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Ophthalmoplax stephensoni

Malacostraca - Decapoda - Carcinidae

Taxonomy
Ophthalmoplax stephensoni was named by Rathbun (1935). It is a 3D body fossil. Its type locality is Davis Landing, right bank, Peedee River, which is in a Maastrichtian marine horizon in the Peedee Formation of South Carolina. It is the type species of Ophthalmoplax.

Sister species lacking formal opinion data
O. difuntaensis
Entered
by C. Schweitzer on 2012-02-29; modified by M. Uhen on 2019-12-27

Synonymy list
YearName and author
1935Ophthalmoplax stephensoni Rathbun p. 52
2010Ophthalmoplax stephensoni Schweitzer et al. p. 107
2021Ophthalmoplax stephensoni Schweitzer et al. p. 11 fig. 5.4a,b

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
—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
genusOphthalmoplax
speciesstephensoni

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.

†Ophthalmoplax stephensoni Rathbun 1935
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: chitinc
Locomotion: actively mobilec
Life habit: semi-infaunalsuperf
Diet: carnivoreo
Vision: well-developedc
Created: 2022-11-16 17:22:41
Modified: 2025-10-01 19:09:12
Source: f = family, superf = superfamily, o = order, c = class
References: Turnsek 1997, Fearon and Clapham 2023, Aberhan 1992

Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Campanian - Maastrichtian83.6 - 66.0USA (Texas) Ophthalmoplax stephensoni (142537)
Late/Upper Campanian - Early/Lower Maastrichtian83.6 - 66.0USA (Alabama) Ophthalmoplax stephensoni (142531)
Late/Upper Campanian - Early/Lower Maastrichtian83.6 - 66.0USA (Mississippi) Ophthalmoplax stephensoni (142536)
Late/Upper Maastrichtian72.2 - 66.0USA (South Carolina) Ophthalmoplax stephensoni (type locality: 142530)