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Squalicorax pawpawensis

Chondrichthyes - Lamniformes - Anacoracidae

Taxonomy
Squalicorax pawpawensis was named by Siverson et al. (2007). Its type specimen is SMU 76312, a shell, and it is a 3D body fossil. Its type locality is SMU Loc. 263, Motorola site, which is in an Albian coastal claystone/sandstone in the Paw Paw Formation of Texas.

It was recombined as Palaeoanacorax pawpawensis by Underwood and Cumbaa (2010), Guinot et al. (2013).

Sister species lacking formal opinion data
S. bassani, S. lindstroemi, S. pristodontis
Entered
by M. Clapham on 2020-08-28; modified by M. Clapham on 2026-01-24

Synonymy list
YearName and author
2007Squalicorax pawpawensis Siverson et al. p. 945 figs. Pl 1, figs 1-26; text-fig 2A
2010Palaeoanacorax pawpawensis Underwood and Cumbaa p. 934 figs. Pl 8, figs 3-5; text-fig 5A-M
2013Palaeoanacorax pawpawensis Guinot et al. p. 625 figs. 13Y-F'
2016Squalicorax pawpawensis Bice and Shimada p. 178 figs. 4L-U
2018Squalicorax pawpawensis Siversson and Cook p. 93 figs. 7A-C
2022Squalicorax pawpawensis Allen and Shimada p. 5 fig. 3C

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
RankNameAuthor
infraclassElasmobranchii(Bonaparte 1838)
—Euselachii()
—NeoselachiiCompagno 1977
superorderGaleomorphiiCompagno 1973
orderLamniformesBerg 1958
familyAnacoracidaeCasier 1947
genusSqualicoraxWhitley 1939
speciespawpawensis

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.

†Squalicorax pawpawensis Siverson et al. 2007
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Diagnosis
No diagnoses are available
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: Wagner 2023, Hendy et al. 2009, Carroll 1988

Age range: base of the Late/Upper Albian to the top of the Late/Upper Santonian or 106.30000 to 83.60000 Ma

Collections (14 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Albian106.3 - 100.5USA (Texas) Squalicorax pawpawensis (type locality: 35294) Squalicorax volgensis (213307)
Early/Lower Cenomanian100.5 - 93.9United Kingdom (England) Palaeoanacorax pawpawensis (213567)
Middle Cenomanian100.5 - 93.9United Kingdom (England) Palaeoanacorax pawpawensis (213569 213570)
Middle Cenomanian100.5 - 93.9USA (Kansas) Squalicorax pawpawensis (277286)
Middle Cenomanian100.5 - 93.9Canada (Saskatchewan) Palaeoanacorax pawpawensis (22731)
Early/Lower Turonian93.9 - 89.8USA (Iowa) Squalicorax pawpawensis (213400)
Early/Lower Turonian93.9 - 89.8USA (Kansas) Squalicorax pawpawensis (213384)
Late/Upper Turonian93.9 - 89.8USA (Texas) Squalicorax volgensis (213299)
Middle Turonian93.9 - 89.8USA (Nebraska) Squalicorax pawpawensis (213389)
Middle Turonian93.9 - 89.8USA (Kansas) Squalicorax pawpawensis (213387 213390)
Middle Santonian - Late/Upper Santonian85.7 - 83.6USA (Kansas) Squalicorax pawpawensis (241665)