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Ptychotrygon blainensis
Taxonomy
Ptychotrygon blainensis was named by Case (1978). Its type specimen is MTA 33, a tooth, and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Ptychotrygon blainensis Case p. 197 figs. 16; Pl. 4:7a-c, 8a-d |
| 1999 | Ptychotrygon blainensis Cappetta and Case p. 39 figs. Pl 26, figs 9,10 |
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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.
†Ptychotrygon blainensis Case 1978
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009, Wagner 2023 | |||||
Age range: base of the Early/Lower Campanian to the top of the Late/Upper Campanian or 83.60000 to 72.20000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Campanian | USA (Texas) | Ptychotrygon blainensis (213303) | |
| Late/Upper Campanian | USA (Montana) | Ptychotrygon blainensis (69150) | |
| Late/Upper Campanian | USA (New Mexico) | Ptychotrygon blainensis (14472) | |
| Middle Campanian - Late/Upper Campanian | USA (Montana) | Ptychotrygon blainensis (69153 69161) |