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Ptychotrygon triangularis

Chondrichthyes - Rajiformes - Ptychotrygonidae

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).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1845Ptychodus triangularis Reuss
1973Ptychotrygon triangularis Cappetta p. 511 figs. Pl 2, figs 1-6
1975Ptychotrygon triangularis Cappetta and Case p. 295
1977Ptychotrygon triangularis Herman p. 298
1989Ptychotrygon triangularis Williamson et al. p. 241 figs. 3H-K
1999Ptychotrygon triangularis Cappetta and Case p. 40 figs. Pl 26, figs 1-8
2009Ptychotrygon triangularis Kriwet et al. p. 333
2021Ptychotrygon triangularis Maisch et al. pp. 17, 18 figs. 9D-O

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
RankNameAuthor
subclassElasmobranchiiBonaparte 1838
infraclassEuselachii()
NeoselachiiCompagno 1977
superorderBatomorphii
orderRajiformesBerg 1940
suborderSclerorhynchoidei
familyPtychotrygonidae
genusPtychotrygonJaekel 1894
speciestriangularis(Reuss 1845)

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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Created: 2009-07-21 07:15:23
Modified: 2009-07-21 09:15:23
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
Turonian93.9 - 89.8USA (South Dakota) Ptychotrygon triangularis (181902)
Turonian - Coniacian93.9 - 86.3USA (New Mexico) Ptychotrygon triangularis (221290)
Late/Upper Turonian93.5 - 89.3USA (South Dakota) Ptychotrygon triangularis (213291)
Late/Upper Turonian93.5 - 89.3USA (Texas) Ptychotrygon triangularis (213299 213304)
Middle Turonian93.5 - 89.3USA (Nebraska) Ptychotrygon triangularis (213389)
Middle Turonian93.5 - 89.3USA (New Mexico) Ptychotrygon triangularis (179267)
Middle Turonian93.5 - 89.3USA (Kansas) Ptychotrygon triangularis (35365)
Early/Lower Santonian - Middle Santonian85.8 - 83.5USA (Georgia) Ptychotrygon triangularis (61769)
Early/Lower Campanian - Middle Campanian83.5 - 70.6USA (North Carolina) Ptychotrygon triangularis (128412)
Late/Upper Campanian83.5 - 70.6USA (New Mexico) Ptychotrygon triangularis (52052)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Montana) Ptychotrygon triangularis (177498)
Early/Lower Maastrichtian70.6 - 66.0Jordan Ptychotrygon triangularis (65222)