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Orthonema frequens

Gastropoda - Orthonematidae

Taxonomy
Orthonema frequens was named by Licharew (1968). Its type specimen is CGM StP 8336/369, a shell, and it is a 3D body fossil. Its type locality is Dastarsay Section, Beds 3-5, Karachatyr Range, which is in an Asselian shallow subtidal limestone in Kyrgyzstan.

Synonymy list
YearName and author
1968Orthonema frequens Licharew p. 42 figs. pl. 12 f. 1-17
1975Orthonema frequens Licharev p. 119 figs. pl. 19 f. 16
2002Orthonema frequens Mazaev pp. 97 – 98 figs. 1A, 2A, 4A-J
2019Orthonema frequens Mazaev p. 1301 figs. 50a-e
2020Orthonema frequens Mazaev p. 1165 fig. 8

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassCaenogastropoda(Cox 1959)
superfamilyOrthonematoideaNützel and Bandel 2000
familyOrthonematidae()
genusOrthonema
speciesfrequens

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.

†Orthonema frequens Licharew 1968
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Diagnosis
No diagnoses are available
Measurements
partNmean
shell height16.90

Composition: aragonitec
Locomotion: actively mobilec
Life habit: epifaunalc
Vision: limitedc
Created: 2004-02-29 11:40:59
Modified: 2010-02-11 01:35:02
Source: c = class
Reference: Kiessling 2004

Age range: base of the Asselian to the top of the Pavlovoposadian or 298.90000 to 276.80000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Asselian298.9 - 293.52Russian Federation (Bashkortostan) Orthonema frequens (202159 204134 220885)
Asselian298.9 - 293.52Kyrgyzstan Orthonema frequens (type locality: 95754)
Sakmarian293.52 - 290.1Russian Federation Orthonema frequens (205219 217206)
Pavlovoposadian287.6 - 276.8Russian Federation (Moscow) Orthonema frequens (155899)