Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ptychotrygon triangularis
Taxonomy
Ptychodus triangularis was named by Reuss (1845).
It was synonymized subjectively with Ptychotrygon vermiculata by Case and Schwimmer (1988); it was recombined as Ptychotrygon triangularis by Cappetta (1973), Cappetta and Case (1975), Herman (1977), Williamson et al. (1989), Cappetta and Case (1999), Kriwet et al. (2009) and Maisch et al. (2021).
It was synonymized subjectively with Ptychotrygon vermiculata by Case and Schwimmer (1988); it was recombined as Ptychotrygon triangularis by Cappetta (1973), Cappetta and Case (1975), Herman (1977), Williamson et al. (1989), Cappetta and Case (1999), Kriwet et al. (2009) and Maisch et al. (2021).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1845 | Ptychodus triangularis Reuss |
1973 | Ptychotrygon triangularis Cappetta p. 511 figs. Pl 2, figs 1-6 |
1975 | Ptychotrygon triangularis Cappetta and Case p. 295 |
1977 | Ptychotrygon triangularis Herman p. 298 |
1989 | Ptychotrygon triangularis Williamson et al. p. 241 figs. 3H-K |
1999 | Ptychotrygon triangularis Cappetta and Case p. 40 figs. Pl 26, figs 1-8 |
2009 | Ptychotrygon triangularis Kriwet et al. p. 333 |
2021 | Ptychotrygon triangularis Maisch et al. pp. 17, 18 figs. 9D-O |
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.
†Ptychotrygon triangularis Reuss 1845
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
Source: o = order, subp = subphylum | |||||
References: Carroll 1988, Wagner 2023, Hendy et al. 2009 |
Age range: base of the Late/Upper Turonian to the top of the Early/Lower Maastrichtian or 93.50000 to 66.00000 Ma
Collections (13 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Turonian | USA (South Dakota) | Ptychotrygon triangularis (181902) | |
Turonian - Coniacian | USA (New Mexico) | Ptychotrygon triangularis (221290) | |
Late/Upper Turonian | USA (South Dakota) | Ptychotrygon triangularis (213291) | |
Late/Upper Turonian | USA (Texas) | Ptychotrygon triangularis (213299 213304) | |
Middle Turonian | USA (Nebraska) | Ptychotrygon triangularis (213389) | |
Middle Turonian | USA (New Mexico) | Ptychotrygon triangularis (179267) | |
Middle Turonian | USA (Kansas) | Ptychotrygon triangularis (35365) | |
Early/Lower Santonian - Middle Santonian | USA (Georgia) | Ptychotrygon triangularis (61769) | |
Early/Lower Campanian - Middle Campanian | USA (North Carolina) | Ptychotrygon triangularis (128412) | |
Late/Upper Campanian | USA (New Mexico) | Ptychotrygon triangularis (52052) | |
Middle Campanian - Late/Upper Campanian | USA (Montana) | Ptychotrygon triangularis (177498) | |
Early/Lower Maastrichtian | Jordan | Ptychotrygon triangularis (65222) |