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Acirsa (Hemiacirsa) americana

Gastropoda - Epitoniidae

Taxonomy
Proscala americana was named by Wade (1926) [m. kosnik taxon no: 3128 also Kosnik's taxon 2322 (duplicate entry)]. Its type locality is Dave Weeks place, Coon Creek, which is in a Campanian coastal sandstone in the Ripley Formation of Tennessee.

It was recombined as Acirsa (Hemiacirsa) americana by Sohl (1964).

Sister species lacking formal opinion data
A. kelseyi, A. solumcostata, A. duvergieri, A. ofunatoensis

Synonymy list
YearName and author
1964Acirsa (Hemiacirsa) americana Sohl p. 314

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassCaenogastropoda(Cox 1959)
superfamilyEpitonioidea(Berry 1910)
familyEpitoniidaeBerry 1910
genusAcirsaMörch 1857
subgenusHemiacirsa(de Boury 1890)
speciesamericana(Wade 1926)

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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitef
Composition 2: low Mg calcitef
Locomotion: slow-movingf
Life habit: low-level epifaunalf
Diet: carnivoref
Vision: limitedc
Created: 2007-02-05 23:13:43
Modified: 2011-09-22 17:20:39
Source: f = family, c = class
References: Kiessling 2004, Beu et al. 1990

Age range: base of the Maastrichtian to the top of the Early/Lower Maastrichtian or 72.10000 to 66.00000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian83.5 - 70.6USA (Tennessee) Proscala americana (type locality: 88357)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (Tennessee) Acirsa americana (7515)
Maastrichtian72.1 - 66.0USA (Texas) Acirsa americana (205541)
Early/Lower Maastrichtian70.6 - 66.0USA (Georgia) Acirsa americana (4282)
Early/Lower Maastrichtian70.6 - 66.0USA (Alabama) Acirsa americana (4275)
Late/Upper Maastrichtian70.6 - 66.0USA (Maryland) Acirsa americana (4372)