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Portunites macrospinus

Malacostraca - Decapoda - Carcinidae

Taxonomy
Portunites macrospinus was named by Schweitzer et al. (2000). Its type specimen is CM 45833, a shell, and it is a 3D body fossil. Its type locality is Pulali Point, Aldwell Formation, which is in an Eocene marine conglomerate/siltstone in the Aldwell Formation of Washington.

It was recombined as Megokkos macrospinus by Schweitzer and Feldmann (2000), Nyborg et al. (2003), Schweitzer et al. (2010), Schweitzer et al. (2021).

Sister species lacking formal opinion data

Synonymy list
YearName and author
2000Portunites macrospinus Schweitzer et al. p. 39
2000Megokkos macrospinus Schweitzer and Feldmann p. 641
2003Megokkos macrospinus Nyborg et al. p. 324
2010Megokkos macrospinus Schweitzer et al. p. 107
2021Megokkos macrospinus Schweitzer et al. p. 11 fig. 5.1a,b

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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)
superclassMulticrustaceaRegier et al. 2010
classMalacostraca()
subclassEumalacostracaGrobben 1892
RankNameAuthor
CaridoidaHessler 1982
orderDecapoda
suborderPleocyemataBurkenroad 1963
Reptantia(Boas)
MeiuraSaint Laurent 1980
infraorderBrachyura()
Eubrachyurade Saint Laurent 1980
HeterotremataGuinot 1977
superfamilyPortunoideaRafinesque 1815
familyCarcinidaeMacLeay 1838
subfamilyPolybiinaePaulson 1875
genusPortunites
speciesmacrospinus

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.

Portunites macrospinus Schweitzer et al. 2000
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: chitinc
Locomotion: actively mobilec
Life habit: semi-infaunalf
Diet: carnivoreo
Vision: well-developedc
Created: 2022-11-16 17:22:41
Modified: 2022-11-16 17:22:41
Source: f = family, o = order, c = class
References: Fearon and Clapham 2023, Turnsek 1997, Aberhan 1992

Age range: Middle Eocene or 47.80000 to 37.71000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Middle Eocene47.8 - 37.71USA (Washington) Portunites macrospinus (type locality: 202157)