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Pontisia costata
Taxonomy
Pontisia costata was named by Cooper and Grant (1976). Its type specimen is USNM 152843a, a shell (Articulated shell), and it is not a trace fossil. Its type locality is USNM705a, Hess Ranch, Glass Mountains, which is in a Kungurian reef, buildup or bioherm limestone in the Skinner Ranch Formation of Texas.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Pontisia costata Cooper and Grant p. 2019 figs. Pl 529, figs 8-26 |
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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.
†Pontisia costata Cooper and Grant 1976
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 4.81 | 3.40 | 5.80 | 5.10 | 0.895 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Artinskian to the top of the Kungurian or 290.10000 to 274.40000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | USA (Texas) | Pontisia costata (75930 75935) | |
| Kungurian | USA (Texas) | Pontisia costata (type locality: 43534) |