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Thomasites rollandi

Cephalopoda - Ammonitida - Pseudotissotiidae

Taxonomy
Pachydiscus rollandi was named by Peron (1890). It is not a trace fossil.

It was recombined as Thomasites rollandi by Kennedy et al. (1987), Kennedy and Simmons (1991), Chancellor et al. (1994), Ayoub-Hannaa and Fürsich (2012) and Zaoui et al. (2024).

Synonyms
Synonymy list
YearName and author
1890Pachydiscus rollandi Peron p. 25 figs. pl. 17, figs. 1-3
1907Thomasites jordani Pervinquiere
1907Thomasites mesli Pervinquiere
1928Thomasites egyptiacus Douville
1928Thomasites lefevrei Douville
1987Thomasites rollandi Kennedy et al. p. 61
1991Thomasites rollandi Kennedy and Simmons p. 142
1994Thomasites rollandi Chancellor et al. p. 75
2012Thomasites rollandi Ayoub-Hannaa and Fürsich p. 73 fig. 14
2024Thomasites rollandi Zaoui et al. p. 7 fig. 5B

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyAcanthoceratoidea(de Grossouvre 1894)
familyPseudotissotiidae(Hyatt 1903)
genusThomasitesPervinquiére 1907
speciesrollandi(Peron 1890)

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.

†Thomasites rollandi Peron 1890
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Invalid names: Thomasites egyptiacus Douville 1928 [synonym], Thomasites jordani Pervinquiere 1907 [synonym], Thomasites lefevrei Douville 1928 [synonym], Thomasites mesli Pervinquiere 1907 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height4045.120.065.052.012.2
shell diameter4086.940.0126.0101.026.7
shell inflation4010.75.0020.011.03.92

Composition: aragoniteo
Environment: marinec
Locomotion: fast-movingo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:27:03
Modified: 2009-10-08 14:14:55
Source: o = order, c = class
References: Kiessling 2003, Kiessling 2004

Age range: base of the Middle Turonian to the top of the Late/Upper Turonian or 93.50000 to 89.30000 Ma

Collections (18 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Turonian93.5 - 89.3Algeria Thomasites rollandi (236201 236202)
Early/Lower Turonian93.5 - 89.3Tunisia Thomasites rollandi (88843 88846 88850 88853 88854 161141 161143 161150 161151)
Early/Lower Turonian93.5 - 89.3France Thomasites rollandi, Thomasites jordani (82852)
Early/Lower Turonian93.5 - 89.3Egypt Thomasites rollandi (114815 114897 140245 140587 140621)
Middle Turonian - Late/Upper Turonian93.5 - 89.3Egypt Thomasites rollandi (114904)