PBDB Taxon

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

Thomasites

Cephalopoda - Ammonitida - Pseudotissotiidae

Taxonomy

Thomasites was named by Pervinquiére (1907) [Sepkoski's age data: K Ceno-u K Turo-l Sepkoski's reference number: 716].

It was assigned to Pseudotissotiinae by Kennedy et al. (1987); to Vascoceratidae by Reyment (1954), Benavides-Caceres (1956) and Zaborski (1987); to Vascoceratinae by Meister (1989); to Pseudotissotinae by Kennedy and Simmons (1991), Meister et al. (1992) and Meister et al. (1994); to Pseudotissotiinae by Chancellor et al. (1994); and to Ammonoidea by Sepkoski (2002).

Species

T. adkinsi, T. fischeri, T. gongilensis (syn. Gombeoceras subtenue), T. koulabicus, T. rollandi (syn. T. egyptiacus, T. jordani, T. lefevrei, T. mesli), T. wallsi

Synonyms

Gombeoceras was named by Reyment (1954). Its type is Vascoceras gongilensis.

It was synonymized subjectively with Thomasites by Kennedy et al. (1987), Meister (1989) and Chancellor et al. (1994).

It was assigned to Vascoceratidae by Reyment (1954).

Synonymy list

Year	Name and author
1907	Thomasites Pervinquiére
1954	Gombeoceras Reyment p. 150
1954	Thomasites Reyment p. 256
1956	Thomasites Benavides-Caceres p. 471
1987	Thomasites Kennedy et al. p. 61
1987	Thomasites Zaborski p. 47
1989	Thomasites Meister p. 38
1991	Thomasites Kennedy and Simmons p. 142
1992	Thomasites Meister et al. p. 78
1994	Thomasites Chancellor et al. p. 72
1994	Thomasites Meister et al. p. 213
2002	Thomasites Sepkoski

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca

Rank	Name	Author
class	Cephalopoda	Cuvier 1797
subclass	Ammonoidea	()
order	Ammonitida
suborder	Ammonitina	Hyatt 1889
superfamily	Acanthoceratoidea	(de Grossouvre 1894)
family	Pseudotissotiidae	(Hyatt 1903)
genus	Thomasites	Pervinquiére 1907

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.

G. †Thomasites Pervinquiére 1907

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†Gombeoceras gongilense compressum Barber 1957

†Thomasites adkinsi Kummel and Decker 1954

†Thomasites fischeri Benavides-Caceres 1956

†Thomasites gongilensis Woods 1911

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†Gombeoceras gongilense costatum Barber 1957

†Gombeoceras gongilense crassicostatum Barber 1957

†Gombeoceras gongilense inflatum Barber 1957

†Gombeoceras gongilense lautum Barber 1957

†Gombeoceras gongilense tectiforme Barber 1957

Invalid names: Gombeoceras subtenue Reyment 1954 [synonym]

†Thomasites koulabicus Kler 1909

†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]

†Thomasites wallsi Reyment 1954

Invalid names: Gombeoceras Reyment 1954 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	45	43.0	14.0	65.0	52.0	13.2
shell diameter	45	84.5	40.0	126.0	93.0	27.0
shell inflation	45	10.9	5.00	20.0	11.0	3.94

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 2004, Kiessling 2003

Age range: Turonian or 93.90000 to 89.80000 Ma

Collections (58 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Cenomanian	99.6 - 93.5	Brazil	Gombeoceras gongilense (140840)
Late/Upper Cenomanian	99.6 - 93.5	Egypt	T. sp. (141573)
Late/Upper Cenomanian	99.6 - 93.5	USA (Arizona)	T. gongilensis (55890)
Late/Upper Cenomanian - Early/Lower Turonian	99.6 - 89.3	Nigeria	Gombeoceras koulabicum, Gombeoceras subtenue, Pseudotissotia wallsi, Gombeoceras gongilense (82779)
Turonian	93.9 - 89.8	Afghanistan (Takhar)	T. sp. (78079)
Early/Lower Turonian	93.5 - 89.3	Niger	T. sp. (175491) T. wallsi (175490)
Early/Lower Turonian	93.5 - 89.3	France	T. rollandi, T. jordani (82852)
Early/Lower Turonian	93.5 - 89.3	Mexico	Bauchioceras adkinsi (73576)
Early/Lower Turonian	93.5 - 89.3	Egypt	T. rollandi (114815 114897 140245 140587 140621)
Early/Lower Turonian	93.5 - 89.3	Nigeria	Bauchioceras wallsi (210211 210212) Gombeoceras gongilense (83009 83012 83025 210099 210100) Gombeoceras gongilense, Gombeoceras gongilense (210109) Gombeoceras gongilense, Gombeoceras gongilense, Gombeoceras gongilense (210107) Gombeoceras sp. (82781) Gombeoceras subtenue (210168) Pseudotissotia wallsi (175525 175531 209704 210104) Pseudotissotia wallsi, Gombeoceras gongilense (83008 83010 83021 83023 83026) T. gongilensis (175522 175524) T. gongilensis, Wrightoceras wallsi, T. koulabicus (69518) Vascoceras gongilensis (117606)
Early/Lower Turonian	93.5 - 89.3	Algeria	T. rollandi (236201 236202)
Early/Lower Turonian	93.5 - 89.3	Peru	T. fischeri (88199)
Early/Lower Turonian	93.5 - 89.3	Brazil	T. sp. (140888)
Early/Lower Turonian	93.5 - 89.3	USSR	Gombeoceras sp. (3803) T. globosotuberculatus, T. jourdani, T. inflatus, Gombeoceras koulabicum, Gombeoceras kleri (3801)
Early/Lower Turonian	93.5 - 89.3	Tunisia	T. rollandi (88843 88846 88850 88853 88854 161141 161143 161150) T. sp., T. rollandi (161151)
Early/Lower Turonian	93.5 - 89.3	USA (Texas)	T. adkinsi (4898 80991)
Early/Lower Turonian	93.5 - 89.3	Oman	T. gongilensis (82360)
Middle Turonian	93.5 - 89.3	USSR	Gombeoceras kanicum (3808)
Middle Turonian - Late/Upper Turonian	93.5 - 89.3	Egypt	T. rollandi (114904)