Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Pseudoscapanorhynchidae

Chondrichthyes - Lamniformes - Pseudoscapanorhynchidae

Synonymy list
YearName and author
1979Pseudoscapanorhynchidae Herman p. 361
2016Pseudoscapanorhynchidae Nelson et al. p. 64
2019Pseudoscapanorhynchidae Shimada and Everhart p. 4

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
RankNameAuthor
infraclassElasmobranchii(Bonaparte 1838)
—Euselachii()
—NeoselachiiCompagno 1977
superorderGaleomorphiiCompagno 1973
orderLamniformesBerg 1958
familyPseudoscapanorhynchidae
familyPseudoscapanorhynchidae

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.

Fm. †Pseudoscapanorhynchidae Herman 1979
show all | hide all
G. †Cretodus Sokolov 1965
hide
†Cretodus crassidens Dixon 1850
+
Invalid names: Otodus pinguis Sauvage 1872 [synonym]
†Cretodus houghtonorum Shimada and Everhart 2019
†Cretodus longiplicatus Werner 1989
†Cretodus semiplicatus Agassiz 1843
+
Invalid names: Otodus crassus Woodward 1888 [synonym], Otodus divaricatus Leidy 1872 [synonym], Otodus michoni Coquand 1860 [synonym], Otodus sulcatus Geinitz 1843 [synonym], Scyllium rugosum Williston 1900 [synonym]
G. †Protolamna Cappetta 1980
hide
†Protolamna borodini Cappetta and Case 1975
†Protolamna carteri Cappetta and Case 1999
†Protolamna gigantea Case 2001
†Protolamna ricaurtei Carrillo-Briceño et al. 2019
†Protolamna roanokeensis Cappetta and Case 1999
†Protolamna sarstedtensis Schmitz et al. 2010
†Protolamna sokolovi Cappetta 1980
G. †Pseudoscapanorhynchus Herman 1977
hide
+
Invalid names: Protolamna acuta Müller and Diedrich 1991 [synonym]
Diagnosis
ReferenceDiagnosis
K. Shimada and M. J. Everhart 2019Teeth consisting of triangular principal cusp with one or two pairs of small triangular lateral cusplets and bilobed root; mesial and distal cutting edges of principal cusp and lateral cusplets smooth and unserrated; lingual face of principal cusp robust and very convex; labial face of princi- pal cusp nearly flat or weakly convex; lateral cusplets well demarcated from principal cusp but connected on labial side with basally extended crown base on both root lobes; overall crown base on labial side slightly overhanging root and either sharply ‘V’-shaped or gently concave; either or both labial and lingual sides of crown base margin tend to be ornamented with multiple vertical ridges; modest tooth neck present on lingual side; bilobed root with robust lingual protuberance showing one or multiple minute nutritive pores with or without shallow nutritive groove; basal root concavity ‘U’- or ‘V’-shaped; root lobe apices rounded and directed basally or slightly diverged.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Created: 2009-07-21 07:05:21
Modified: 2009-07-21 09:05:21
Source: o = order, subp = subphylum
References: Carroll 1988, Hendy et al. 2009, Wagner 2023

Age range: base of the Late/Upper Valanginian to the top of the Early/Lower Maastrichtian or 137.05000 to 66.00000 Ma

Collections (159 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Cretaceous143.1 - 66.0Bulgaria Protolamna sp. (276334)
Late/Upper Valanginian137.05 - 132.6Poland (Lodzkie) Protolamna sp. (64836)
Late/Upper Valanginian137.05 - 132.6Poland Protolamna sp. (213519)
Barremian125.77 - 121.4Japan (Gunma) Protolamna sp. (229065)
Early/Lower Barremian125.77 - 121.4Spain (Teruel) Protolamna sokolovi (36365 91420 214376)
Early/Lower Barremian125.77 - 121.4Germany Protolamna sarstedtensis (241486)
Late/Upper Barremian125.77 - 121.4France Protolamna sokolovi (240103 276341 276342 276343)
Barremian - Albian125.77 - 100.5Tunisia (Medinine) Protolamna sp., Selachii indet. (166013)
Early/Lower Aptian121.4 - 119.57United Kingdom (England) Protolamna sokolovi (241457)
Aptian121.4 - 113.2USA (Texas) Lamna sulcata (99154)

Youngest occurrences
Time interval Ma Country or state PBDB collection number
Late/Upper Campanian83.6 - 72.2USA (New Jersey) Cretodus borodini (14455) Plicatolamna borodini (32181) Protolamna borodini (221052)
Late/Upper Campanian83.6 - 72.2USA (New Mexico) Cretodus sp. (14472)
Late/Upper Campanian83.6 - 72.2USA (Delaware) Plicatolamna borodini (27570)
Late/Upper Campanian83.6 - 72.2Israel Cretodus sp. (214862)
Middle Campanian83.6 - 72.2USA (North Carolina) Protolamna borodini (128412)
Middle Campanian83.6 - 72.2France Protolamna borodini (61352 61353)
Middle Campanian - Late/Upper Campanian83.6 - 72.2USA (Montana) Protolamna sokolovi (177498)
Middle Campanian - Late/Upper Campanian83.6 - 72.2USA (Delaware) Plicatolamna borodini (126600)
Late/Upper Campanian - Early/Lower Maastrichtian83.6 - 66.0USA (New Jersey) Plicatolamna borodini (14504 213744 213745 213746)
Early/Lower Maastrichtian72.2 - 66.0USA (New Jersey) Plicatolamna borodini (213747)