Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Mellopegma indecora

Helcionelloida - Stenothecidae

Taxonomy
Anabarella indecora was named by Rozanov et al. (1969) [Anabarella indecora Missarzhevsky in Rozanov, Missarzhevsky, Volkova, Voronova, Krylov, Keller, Korolyuk, Lendzion, Mikhnyar, Pykhova & Sidorov 1969]. Its type specimen is GIN 3593/96, a shell, and it is not a trace fossil.

It was recombined as Mellopegma indecorum by Vendrasco et al. (2011); it was recombined as Mellopegma indecora by Missarzhevsky (1989), Wagner (2023).

Synonymy list
YearName and author
1969Anabarella indecora Rozanov et al.
1975Anabarella indecora Matthews and Missarzhevsky figs. pl. 1 f. 12
1987Anabarella indecora Hinz pp. 54 - 55 figs. pl. 8 f. 5, 11; txt. f. 1A
1989Mellopegma indecora Missarzhevsky figs. pl. 6 f. 10-11
2011Mellopegma indecorum Vendrasco et al. pp. 11A18-19 fig. 14
2023Mellopegma indecora Wagner p. 5660

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classHelcionelloidaPeel 1991
familyStenothecidae
genusMellopegma
speciesindecora()

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.

†Mellopegma indecora Rozanov et al. 1969
show all | hide all
Diagnosis
ReferenceDiagnosis
M. J. Vendrasco et al. 2011Shell elongate, laterally compressed in sub-apical region of aperture, laterally expanded to a great degree along rest of aperture. Internal ornament of comarginal rugae. Dorsal margin smoothly convex; sub-apical margin sharply concave (forming an emargination), ending in a prominent sub-apical shelf.
Measurements
No measurements are available
Composition: aragonitec
Environment: marinec
Locomotion: stationaryf
Life habit: epifaunalf
Diet: suspension feederf
Vision: blindf
Created: 2009-09-24 14:16:38
Modified: 2010-05-17 04:48:53
Source: f = family, c = class
Reference: Hendy et al. 2009

Age range: base of the Tommotian to the top of the Branchian or 525.50000 to 506.50000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Tommotian525.5 - 521.0Russian Federation (Yakutia) Anabarella indecora (45850 45851 45852)
Tommotian525.5 - 521.0Russian Federation (Yakutiya) Anabarella indecora (80796 96251 96391 96394)
Branchian516.2 - 506.5United Kingdom (England) Anabarella indecora (79931 79939)