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Morphology Ecology and taphonomy   Age range and collections

Syspacephalus

Trilobita - Ptychopariida - Ptychopariidae

Taxonomy
Syspacephalus was named by Resser (1936) [Sepkoski's age data: Cm Tojo-l Cm lMid Sepkoski's reference number: 81,475].

It was assigned to Ptychopariida by Sepkoski (2002); and to Ptychopariidae by Jell and Adrain (2003).

Synonymy list
YearName and author
1936Syspacephalus Resser
2002Syspacephalus Sepkoski, Jr.
2003Syspacephalus Jell and Adrain p. 450

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumMandibulata
classTrilobitaWalch 1771
orderPtychopariidaSwinnerton 1915
familyPtychopariidaeMatthew 1887
genusSyspacephalusResser 1936

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