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Anazygoidea

Rhynchonellata - Atrypida

Taxonomy
Anazygoidea was named by Davidson (1883).

It was assigned to Anazygidina by Williams et al. (2002).

Subtaxa
Anazygidae

Synonymy list
YearName and author
1883Anazygoidea Davidson
2002Anazygoidea Williams et al. p. 1440

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
RankNameAuthor
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderAtrypidaRzhonsnitskaya 1960
suborderAnazygidinaCopper 1996
superfamilyAnazygoideaDavidson 1883
superfamilyAnazygoideaDavidson 1883

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.

Superfm. †Anazygoidea Davidson 1883
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Fm. †Anazygidae Davidson 1883
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Subfm. †Anazyginae Davidson 1883
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G. †Anazyga Davidson 1882
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†Anazyga aequivalvis Twenhofel 1928
†Anazyga orbis Reed 1917
†Anazyga recurvirostra Hall 1847
Invalid names: Hallina [synonym], Nuria [synonym]
G. †Pusillagutta Misius 1986
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†Pusillagutta gibbera Misius 1986
G. †Zygatrypa
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†Zygatrypa exigua Lindström 1861
†Zygatrypa stenoparva Boucot et al. 1988
G. †Zygospira Hall 1862
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†Zygospira deflecta Hall 1847
†Zygospira fallax Marek and Havlíček 1967
†Zygospira gutta Oraspold 1956
†Zygospira kentuckiensis Hall and Clarke 1895
†Zygospira lebanonensis Cooper 1956
†Zygospira matutina Cooper 1956
†Zygospira meafordensis Foerste 1924
†Zygospira modesta Hall 1847
†Zygospira resupinata Wang 1949
†Zygospira sulcata Howe 1965
Subfm. †Catazyginae Copper 1977
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G. †Catazyga Hall and Clarke 1893
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†Catazyga anticostiensis Billings 1862
†Catazyga arcana Williams 1962
†Catazyga cartieri Cooper and Kindle 1936
†Catazyga headi Billings 1862
†Catazyga hicksi Reed 1905
Invalid names: Eonalivkinia [synonym], Salairella Severgina 1984 [synonym]
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†Pentlandella merriami Sheehan 1982
Subfm. †Tuvaellinae Alikhova 1960
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G. †Tuvaella
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationaryo
Attached: yesp
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2004-02-28 14:10:24
Modified: 2004-02-28 16:10:24
Source: o = order, c = class, p = phylum, uc = unranked clade
References: Nesnidal et al. 2013, Aberhan et al. 2004

Age range: base of the Llandeilo to the top of the Ludlow or 461.10000 to 422.70000 Ma

Collections (1250 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Ordovician486.85 - 443.1USA (Tennessee) Anazyga sp. (1959)
Ordovician486.85 - 443.1USA (Ohio) Zygospira modesta (77814)
Middle Ordovician471.3 - 458.2USA (Kentucky) Zygospira modesta (10758) Zygospira sp. (10745 10757)
Middle Ordovician471.3 - 458.2USA (New York) Anazyga sp. (333 430) Anazyga sp., Zygospira sp. (334) Zygospira sp. (405)
Middle Ordovician471.3 - 458.2USA (Virginia) Zygospira sp. (6992)
Whiterockian471.3 - 457.3USA (California) Zygospira sp. (104345 104347)
Middle Ordovician - Late/Upper Ordovician471.3 - 443.1Canada (Nunavut) Zygospira sp. (101977)
Middle Ordovician - Late/Upper Ordovician471.3 - 443.1USA (Kentucky) Zygospira sp. (10720 10746)
Llanvirn468.0 - 458.2China (QingHai) Catazyga sp. (8683)
Llandeilo461.1 - 458.2China (GanSu) Catazyga sp. (8578)

Youngest occurrences
Time interval Ma Country or state PBDB collection number
Wenlock432.9 - 426.7China (Heilongjiang) Tuvaella rackovskii (27730)
Wenlock432.9 - 426.7Russian Federation (Siberia) Catazyga rara (206312)
Wenlock432.9 - 426.7Mongolia (The Mongolian Lake District) Tuvaella rackovskii (13189)
Wenlock - Ludlow432.9 - 422.7China (Heilongjiang) Tuvaella gigantea, Tuvaella rackovskii, Tuvaella minuta (27886)
Wenlock - Ludlow432.9 - 422.7Mongolia Tuvaella gigantea (41061)
Homerian - Jaagarahu430.6 - 428.6Lithuania Pentlandella tenuistriata (192583)
Homerian430.6 - 426.7Canada (Northwest Territories) Zygatrypa paupera (497)
Ludlow426.7 - 422.7China (Xinjiang) Tuvaella gigantea (25865) Tuvaella gigantea, Tuvaella barkolensis (27760)
Ludlow426.7 - 422.7Mongolia Tuvaella gigantea (41062)
Ludlow - Pridoli426.7 - 419.62Russian Federation Tuvaella gigantea (24781 24782 24784)