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Morphology Ecology and taphonomy   Age range and collections

Physemataspis

Trilobita - Phacopida - Encrinuridae

Taxonomy
Physemataspis was named by Evitt and Tripp (1977) [Sepkoski's age data: O Llde-u O Cara-l Sepkoski's reference number: 795]. It is not extant. Its type is Physemataspis coopi. It was considered monophyletic by Moss and Westrop (2014).

It was assigned to Phacopida by Sepkoski (2002); and to Encrinurinae by Moss and Westrop (2014).

Synonymy list
YearName and author
1977Physemataspis Evitt and Tripp
2002Physemataspis Sepkoski, Jr.
2014Physemataspis Moss and Westrop p. 1096

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
familyEncrinuridaeAngelin 1854
subfamilyEncrinurinaeAngelin 1854
genusPhysemataspisEvitt and Tripp 1977

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