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Tricarilda toddi

Gastropoda - Heterostropha - Mathildidae

Discussion

Diagnosis. Protoconch distinctly protruding, with radial wrinkles on both sides; early teleoconch with keel at middle primary spiral rib; whorl face more or less convex in later teleoconch whorls; relatively early, a secondary spiral rib is intercalated between adapical and middle primary spiral ribs; additional spiral ribs appear during ontogeny; early teleoconch with few axial ribs; later whorls with axial ornament of enhanced growth lines.

Taxonomy
Tricarilda toddi was named by Gründel et al. (2011). Its type specimen is MG 1421 and is a 3D body fossil. Its type locality is Thorncombe Sands, Dorset, UK, which is in a Margaritatus marine horizon in the Beacon Limestone Formation of the United Kingdom.

Synonymy list
YearName and author
2011Tricarilda toddi Gründel et al. p. 498 figs. 12A-I
2013Tricarilda toddi Gründel and Nützel p. 806

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
orderHeterostropha()
orderAllogastropodaHaszprunar 1985
superfamilyMathildoideaDall 1889
familyMathildidaeDall 1889
genusTricarilda(Grundel 1973)
speciestoddi

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.

Diagnosis
No diagnoses are available