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Omalaxis

Gastropoda - Turritellidae

Taxonomy
Omalaxis was named by Deshayes (1832) [Sepkoski's age data: T Eo-l T Eo-m-u Sepkoski's reference number: 914,1066]. Its type is Solarium disjunctum. It is the type genus of Omalaxinae.

It was assigned to Gastropoda by Agassiz (1845); to Heterostrophia by Sepkoski (2002); to Omalaxidae by Allison (1955) and Global Biodiversity Information Facility (2015); and to Omalaxinae by Bouchet et al. (2005) and Bouchet et al. (2017).

Synonymy list
YearName and author
1832Omalaxis Deshayes
1845Omaloxon Agassiz
1955Omalaxis Allison p. 416
2002Omalaxis Sepkoski
2005Omalaxis Bouchet et al.
2015Omalaxis Global Biodiversity Information Facility
2017Omalaxis Bouchet et al. p. 169

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassCaenogastropoda(Cox 1959)
superfamilyCerithioidea(Férussac 1819)
familyTurritellidaeLovén 1847
subfamilyOmalaxinaeCossmann 1916
genusOmalaxisDeshayes 1832

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. †Omalaxis Deshayes 1832
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†Omalaxis bifrons Lamarck 1804
†Omalaxis disjunctum Lamarck 1804
†Omalaxis planorbis Blainville 1827
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitec
Locomotion: facultatively mobilef
Life habit: semi-infaunalf
Diet: suspension feederf
Vision: limitedc
Created: 2009-09-10 07:15:58
Modified: 2018-02-27 07:57:42
Source: f = family, c = class
References: Hendy et al. 2009, Kiessling 2004

Age range: base of the Late/Upper Aptian to the top of the Bartonian or 122.46000 to 38.00000 Ma

Collections (31 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Aptian122.46 - 113.0Mexico (Baja California) O. planorbis (1878)
Maastrichtian72.1 - 66.0USA (Texas) O. sp. (205541)
Ypresian56.0 - 47.8France (Picardie) O. laudunensis (178778)
Ypresian56.0 - 47.8Belgium O. brusseliensis (77608)
Early/Lower Eocene - Middle Eocene55.8 - 37.71United Kingdom (England) O. sp. (3257 3258)
Lutetian47.8 - 41.3France (Yvelines) O. bifrons (177970 177971 177972 177974 177975)
Lutetian47.8 - 41.3USA (Texas) O. sp. (205503)
Lutetian47.8 - 41.3France (Picardie) O. disjoncta, O. serrata, O. bifrons (178119) O. disjuncta (178083)
Lutetian47.8 - 41.3Belgium O. brusseliensis (77611)
Lutetian47.8 - 41.3United Kingdom (England) O. crenensis, O. laudunensis (8125) O. sp. (8047) O. sp., O. dijunctus, O. crenensis, O. laudenensis, O. bifrons (8124)
Lutetian47.8 - 41.3France O. ammonoides, O. conoidea, O. disjuncta, O. serrata, O. bifrons (171526) O. serrata (171535) Solarium bifrons, Solarium disjunctum (184110) Solarium disjunctum (184107)
Bartonian41.3 - 38.0France (Picardie) O. disjuncta (178082)
Bartonian41.3 - 38.0USA (Texas) O. singleyi (205222 205266 205422 205430 205484) O. sp. (205267 205480)
Bartonian41.3 - 38.0France (Île-de-France) O. disjuncta (179130)