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Hypotetragona

Ostracoda - Palaeocopida - Knoxitidae

Taxonomy
Hypotetragona was named by Morey (1935) [Sepkoski's age data: D Eife-l C Pn]. It is not extant.

It was assigned to Geisinidae by Morey (1935), Benson et al. (1961); and to Palaeocopida by Sepkoski (2002).

Synonymy list
YearName and author
1935Hypotetragona Morey
1961Hypotetragona Benson et al. p. Q183
2002Hypotetragona Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaLatreille 1829
—Deuteropoda
—Mandibulata
—PancrustaceaZrzavý and Štys 1997
RankNameAuthor
—Hymenostraca(Rolfe 1969)
superclassOligostracaZrzavý et al. 1997
classOstracoda
subclassPodocopaSars 1865
orderPalaeocopidaHenningsmoen 1953
suborderKloedenellocopinaScott 1961
superfamilyKloedenelloidea(Ulrich and Bassler 1908)
familyKnoxitidaeEgorov 1950
genusHypotetragonaMorey 1935

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. †Hypotetragona Morey 1935
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†Hypotetragona aequitalis Peterson 1964
†Hypotetragona fractodosalis Kesling and Chilman 1978
†Hypotetragona harrietensis Coryell and Malkin 1936
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 Late/Upper Emsian to the top of the Westphalian or 399.50000 to 307.40000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Emsian399.5 - 393.47China (Guangxi) H. sp. (4052)
Givetian387.95 - 382.31USA (Ohio) H. fractodorsalis, H. aequitalis, H. harrietensis (81857 206972 206973 206974)
Givetian387.95 - 382.31USA (Michigan) H. fractodorsalis, H. aequitalis, H. harrietensis (38475) H. harrietensis (38476)
Meramecian342.9 - 335.4USA (Arkansas) H. sp. (76149 76152)
Chesterian335.4 - 323.4USA (Arkansas) H. sp. (76146)
Westphalian318.7 - 307.4Spain H. sp. (73298)