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Isognomon

Bivalvia - Ostreida - Malleidae

Synonyms
Synonymy list
YearName and author
1786Isognomon Lightfoot
1980Isognomon Vokes p. 44
1983Isognomon Moore p. A84
1986Isognomon Kensley and Pether p. 202
1992Isognomon Ward p. 63
1995Isognomon Chiesa et al. p. 39
1998Isognomon Lamprell and Healy p. 106
1999Isognomon Frassinetti and Covacevich p. 23
2002Isognomon Matsubara p. 135
2002Aviculoperna Sepkoski
2002Isognomon Sepkoski
2004Isognomon Spencer et al.
2011Isognomon Lazo and Damborenea p. 729
2013Isognomon Repin p. 563
2014Isognomon Ros-Franch et al.
2023Isognomon Hickman p. 21

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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(FĂ«russac 1822)
suborderMalleidinaGray 1854
superfamilyPterioideaGray 1847
familyMalleidaeLamarck 1819
subfamilyIsognomoninae(Woodring 1925)
genusIsognomonLightfoot 1786

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. Isognomon Lightfoot 1786
show all | hide all
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Isognomon (Hippochaeta) hataii Noda and Furuichi 1972
Subg. †Isognomon (Iranognomon) Repin 2008
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Subg. Isognomon (Isognomon) Lightfoot 1786
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Isognomon (Isognomon) panzana Loel and Corey 1932
Subg. Isognomon (Melina) Philipsson 1788
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Subg. Isognomon (Parviperna) Iredale 1939
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Subg. †Isognomon (Semignomon) Repin 2013
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Isognomon alatus Gmelin 1791
Isognomon bicolor Adams 1845
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Invalid names: Perna chemnitziana d'Orbigny 1853 [synonym]
Isognomon gariesensis Kensley and Pether 1986
Isognomon gaudichaudi d'Orbigny 1842
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Invalid names: Perna chilensis Conrad 1855 [synonym]
Isognomon isognomoides Stahl 1824
Isognomon isognomon Linnaeus 1758
Isognomon legumen Gmelin 1790
Isognomon maxillata Lamarck 1819
Isognomon nucleus Lamarck 1819
Isognomon orientalis Hamlin 1884
Isognomon perna Linnaeus 1767
Isognomon quadrisulcata Ihering 1897
Isognomon radiatus Anton 1838
Isognomon repini Hautmann 2001
Isognomon valvanoi Rossi de Garcia and Levy 1977
Invalid names: Aviculoperna [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
height226.014.646.230.422.3
valve height1130.0----

Composition: aragonitef
Composition 2: low Mg calcitef
Environment: marine, brackisho
Locomotion: stationaryg
Attached: yesg
Epibiont: yessuperf
Life habit: epifaunalg
Diet: suspension feederg
Vision: blindc
Comments: LIFE HISTORY: Attached (attached to dead shells), epifaunal, suspension-feeder (McKerrow, 1979); EP, IM, BA, SU according to Todd (2001).g
Created: 2009-04-13 11:22:47
Modified: 2009-08-17 21:46:58
Source: g = genus, f = family, superf = superfamily, o = order, c = class
References: Aberhan et al. 2004, Kiessling 2004, Hendy et al. 2009, Sanchez Roig 1926

Age range

Maximum range based only on fossils: base of the Changhsingian to the top of the Late/Upper Pleistocene or 254.17000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 252.17 Ma

Collections (525 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Changhsingian254.17 - 252.17China (Guizhou) I. sp. (108547 108548 108551)
Julian235.0 - 232.0Italy I. sp. (34692 69661)
Norian228.0 - 208.5Austria (Kaernten) I. exilis (129681 129683 129684 129688)
Norian228.0 - 208.5Austria I. exilis (205954)
Norian228.0 - 208.5Hungary I. exilis (70989 73188 73193) I. sp. (70988)
Sevatian212.0 - 205.6Iran I. repini (49568)
Sevatian212.0 - 205.6Italy I. exilis (201689)
Rhaetian208.5 - 201.3Spain I. exilis (142083)
Rhaetian208.5 - 201.3Iran I. repini (48972)
Rhaetian208.5 - 201.3Italy I. exilis (38167)
Hettangian201.3 - 199.3Japan (Miyagi) I. rikuzenicus (40541)
Hettangian201.3 - 199.3Greenland I. lugdunensis (162105)
Sinemurian199.3 - 190.8Canada (British Columbia) I. sp. (53204)
Sinemurian199.3 - 190.8Chile I. jupiter (7434)
Early/Lower Sinemurian196.5 - 189.6Hong Kong I. sp. (137807)
Late/Upper Sinemurian196.5 - 189.6Chile I. jupiter (33956)
Late/Upper Sinemurian196.5 - 189.6Canada (British Columbia) I. sp. (21252)
Pliensbachian190.8 - 182.7Slovenia I. sp. (68358)
Pliensbachian190.8 - 182.7Argentina (Neuquen) I. jupiter (33819 33862 33895 33896 33898 33899 33902 33903 33905 33906 33907 33908 33909)
Pliensbachian190.8 - 182.7Greenland I. isognomoides (162052) I. sp. (161972 161973 162058 162078 162083 162110) I. sp., I. infraliassica (161968 162113)