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Myonia elongata

Bivalvia - Sanguinolitidae

Taxonomy
Myonia elongata was named by Dana (1847). Its type specimen is USNM 3584 and is a 3D body fossil. Its type locality is Black Head, Gerringong (USNM coll), which is in a Wordian marine sandstone in the Gerringong Formation of Australia.

It was recombined as Maeonia elongata by Dana (1849) and Laseron (1910).

Synonyms
Synonymy list
YearName and author
1847Myonia elongata Dana p. 158
1847Myonia valida Dana p. 158
1849Maeonia elongata Dana p. 695 figs. Pl 5, figs 3a,b,c
1849Maeonia valida Dana p. 695 figs. Pl 5, fig 4a,b
1910Maeonia elongata Laseron p. 206
1932Myonia accentuata Fletcher p. 400 figs. Pl 47, figs 4-5
1932Myonia depressa Fletcher p. 405 figs. pl. 47, fig. 4, 5
1967Myonia elongata Runnegar p. 47 figs. Pl 5, figs 12-15, 18
1967Myonia valida Runnegar p. 50
1969Myonia elongata Waterhouse p. 61 figs. Pl 13, fig 5; pl 14, figs 1,4,5
1969Myonia depressa Waterhouse p. 64
1980Myonia elongata Waterhouse p. 125 fig. 9.4,9.6
1988Myonia elongata Waterhouse p. 180 figs. Pl 7, figs 1, 2; pl 8, figs 1, 2; pl 9, fig 1
1992Myonia elongata Clarke p. 30 fig. 16E

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassHeteroconchia(Gray 1854)
—CardiomorphiFerussac 1822
—CardioniFerussac 1822
—CardiidiaFerussac 1822
superfamilyGrammysioideaMiller 1877
familySanguinolitidaeMiller 1877
subfamilyVacunellinae(Astafieva-Urbajtis 1973)
genusMyonia
specieselongata

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.

†Myonia elongata Dana 1847
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Invalid names: Myonia accentuata Fletcher 1932 [synonym], Myonia depressa Fletcher 1932 [synonym], Myonia valida Dana 1847 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height139.0----
valve height1249.826.091.352.519.7

Composition: aragonitec
Locomotion: facultatively mobilec
Life habit: deep infaunalg
Diet: suspension feederc
Vision: blindc
Created: 2009-10-12 12:33:56
Modified: 2009-10-12 14:33:56
Source: g = genus, c = class
References: Clapham 2015, Aberhan et al. 2004

Age range: base of the Sakmarian to the top of the Capitanian or 293.52000 to 259.51000 Ma

Collections (10 total)


Time interval Ma Country or state Original ID and collection number
Sakmarian293.52 - 290.1Australia (Tasmania) Myonia elongata (105481 105492)
Roadian272.3 - 268.8Australia (New South Wales) Maeonia elongata (161842 161850)
Wordian266.9 - 264.28New Zealand (Southland) Myonia elongata, Myonia depressa (41767)
Wordian266.9 - 264.28Russian Federation Myonia elongata (102217)
Wordian266.9 - 264.28Australia (New South Wales) Myonia elongata (134057) Myonia elongata, Myonia valida (type locality: 83172) Myonia valida (136663)
Capitanian264.28 - 259.51New Zealand (Southland) Myonia elongata (41777)