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Ellesmerella aranea

Bivalvia - Ostreida - Posidoniidae

Taxonomy
Posidonia aranea was named by Tozer (1961). Its type specimen is GSC 14202, a valve (Right valve), and it is a 3D body fossil. Its type locality is GSC 28450, Otto Fiord, Ellesmere Island, which is in a Spathian deep-water siliciclastic in the Blind Fiord Formation of Canada.

It was recombined as Claraia aranea by Bychkov et al. (1976), Dagis et al. (1996); it was recombined as Ellesmerella aranea by Waterhouse (2008).

Sister species lacking formal opinion data
E. permica

Synonymy list
YearName and author
1961Posidonia aranea Tozer p. 102 figs. Pl 28, figs 13-15
1976Claraia aranea Bychkov et al.
1996Claraia aranea Dagis et al. p. 39
2008Ellesmerella aranea Waterhouse

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
RankNameAuthor
—OstreomorphiFerussac 1822
—OstreioniFerussac 1822
—OstreataFerussac 1822
superorderOstreiformiiFerussac 1822
orderOstreida(Fërussac 1822)
suborderMalleidinaGray 1854
superfamilyPosidonioideaFrech 1909
familyPosidoniidaeFrech 1909
genusEllesmerellaWaterhouse 2008
speciesaranea()

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.

†Ellesmerella aranea Tozer 1961
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Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
valve height232.522.846.234.516.5

Composition: low Mg calciteo
Environment: marine, brackisho
Locomotion: stationaryf
Attached: yeso
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2007-11-27 01:49:07
Modified: 2007-11-27 03:49:07
Source: f = family, o = order, c = class
References: Kiessling 2004, Aberhan et al. 2004

Age range: base of the Spathian to the top of the Anisian or 248.10000 to 241.46400 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Triassic251.902 - 246.7Canada (British Columbia) Posidonia aranea (43837)
Olenekian249.9 - 246.7Norway Posidonia aranea (31369)
Olenekian249.9 - 246.7Svalbard and Jan Mayen (Barentsøya) Posidonia aranea (212890)
Smithian - Spathian249.9 - 246.7Canada (Nunavut) Posidonia aranea (44046)
Spathian248.1 - 246.7Svalbard and Jan Mayen Posidonia aranea (212936 212968)
Spathian248.1 - 246.7Svalbard and Jan Mayen (Spitsbergen) Posidonia aranea (211374)
Spathian248.1 - 246.7Svalbard and Jan Mayen (Barentsøya, Edgeøya, and Hopen (Svalbard) ) Posidonia aranea (212900)
Spathian248.1 - 246.7Canada (Nunavut) Posidonia aranea (43853 44047 44049 type locality: 98547)
Spathian248.1 - 246.7Russian Federation Claraia aranea (107005 107207)
Anisian246.7 - 241.464Svalbard and Jan Mayen Posidonia aranea (212175)