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Dasometopus

Trilobita - Holocephalinidae

Taxonomy
Dasometopus was named by Resser (1936) [Sepkoski's age data: Cm uMid-l Cm uMid-u Sepkoski's reference number: 80]. Its type is Harpides breviceps.

It was assigned to Conocoryphidae by Resser (1936); to Ptychopariida by Sepkoski (2002); and to Holocephalinidae by Jell and Adrain (2002).

Synonymy list
YearName and author
1936Dasometopus Resser p. 21
2002Dasometopus Jell and Adrain p. 364
2002Dasometopus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumMandibulata
classTrilobitaWalch 1771
familyHolocephalinidaeHupé 1953
genusDasometopus

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
ReferenceDiagnosis
C. E. Resser 1936Cephalon alone known. Cephalon semicircular, eye- less. Glabella well defined, tapered, a little more than half the length of the head. Glabellar furrows present, the rear pair recurved, sepa- rating marginal lobes. Cheeks marked by irregular lines radiating from the dorsal furrow. Upturned rim with coarse granules ; other scattered granules on cheeks. A depression extends across the pre- glabellar area.