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

Igorella

Helcionelloida - Helcionellida - Helcionellidae

Synonyms
Synonymy list
YearName and author
1969Igorella Rozanov et al. pp. 166-167
1976Igorella Runnegar and Jell p. 117
1979Maidipingoconus
1981Songlinella Chen et al.
1981Shabaktiella Missarzhevsky p. 50
1981Chabaktiella Missarzhevsky and Mambetov p. 50
1989Igorellina Missarzhevsky
1989Igorella Missarzhevsky p. 172
1989Igorellina Missarzhevsky p. 175
1989Chabaktiella Missarzhevsky p. 177
1992Igorella Bengtson p. 1027
1994Dianella Wang
1994Igorella Wang p. 12
1994Dianella Wang p. 13
1998Bemellina Vassiljeva p. 77
1998Compressoconus Vassiljeva p. 79
2000Igorella Feng et al. p. 373
2002Igorella Parkhaev p. 34
2002Igorellina Parkhaev p. 34
2002Chabaktiella Parkhaev p. 35
2002Dianella Sepkoski
2002Igorella Sepkoski
2002Igorellina Sepkoski
2002Maidipingoconus Sepkoski
2002Shabaktiella Sepkoski
2010Igorella Parkhaev and Demidenko p. 1028

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

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classHelcionelloidaPeel 1991
orderHelcionellida
superfamilyHelcionelloidea(Wenz 1938)
familyHelcionellidae
genusIgorella

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. †Igorella Rozanov et al. 1969
show all | hide all
Igorella durara Kruse 1991
Igorella hamata Yü 1979
Igorella iacobinica Geyer 1986
Igorella lata Chen et al. 1981
Igorella minuta Feng et al. 2000
Igorella monstrosa Rozanov et al. 1969
Igorella orientalis Chen et al. 1981
Igorella shabaktiensis Missarzhevsky and Mambetov 1981
Igorella talassica Missarzhevsky and Mambetov 1981
Igorella ungulata Rozanov et al. 1969
Igorella xilingensis Chen et al. 1981
Igorella xundianensis Wang 1994
Invalid names: Bemellina Vassiljeva 1998 [synonym], Chabaktiella Missarzhevsky and Mambetov 1981 [synonym], Compressoconus Vassiljeva 1998 [synonym], Dianella Wang 1994 [synonym], Igorellina Missarzhevsky 1989 [synonym], Maidipingoconus Yü 1979 [synonym], Songlinella Chen et al. 1981 [synonym]
Diagnosis
ReferenceDiagnosis
P. Y. Parkhaev and Y. Demidenko 2010"Shell cap-shaped, high, considerably compressed laterally. Apex inclined and displaced posteriorly, significantly projecting over posterior apertural margin. Anterior field convex, posterior field concave and relatively long. Aperture oval or elliptical, simple, without sinuses or flaring. Ornamentation represented by concentric folds or ribs developed to different extent, rarely radial ribs or striation can be present."