| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tonopahella
Taxonomy
Tonopahella was named by Sundberg and McCollum (2003). Its type is Tonopahella goldfieldensis.
It was assigned to Ptychopariina by Sundberg and McCollum (2003); and to Ptychopariidae by Handkamer et al. (2022).
It was assigned to Ptychopariina by Sundberg and McCollum (2003); and to Ptychopariidae by Handkamer et al. (2022).
Species
T. goldfieldensis (type species), T. walcotti
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Tonopahella Sundberg and McCollum pp. 980-981 figs. pl. 7, fig. 1-6 |
| 2022 | Tonopahella Handkamer et al. pp. 42- 43 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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. †Tonopahella Sundberg and McCollum 2003
show all | hide all
†Tonopahella goldfieldensis Sundberg and McCollum 2003
†Tonopahella walcotti Sundberg and McCollum 2000
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg and L.B. McCollum 2003 | "Cranidia with glabella with deep axial furrows that bow inwards in outline, and S1 and S2 lateral glabellar furrows moderately deep. Palpebral lobes slightly upturned and modrately long (averages 40-45 per cent glabellar lenght). Ocular ridge directed slightly posterolaterally (averages 75-80 degrees). Anterior border level; border furrow shallow to moderately shallow; weakly curved, and interborder furrow absent. Anterior branches of facial suture slightly bowed. Fixigena with anterior area slightly downsloping; posterior area of moderate width (with averages 75-90 per cent glabellar lenght),moderately short (averages 35-40 of basal glabellar lenght); lateral extension of posterior branches not parallel. Librigenae with border area having triangular cross-section, genal spine moderately long, straight, and with moderately wide base. Thoracic segments with well-developed fulcrum, short pleural spines. Pygidia with pleural furrows weakly developed; anterolateral corners rounded, no pygidial spines or lobes. Pustules absent." |