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Orthrocosta phantasia

Ostracoda - Podocopida - Trachyleberididae

Discussion

LSID. urn:lsid:zoobank.org:act:5BA73307-A879-4DA1-8753-63E052E0C64A

Derivation of name. Gr. amsara, phantasia an image of the imagination. With reference the very unusual appearance of this species, particularly in the development of its dorsal rib.

Taxonomy
Orthrocosta phantasia was named by Ceolin et al. (2015). Its type specimen is LM-FCEN 3513, a carapace, and it is a 3D body fossil. Its type locality is Cerro Azul CA 21, which is in a Danian marine siltstone in the Jagüel Formation of Argentina.

Synonymy list
YearName and author
2015Orthrocosta phantasia Ceolin et al.
2024Orthrocosta phantasia 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
—Hymenostraca(Rolfe 1969)
RankNameAuthor
superclassOligostracaZrzavý et al. 1997
classOstracoda
subclassPodocopaSars 1865
orderPodocopidaSars 1866
suborderSigilliocopinaMartens 1992
superfamilyCytheroidea(Baird 1850)
familyTrachyleberididaeSylvester-Bradley 1948
subfamilyTrachyleberidinaeBradley 1948
genusOrthrocosta
speciesphantasia

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.

†Orthrocosta phantasia Ceolin et al. 2015
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Diagnosis
ReferenceDiagnosis
D. Ceolin et al. 2015Subtriangular species of Orthrocosta with strongly flared dorsal, ventrolateral and ventral ribs. Median rib distinct and extending across the valve surface. Eye tubercle pronounced and linked to tuberculate marginal rim, extending onto ventral surface. Anteroventral and posteroventral margins strongly dentate. Intercostal reticulation strong and eroding flanks of ribs.
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 (8 total)


Time interval Ma Country or state Original ID and collection number
Maastrichtian72.2 - 66.0Argentina (Neuquén) Orthrocosta phantasia (231997 231998)
Danian66.0 - 61.66Argentina (Neuquén) Orthrocosta phantasia (231999 232000 232001 type locality: 232002 232004 232007)