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Ptychomphalus expansus

Gastropoda - Ptychomphalidae

Taxonomy
Helicina expansa was named by Sowerby (1821). It is a 3D body fossil.

It was recombined as Cryptaenia expansa by Gemmellaro (1911); it was recombined as Ptychomphalus expansus by Cox (1928) and Szabo (1980).

Sister species lacking formal opinion data
P. jamoignacus

Synonymy list
YearName and author
1821Helicina expansa Sowerby p. 129 figs. Pl. 273 Fig. 1-3
1911Cryptaenia expansa Gemmellaro p. 214 figs. Pl 10, figs 13-19
1928Ptychomphalus expansus Cox p. 236
1980Ptychomphalus expansus Szabo p. 55 figs. Pl. 1, Fig. 9

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassVetigastropoda(Salvini-Plawen 1980)
superfamilyPtychomphaloideaWenz 1938
familyPtychomphalidae(Wenz 1938)
genusPtychomphalusAgassiz 1839
speciesexpansus(Sowerby 1821)

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.

†Ptychomphalus expansus Sowerby 1821
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitec
Locomotion: actively mobilesupero
Life habit: epifaunalsupero
Diet: grazersupero
Vision: limitedc
Created: 2009-09-10 08:55:39
Modified: 2009-09-10 10:55:39
Source: supero = superorder, c = class
References: Hendy et al. 2009, Kiessling 2004

Age range: base of the Pliensbachian to the top of the Toarcian or 190.80000 to 174.10000 Ma

Collections (17 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Sinemurian196.5 - 189.6United Kingdom (Wales) Ptychomphalus expansus (29238)
Raricostatum - Davoei196.5 - 183.0Hungary Ptychomphalus expansus (78690)
Pliensbachian190.8 - 182.7Hungary Ptychomphalus expansus (91406)
Pliensbachian190.8 - 182.7United Kingdom Ptychomphalus expansus (213654 213655)
Early/Lower Pliensbachian189.6 - 183.0Italy (Messina) Cryptaenia expansa (173593)
Ibex189.6 - 183.0United Kingdom (Dorset) Ptychomphalus expansus (159143 159147)
Jamesoni189.6 - 183.0Turkey Ptychomphalus expansus (158460)
Late/Upper Pliensbachian189.6 - 183.0Germany (North Rhine-Westphalia) Ptychomphalus expansus (225401 225406)
Late/Upper Pliensbachian189.6 - 183.0Germany Ptychomphalus expansus (23817)
Late/Upper Pliensbachian189.6 - 183.0France Ptychomphalus expansus (227111 227112)
Margaritatus189.6 - 183.0Germany (Niedersachsen) Ptychomphalus expansus (126943)
Margaritatus189.6 - 183.0Hungary Ptychomphalus expansus (109105)
Toarcian182.7 - 174.1France Ptychomphalus expansus (51608)