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Physemataspis (Prophysemataspis)

Trilobita - Phacopida - Encrinuridae

Taxonomy

Synonymy list
YearName and author
1995Physemataspis (Prophysemataspis) Lespérance and Desbiens p. 11
2003Prophysemataspis Jell and Adrain p. 431

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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
subgenusProphysemataspis

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
P. J. Lespérance and D. Desbiens 1995Glabellae with straight or concave outwards outlines, 13-15 tubercle size index, and L1-L2-L3 glabellar tubercle pairs; hypostomata with rhynchos; pygidia with 14-18 axial rings, 7-8 pleural ribs, and sagittal axial tubercles.