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Mathilda (Echinimathilda)

Gastropoda - Heterostropha - Mathildidae

Taxonomy
Mathilda (Echinimathilda) was named by Sohl (1960) [Sepkoski's age data: K Maes]. Its type is Mathilda (Echinimathilda) corona.

It was reranked as Echinimathilda by Sepkoski (2002), Squires and Saul (2003), Groves and Nielsen (2003), Gründel and Nützel (2013).

It was assigned to Mathilda by Sohl (1960); to Neotaenioglossa by Sepkoski (2002); and to Mathildidae by Squires and Saul (2003), Groves and Nielsen (2003), Gründel and Nützel (2013).

Subtaxa
Mathilda (Echinimathilda) corona (type species), Mathilda (Echinimathilda) unionensis
Species lacking formal opinion data
Echinimathilda corona, Echinimathilda microstriata, Echinimathilda moonkinua, Echinimathilda parvula, Mathilda abbreviata, Mathilda baylei, Mathilda bezanconi, Mathilda bimorpha, Mathilda biserta, Mathilda bonneti, Mathilda bourdoti, Mathilda brocchii, Mathilda claibornensis, Mathilda claibornensis, Mathilda claibornesis, Mathilda clathratula, Mathilda concinna, Mathilda concinna, Mathilda crebricosta, Mathilda cribraea, Mathilda cribraea, Mathilda cribraea, Mathilda crispula, Mathilda crossei, Mathilda duogenta, Mathilda elongatoides, Mathilda granosa, Mathilda hexalira, Mathilda insulindae, Mathilda iugum, Mathilda iugum, Mathilda kaiparaensis, Mathilda kauffmani, Mathilda leana, Mathilda leona, Mathilda loochooensis, Mathilda malvinarum, Mathilda margaritula, Mathilda marylandensis, Mathilda monilis, Mathilda njalindugensis, Mathilda parva, Mathilda plexita, Mathilda praeclara, Mathilda quadricincta, Mathilda quadrivittata, Mathilda retisculpta, Mathilda retisculpta, Mathilda retisculpta, Mathilda sandbergeri, Mathilda scabrella, Mathilda singularis, Mathilda unicarinata

Synonymy list
YearName and author
1960Mathilda (Echinimathilda) Sohl p. 131
2002Echinimathilda Sepkoski
2003Echinimathilda Groves and Nielsen p. 158
2003Echinimathilda Squires and Saul p. 158
2013Echinimathilda Gründel and Nützel p. 820

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
orderHeterostropha()
orderAllogastropodaHaszprunar 1985
superfamilyMathildoideaDall 1889
familyMathildidaeDall 1889
genusMathildaSemper 1865
subgenusEchinimathilda

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.

Subg. †Mathilda (Echinimathilda) Sohl 1960
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Diagnosis
ReferenceDiagnosis
L. T. Groves and S. N. Nielsen 2003Shell small to medium, turritelliform. Protoconch partly submerged and anastrophic. Teleoconch whorls shouldered and basally angulate, sides rounded. Sculpture of strong spiral cords and finer collabral riblets. Aperture semicircular to subovate. Columellar lip reflected.
R. L. Squires and L. R. Saul 2003(modified after Sohl, 1960 and Dockery, 1993): Shell small to medium, turritelliform. Protoconch partly submerged and anastrophic. Teleoconch whorls shouldered and basally angulate, sides rounded. Sculpture of strong spiral cords and finer collabral riblets. Aperture semicircular to subovate. Columellar lip reflected.
Measurements
No measurements are available
Composition: aragonitec
Locomotion: actively mobilef
Life habit: epifaunalf
Diet: carnivoref
Vision: limitedc
Created: 2009-09-10 07:25:45
Modified: 2009-09-10 09:25:45
Source: f = family, c = class
References: Kiessling 2004, Hendy et al. 2009

Age range: base of the Early/Lower Maastrichtian to the top of the Lutetian or 72.20000 to 41.03000 Ma

Collections (16 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Maastrichtian72.2 - 66.0USA (Georgia) Mathilda corona (4282)
Early/Lower Maastrichtian72.2 - 66.0USA (Mississippi) Mathilda unionensis (7590 7592 7593 7602)
Late/Upper Maastrichtian72.2 - 66.0USA (Mississippi) Mathilda corona (4127)
Late/Upper Maastrichtian72.2 - 66.0USA (Texas) Mathilda corona (4488 4492)
Late/Upper Maastrichtian72.2 - 66.0USA (Maryland) Mathilda corona (4369)
Maastrichtian72.2 - 66.0USA (Tennessee) Mathilda unionensis (205445)
Maastrichtian72.2 - 66.0USA (Mississippi) Mathilda unionensis (7527)
Danian66.0 - 61.66USA (Texas) Mathilda duogenta (205466)
Ypresian56.0 - 48.07USA (Texas) Mathilda cribraea (178054)
Lutetian48.07 - 41.03USA (Texas) Mathilda cribraea (205520 205521 205533)