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Ehmaniella quadrans

Trilobita - Ptychopariida - Alokistocaridae

Taxonomy
Crepicephalus (Loganellus) quadrans was named by Hall and Whitfield (1877). It is the type species of Ehmaniella.

It was recombined as Ehmaniella quadrans by Palmer (1954).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1877Crepicephalus (Loganellus) quadrans Hall and Whitfield p. 238 figs. pl. 2, figs. 11-13
1954Ehmaniella quadrans Palmer p. 76 figs. Plate 17, figures 1-5

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyAlokistocaridaeResser 1939
genusEhmaniellaResser 1937
speciesquadrans(Hall and Whitfield 1877)

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.

Ehmaniella quadrans Hall and Whitfield 1877
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Diagnosis
No diagnoses are available