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Callianassa alpha

Malacostraca - Decapoda - Callianassidae

Discussion

Callianassa alpha Rathbun is now Callianassa zeta (Rathbun, 1936, Corrections of Names of Fossil Decapod Crustaceans)

Taxonomy
Callianassa alpha was named by Stenzel (1935) [Rathbun 1935 lists Callianassa alpha as a new species, but it is not regarded as such in the 1935 reference because it was already named new by Stenzel in this 1935 reference. Also, in her 1935 reference, Rathbun named Callianassa alpha var. Rathbun n. sp. which is assumed to be equal to Callianassa alpha n. sp. by Stenzel in 1935.]. It is a 3D body fossil. Its type locality is Chickasawhay River, which is in an Eocene carbonate marl in the Winona Formation of Mississippi.

Sister species lacking formal opinion data
C. rakosensis, C. symmetricus

Synonymy list
YearName and author
1935Callianassa alpha Stenzel p. 391
2010Callianassa alpha Schweitzer et al. p. 33

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaLatreille 1829
—Deuteropoda
—Mandibulata
—PancrustaceaZrzavý and Štys 1997
—Hymenostraca(Rolfe 1969)
RankNameAuthor
superclassMulticrustaceaRegier et al. 2010
classMalacostraca()
subclassEumalacostracaGrobben 1892
—CaridoidaHessler 1982
orderDecapoda
suborderPleocyemataBurkenroad 1963
infraorderAxiideaSaint Laurent 1979
familyCallianassidaeDana 1852
genusCallianassaLeach 1814
speciesalpha

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.

†Callianassa alpha Stenzel 1935
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: chitinc
Locomotion: actively mobilec
Life habit: infaunalinfrao
Diet: detritivoreinfrao
Vision: well-developedc
Created: 2022-08-23 13:23:00
Modified: 2022-09-26 19:20:17
Source: infrao = infraorder, c = class
References: Aberhan 1992, Valdez and Clapham 2023

Age range: base of the Thanetian to the top of the Late/Upper Eocene or 59.20000 to 33.90000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Thanetian59.2 - 56.0USA (Alabama) Callianassa alpha (142748)
Middle Eocene47.8 - 37.71USA (Mississippi) Callianassa alpha (type locality: 134725)
Middle Eocene47.8 - 37.71USA (Texas) Callianassa alpha (134728)
Late/Upper Eocene37.2 - 33.9USA (Mississippi) Callianassa alpha (142751)