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Orthrocosta

Ostracoda - Podocopida - Trachyleberididae

Discussion

LSID. urn:lsid:zoobank.org:act:3B935CC0-6C99-45D6-9212-B9845F442A7E

Derivation of name. Gr. qhq, daybreak, dawn; plus L. costa, rib, and Costa a well-known ostracod genus. With reference to the fact that this genus, which is evidently related to Costa Neviani, and other related genera, is an early member of this generic group.

Synonymy list
YearName and author
2015Orthrocosta Ceolin et al.
2024Orthrocosta Ceolin et al.

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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
orderPodocopidaSars 1866
suborderSigilliocopinaMartens 1992
superfamilyCytheroidea(Baird 1850)
familyTrachyleberididaeSylvester-Bradley 1948
subfamilyTrachyleberidinaeBradley 1948
genusOrthrocosta

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. †Orthrocosta Ceolin et al. 2015
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†Orthrocosta atopos Ceolin et al. 2015
†Orthrocosta decores Ceolin et al. 2015
†Orthrocosta phantasia Ceolin et al. 2015
Diagnosis
ReferenceDiagnosis
D. Ceolin et al. 2015Subtriangular to subtrapezoidal species of
Orthrocosta with anterior margin broadly and symmetrically rounded and acuminate posterior end. Ornamentation reticulocostate with three main ribs longitudinally and a fourth one posteriorly, almost vertically, that unites the ventral and median ribs. Eye tubercle well developed with an ocular rim anteriorly. Subcentral tubercle absent. Hinge holamphidont.
Measurements
No measurements are available
Composition: low Mg calcitec
Environment: hypersaline, marine, brackish, freshwaterc
Locomotion: actively mobilec
Life habit: epifaunalo
Diet: detritivoreo
Diet 2: grazero
Vision: limitedc
Created: 2010-02-05 02:00:00
Modified: 2010-02-23 23:16:56
Source: o = order, c = class
References: Kiessling 2004, Jell and Adrain 2002

Age range: base of the Maastrichtian to the top of the Danian or 72.20000 to 61.66000 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Maastrichtian72.2 - 66.0Argentina (Neuquén) O. phantasia (231997 231998)
Danian66.0 - 61.66Argentina (Neuquén) O. atopos (232005 232006 232008 232010 232014 232015 232017) O. atopos, O. phantasia (232004 232007) O. decores, O. phantasia (232000 232001) O. phantasia (232002) O. sp., O. decores, O. phantasia (231999)