Lesueurillidae is an extinct family of paleozoic molluscs (gastropods?) with anisostrophically coiled shells of uncertain position (Gastropoda?) (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
| Lesueurillidae | |
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| Lesueurilla helix | |
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| Family: | Lesueurillidae P. J. Wagner, 2002[1]
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Taxonomy
editThe taxonomy of the Gastropoda by Bouchet & Rocroi, 2005[2] categorizes Lesueurillidae in the superfamilia Euomphaloidea within the Paleozoic molluscs with anisostrophically coiled shells of uncertain position (Gastropoda?). This family has no subfamilies.
Genera
editGenera in the family Lesueurillidae include[3]
- Eccyliopterus Remelé, 1888
- Eccyliopterus abendanoni
- Eccyliopterus alatus (Roemer, 1876) - type species
- Eccyliopterus corniculum
- Eccyliopterus declivis Koken, 1925 - synonym: Eccyliopterus spirillum.
- Eccyliopterus incresens
- Eccyliopterus ottawaensis
- Eccyliopterus owenanus
- Eccyliopterus regularis - synonym: Eccyliopterus princeps.
- Eccyliopterus replicata
- Eccyliopterus septiferus
- Eccyliopterus tolli
- Eccyliopterus vagrans
- Lesueurilla Koken, 1898 - type genus of the family Lesueurillidae
- Lesueurilla acutangulum
- Lesueurilla bohemica
- Lesueurilla beloitensis
- Lesueurilla dilatata
- Lesueurilla grandis
- Lesueurilla helix
- Lesueurilla infundibulum (Koken, 1896) - type species
- Lesueurilla isabellaensis
- Lesueurilla kushanensis
- Lesueurilla louderbacki
- Lesueurilla magna
- Lesueurilla prima
- Lesueurilla shirakii
- Lesueurilla sinkiangensis
- Mestoronema P. J. Wagner, 2002[1]
- Mestoronema bipatellare Koken, 1925 - type species
- Mestoronema marginalis (Koken, 1925)
- Mestoronema scotica (Longstaff, 1924)
Description
editFossils of family Lesueurillidae has sharp peripheral band and a short notch formed from deep V-shaped sinus.[1] They are similar to Maclurites but they differ in early ontogenesis from them.[1]
References
edit- ^ a b c d Wagner P. J. 2002. Phylogenetic relationships of the earliest anisostrophically coiled gastropods. Smithsonian Contributions to Paleobiology, 88: 152 pp. Page 75.
- ^ Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. Classification and nomenclator of gastropod families. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. ISBN 3-925919-72-4. ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278
- ^ Lesueurillidae. The Paleobiology Database, accessed 13 August 2009.