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Isorthis

Rhynchonellata - Orthida - Dalmanellidae

Synonymy list
YearName and author
1929Isorthis Kozlowski
1964Isorthis Wright
1974Isorthis Bassett and Cocks
1975Isorthis Hints
1996Isorthis Villas and Cocks p. 574
1997Isorthis Jin and Chatterton
2000Isorthis Williams et al. p. 789
2002Isorthis Sepkoski
2011Isorthis Rubel

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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
orderOrthidaSchuchert and Cooper 1932
suborderDalmanellidinaMoore 1952
superfamilyDalmanelloideaSchuchert 1913
familyDalmanellidaeSchuchert 1913
subfamilyIsorthinaeSchuchert and Cooper 1931
genusIsorthisKozlowski 1929

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. †Isorthis Kozlowski 1929
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Subg. †Isorthis (Arcualla) Walmsley and Boucot 1975
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Isorthis (Arcualla) arcuaria Hall and Clarke 1892
Isorthis (Arcualla) microscapha Johnson et al. 1976
Subg. †Isorthis (Isorthis) Kozlowski 1929
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Subg. †Isorthis (Ovalella) Walmsley and Boucot 1975
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Isorthis (Ovalella) mackenziei Boucot et al. 1966
Isorthis (Ovalella) natiscotekia Li and Copper 2006
Subg. †Isorthis (Protocortezorthis) Walmsley and Boucot 1975
Isorthis alpha Gill 1949
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Invalid names: Cariniferella beta Gill 1949 [synonym]
Isorthis bailyi Wright 1964
Isorthis crassa Lindström 1861
Isorthis estona Alichova 1953
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Invalid names: Dalmanella estona Wysogorski 1900 [synonym]
Isorthis festiva Philip 1962
Isorthis loveni Lindström 1861
Isorthis mediocra Rubel 1962
Isorthis parvulus Rybnikova 1967
Isorthis pygmaea Dunbar 1919
Isorthis slitensis Walmsley 1965
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitep
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 10 to < 100g
Thickness: intermediateg
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: minorg
Environment: marineuc
Locomotion: stationaryf
Attached: yesf
Life habit: epifaunalf
Diet: suspension feederf
Vision: blindc
Created: 2009-03-06 06:53:48
Modified: 2009-03-06 08:53:48
Source: g = genus, f = family, c = class, p = phylum, uc = unranked clade
References: Nesnidal et al. 2013, Aberhan et al. 2004, Williams et al. 2000, Hendy et al. 2009

Age range: base of the Nabala to the top of the Late/Upper Emsian or 452.00000 to 391.90000 Ma

Collections (499 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Caradoc460.9 - 449.5China (XinJiang) I. sp. (20789)
Nabala452.0 - 449.5Lithuania I. estona (195471 195472 207243 207244)
Nabala452.0 - 449.5Belarus I. estona (192887)
Vormsi452.0 - 445.6Estonia (Lääne) I. estona (87307)
Vormsi452.0 - 445.6Estonia (Lääne-Viru) Dalmanella estona (173975 173977)
Vormsi452.0 - 445.6Estonia Dalmanella estona (173922 173954 174026) I. estona (161164) I. estona, Dalmanella estona (168967) I. sp., I. estona (168968)
Vormsi452.0 - 445.6Lithuania Dalmanella estona (173994) I. estona (207220 207245)
Vormsi452.0 - 445.6Belarus I. estona (192889)
Vormsi452.0 - 445.6Latvia I. estona (207221)
Cautleyan449.5 - 445.6Ireland (Leinster) I. bailyi (89130)

Youngest occurrences

Time interval Ma Country or state PBDB collection number
Pragian410.8 - 407.6Russian Federation (Sverdlovskaya Oblast) I. sp. (81750)
Pragian - Early/Lower Emsian410.8 - 402.5Russian Federation (Sverdlovskaya Oblast) I. inostranzewi (81790)
Pragian - Early/Lower Emsian410.8 - 402.5Italy I. palliata (26245 26255)
Pragian - Emsian410.8 - 393.3Australia (Victoria) I. spedeni (25716)
Early/Lower Emsian409.1 - 402.5Russian Federation I. snajdri (35713)
Zlichovian409.1 - 391.9Czech Republic (Barrandia) I. biradiata (12112)
Emsian407.6 - 393.3Australia (Queensland) I. sp. (7192)
Late/Upper Emsian402.5 - 391.9Russian Federation I. snajdri (35715 35718)
Eifelian393.3 - 387.7Germany I. sp. (60132)
Eifelian393.3 - 387.7USA (New York) I. proinqua (9552) I. propinqua (9549 9613 9615 9617)