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Ectenaspis beckeri

Trilobita - Asaphida

Taxonomy
Megalaspis beckeri was named by Slocom (1913). Its type specimen is UC 41151, a skeleton (nearly complete, testate individual), and it is a 3D body fossil. Its type locality is Ravine 2 miles west of Clermont, which is in a Richmondian carbonate limestone/shale in the Elgin Formation of Minnesota.

It was recombined as Ectenaspis beckeri by Raymond (1920), Walter (1925) and Amati (2014).

Synonymy list
YearName and author
1913Megalaspis beckeri Slocom p. 50 figs. pI. XIV, fig. 5
1916Megalaspis beckeri Slocom p. 196 figs. pI. XV, fig. 5
1920Ectenaspis beckeri Raymond p. 292
1925Ectenaspis beckeri Walter pp. 201 - 203 figs. Plate XIII, figs. 8, 9. Plate XXVII, fig. 22.
2014Ectenaspis beckeri Amati figs. pl. 14 f. 1; pl. 17 f. 1

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
subclassLibristomaFortey 1990
orderAsaphidaSalter 1864
genusEctenaspisRaymond 1920
speciesbeckeri(Slocom 1913)

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.

Diagnosis
No diagnoses are available