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Physemataspis (Prophysemataspis)
Taxonomy
Physemataspis (Prophysemataspis) was named by Lespérance and Desbiens (1995). Its type is Encrinuroides uncatus. It was considered monophyletic by Lespérance and Desbiens (1995).
It was reranked as Prophysemataspis by Jell and Adrain (2002).
It was assigned to Physemataspis by Lespérance and Desbiens (1995); and to Encrinuridae by Jell and Adrain (2002).
It was reranked as Prophysemataspis by Jell and Adrain (2002).
It was assigned to Physemataspis by Lespérance and Desbiens (1995); and to Encrinuridae by Jell and Adrain (2002).
Species lacking formal opinion data
Synonymy list
Year | Name and author |
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1995 | Physemataspis (Prophysemataspis) Lespérance and Desbiens p. 11 |
2002 | Prophysemataspis Jell and Adrain p. 431 |
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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.
Subg. †Physemataspis (Prophysemataspis) Lespérance and Desbiens 1995
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Diagnosis
Reference | Diagnosis | |
---|---|---|
P. J. Lespérance and D. Desbiens 1995 | Glabellae 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. |