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Tvaerenella

Ostracoda - Palaeocopida - Piretellidae

Taxonomy
Tvaerenella was named by Jaanusson (1957) [Sepkoski's age data: O Llvi-l O Ashg-l Sepkoski's reference number: 78,855]. It is the type genus of Tvaerenellidae.

It was assigned to Tvaerenellidae by Benson et al. (1961); to Palaeocopida by Sepkoski (2002); to Tvaerenellinae by Schallreuter and Hinz-Schallreuter (2011); and to Piretellidae by Abushik and Evdokimova (2016).

Species lacking formal opinion data
T. expedita, T. longa, T. pretiosa

Synonymy list
YearName and author
1957Tvaerenella Jaanusson
1961Tvaerenella Benson et al. p. Q163
2002Tvaerenella Sepkoski
2011Tvaerenella Schallreuter and Hinz-Schallreuter p. 67
2016Tvaerenella Abushik and Evdokimova p. 682

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
—Deuteropoda
—Mandibulata
—PancrustaceaZrzavý and Štys 1997
RankNameAuthor
—Hymenostraca(Rolfe 1969)
superclassOligostracaZrzavý et al. 1997
classOstracoda
subclassPodocopaSars 1865
orderPalaeocopidaHenningsmoen 1953
orderHollinocopidaHenningsmoen 1965
suborderHollinocopinaSwartz 1936
superfamilyEurychilinaceaUlrich and Bassler 1923
familyPiretellidaeOpik 1937
genusTvaerenellaJaanusson 1957

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. †Tvaerenella Jaanusson 1957
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Environment: hypersaline, marine, brackish, freshwaterc
Locomotion: actively mobilec
Life habit: epifaunalo
Diet: suspension feedero
Vision: limitedc
Created: 2010-02-06 00:42:06
Modified: 2010-02-23 22:46:12
Source: o = order, c = class
References: Alvarez et al. 2008, Kiessling 2004

Age range: base of the Early/Lower Llandeilo to the top of the Pirgu or 461.10000 to 445.20000 Ma

Collections (14 total)


Time interval Ma Country or state Original ID and collection number
Dapingian - Darriwilian471.3 - 458.2Russian Federation (Siberia) T. sp. (205562)
Middle Ordovician471.3 - 458.2Argentina T. sp. (9031)
Lasnamagi461.4 - 459.7Sweden (Siljan) T. sp. (2944)
Early/Lower Llandeilo461.1 - 458.2Russian Federation (Siberia) T. sp. (9301)
Costonian - Harnagian458.2 - 457.2Sweden T. sp. (2767)
Caradoc458.2 - 449.5Russian Federation (Siberia) T. sp. (9302)
Keila453.9 - 452.8Russian Federation T. longa (235843)
Oandu452.8 - 451.8Russian Federation (Leningrad oblast) T. longa (235821)
Katian - Pirgu452.8 - 445.2Russian Federation (Krasnoyarsk) T. sp. (204687)
Rakvere451.8 - 450.5Latvia (Daugavpils) T. pretiosa (192987)
Rakvere451.8 - 450.5Russian Federation (Leningrad oblast) T. pretiosa (235825)
Nabala450.5 - 449.9Latvia (Daugavpils) T. pretiosa (192988)
Vormsi449.9 - 449.5Latvia (Daugavpils) T. pretiosa (192989)
Pirgu449.5 - 445.2Russian Federation (Pskovskaya oblast) T. expedita (235826)