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Eumorphia

Malacostraca - Decapoda - Mecochiridae

Taxonomy
Eumorphia was named by von Meyer (1847). Its type is Carcinium sociale.

It was synonymized subjectively with Mecochirus by Feldmann et al. (2015).

It was assigned to Mecochiridae by Dadykin and Shmakov (2023), Charbonnier et al. (2025).

Synonyms
Synonymy list
YearName and author
1841Carcinium Meyer
1847Eumorphia von Meyer
2018Romaniacheiros Frantescu et al.
2023Eumorphia Dadykin and Shmakov p. 1053
2024Romaniacheiros Schweitzer and Feldmann p. 13
2025Eumorphia Charbonnier et al. p. 610

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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)
RankNameAuthor
superclassMulticrustaceaRegier et al. 2010
classMalacostraca()
subclassEumalacostracaGrobben 1892
—CaridoidaHessler 1982
orderDecapoda
suborderPleocyemataBurkenroad 1963
—Reptantia(Boas)
infraorderGlypheideaWinckler 1882
superfamilyGlypheoideaWinckler 1882
familyMecochiridaeVan Straelen 1925
genusEumorphiavon Meyer 1847

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.

G. †Eumorphia von Meyer 1847
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†Eumorphia clypeatus Carter 1898
†Eumorphia fabianmuelleri Charbonnier et al. 2025
†Eumorphia houdardi van Straelen 1936
†Eumorphia lophia Frantescu et al. 2018
†Eumorphia olifex Quenstedt 1856
†Eumorphia socialis Von Meyer 1841
Invalid names: Carcinium Meyer 1841 [replaced], Romaniacheiros Frantescu et al. 2018 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: chitinc
Locomotion: actively mobilec
Life habit: infaunalf
Diet: carnivoreo
Vision: well-developedc
Created: 2022-11-16 16:10:18
Modified: 2022-11-16 16:10:18
Source: f = family, o = order, c = class
References: Turnsek 1997, Aberhan 1992, Fearon and Clapham 2023

Age range: base of the Semicostatum to the top of the Early/Lower Albian or 199.50000 to 110.10000 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Semicostatum - Turneri199.5 - 192.9Germany Mecochirus olifex (275738)
Bathonian168.2 - 165.3United Kingdom (England) Gebia clypeatus (275739 275741)
Callovian165.3 - 161.5France E. socialis (275736)
Early/Lower Callovian165.3 - 161.5Germany E. fabianmuelleri (275742)
Late/Upper Callovian165.3 - 161.5Russian Federation (Ryazan) E. sp. (221308)
Middle Callovian - Late/Upper Callovian165.3 - 161.5Germany Carcinium sociale (275735)
Early/Lower Oxfordian161.5 - 154.8United Kingdom (England) Mecochirus socialis (93210 191842 191843)
Oxfordian161.5 - 154.8United Kingdom (England) E. socialis (275737)
Early/Lower Albian113.2 - 110.1France (Marne) Mecochirus houdardi (233997)
Albian113.2 - 100.5France (Haute-Marne) Mecochirus houdardi (139708)
Albian113.2 - 100.5France (Doubs) Mecochirus houdardi (233998)
Albian113.2 - 100.5Switzerland Mecochirus houdardi (275743)