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Ptychodus decurrens

Chondrichthyes - Hybodontiformes - Ptychodontidae

Taxonomy
Ptychodus decurrens was named by Agassiz (1838). Its type specimen is BMNH P.5449, a set of teeth, and it is a 3D body fossil.

Sister species lacking formal opinion data
P. wipplei

Synonyms
Synonymy list
YearName and author
1838Ptychodus decurrens Agassiz figs. Pl 25b, figs 1-8
1839Ptychodus decurrens Agassiz p. 154
1850Ptychodus depressus Dixon p. 363
1850Ptychodus oweni Dixon p. 364
1889Ptychodus decurrens Woodward p. 138
1889Ptychodus oweni Woodward p. 138
1889Ptychodus multistriatus Woodward p. 146
1902Ptychodus decurrens Hay p. 317
1935Ptychodus decurrens Dalinkevičius p. 262
1999Ptychodus decurrens Cappetta and Case p. 11 figs. Pl 2, figs 8-10
2006Ptychodus decurrens Shimada et al. p. 6 figs. 6.3, 6.4
2008Ptychodus decurrens Shimada and Martin p. 91 fig. 4B
2010Ptychodus decurrens Underwood and Cumbaa p. 911 figs. Pl 3, figs 1-6
2019Ptychodus decurrens Amadori et al. p. 230
2020Ptychodus decurrens Amalfitano et al. p. 267 fig. 6
2023Ptychodus decurrens Amadori et al. p. 4 fig. 2B,D,L.M

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
classChondrichthyes
subclassElasmobranchiiBonaparte 1838
infraclassEuselachii()
orderHybodontiformes(Patterson 1966)
familyPtychodontidae
genusPtychodus
speciesdecurrens

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.

†Ptychodus decurrens Agassiz 1838
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Invalid names: Ptychodus depressus Dixon 1850 [synonym], Ptychodus multistriatus Woodward 1889 [synonym], Ptychodus oweni Dixon 1850 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilec
Life habit: nektonicc
Diet: carnivorec
Created: 2004-08-17 13:49:23
Modified: 2009-12-13 03:31:01
Source: c = class, subp = subphylum
References: Carroll 1988, Wagner 2023

Age range: base of the Late/Upper Cenomanian to the top of the Turonian or 99.60000 to 89.80000 Ma

Collections (20 total)


Time interval Ma Country or state Original ID and collection number
Cenomanian100.5 - 93.9Ukraine Ptychodus decurrens (231904)
Late/Upper Cenomanian99.6 - 93.5Italy (Treviso) Ptychodus decurrens (214716)
Late/Upper Cenomanian99.6 - 93.5USA (Kansas) Ptychodus decurrens (213416 213417 213418 213419)
Late/Upper Cenomanian99.6 - 93.5Italy (Vicenza) Ptychodus decurrens (214715)
Late/Upper Cenomanian99.6 - 93.5Italy Ptychodus decurrens (214600)
Late/Upper Cenomanian99.6 - 93.5Lithuania Ptychodus decurrens (213713 213719 213720)
Middle Cenomanian99.6 - 93.5USA (Colorado) Ptychodus decurrens (35429)
Middle Cenomanian99.6 - 93.5USA (Kansas) Ptychodus decurrens (94538)
Middle Cenomanian99.6 - 93.5Canada (Saskatchewan) Ptychodus decurrens (22731 52997)
Turonian93.9 - 89.8USA (Texas) Ptychodus decurrens (213306)
Early/Lower Turonian93.5 - 89.3Brazil (Sergipe) Ptychodus decurrens (143101)
Early/Lower Turonian93.5 - 89.3United Kingdom (England) Ptychodus decurrens (4071 4072)
Late/Upper Turonian93.5 - 89.3USA (Texas) Ptychodus decurrens (213304)