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Piochella
Taxonomy
Piochella was named by Sundberg and McCollum (2003). Its type is Piochella peasleensis.
It was assigned to Ptychopariidae by Jell and Adrain (2002); and to Ptychopariacea by Sundberg and McCollum (2003).
It was assigned to Ptychopariidae by Jell and Adrain (2002); and to Ptychopariacea by Sundberg and McCollum (2003).
Species
P. peasleensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Piochiella Jell and Adrain p. 426 |
| 2003 | Piochella Sundberg and McCollum p. 349 |
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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.
G. †Piochella Sundberg and McCollum 2003
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†Piochella peasleensis Sundberg and McCollum 2003
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg and L.B. McCollum 2003 | Cranidium pentagonal in outline with moderately low relief; anterior branches of facial suture parallel to mod~rately convergent; posterior branch slightly divergent, nearly parallel; glabella moderately to strongly tapered, frontal lobe bluntly rounded, straight or slightly convex glabellar outline, lateral gla- bellar furrows and axial furrows nearly effaced; anterior border narrow, upturned; border furrow wide; palpebral lobes moderately long, posteriorly placed; fixigena slightly convex, level; anterior area moderately downsloping, posterior area extending slightly past palpebral lobes. Exoskeleton smooth. |