhynchonellata - Rhynchonellida - Tetrarhynchiidae

Taxonomy

Isjuminella was named by Makridin (1955) [Sepkoski's age data: J Bath Sepkoski's reference number: 538]. It is not extant. It is the type genus of Isjuminellinae.

It was assigned to Isjuminellinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).

Species

I. decorata

Synonyms

Sardorhynchia is a genus. It is not extant.

It was synonymized subjectively with Isjuminella by Williams et al. (2002).

It was assigned to Rhynchonellida by Sepkoski (2002).

Synonymy list

Year	Name and author
1955	Isjuminella Makridin p. 85
2002	Isjuminella Sepkoski
2002	Sardorhynchia Sepkoski
2002	Isjuminella Williams et al. p. 1359

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

Rank	Name	Author
phylum	Brachiopoda	Cuvier 1805
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	Isjuminellinae
genus	Isjuminella	Makridin 1955

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.

G. †Isjuminella Makridin 1955

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†Burmirhynchia decorata kiliani Dardeau and Laurin 1982

†Isjuminella decorata Schlotheim 1820

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†Burmirhynchia decorata decorata Laurin 1984

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Invalid names: Rhynchonella tricristata Rollier 1917 [synonym], Terebratula decorata rucipalcis Quenstedt 1868 [synonym]

Invalid names: Sardorhynchia [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
height	10	28.2	23.2	34.3	29.1	3.21

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: Middle Bathonian or 168.20000 to 165.30000 Ma

Collections (11 total)

Time interval	Ma	Country or state	Original ID and collection number
Bathonian	168.2 - 165.3	Germany	I. decorata (159879)
Bathonian	168.2 - 165.3	France	Burmirhynchia decorata (174613) I. decorata (159878)
Late/Upper Bathonian	168.2 - 165.3	France	Burmirhynchia decorata (174611 174612 174614)
Middle Bathonian	168.2 - 165.3	France	Burmirhynchia decorata (174449)
Middle Bathonian - Late/Upper Bathonian	168.2 - 165.3	France	Burmirhynchia decorata (174615 174630 174631 174632)