PBDB Taxon

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

Ectocentrites

Cephalopoda - Ammonoida - Lytoceratidae

Taxonomy

Ectocentrites was named by Canavari (1888) [Sepkoski's age data: J Hett-u J Sine-u]. It is not extant. Its type is Ammonites petersi.

It was assigned to Ammonoidea by Sepkoski (2002); and to Ectocentritinae by Wiedmann (1970), Meister and Friebe (2003), Geczy and Meister (2007), Blau et al. (2008), Hoffmann (2010).

Species

Ammonites altecinctus, E. altiformis, E. alutae, E. canavarii, E. hillebrandti, E. italicus, E. pacificus, E. thibaudi

Species lacking formal opinion data

E. canavari, E. dommerguesi, E. petersi

Synonyms

Ammonites altecinctus was named by Hauer (1866). Its type specimen is Babe s-Bolyai Geo. 13.304 and is a 3D body fossil.

It was recombined as Lytoceras altecinctum by Herbich (1878); it was recombined as Tragolytoceras altecinctum by Wiedmann (1970); it was considered a nomen dubium by Tomas and Pálfy (2007).
Cosmolytoceras was named by Spath (1924). It is not extant. Its type is Ammonites petersi.

It was synonymized objectively with Ectocentrites by Hoffmann (2015).

Synonymy list

Year	Name and author
1866	Ammonites altecinctus Hauer p. 192
1878	Lytoceras altecinctum Herbich
1888	Ectocentrites Canavari
1924	Cosmolytoceras Spath p. 189
1970	Tragolytoceras altecinctum Wiedmann p. 996 figs. Pl 9, fig 3; text-fig 30H
1970	Ectocentrites Wiedmann p. 1002
2002	Ectocentrites Sepkoski
2003	Ectocentrites Meister and Friebe
2007	Ectocentrites Geczy and Meister
2008	Ectocentrites Blau et al. p. 403
2010	Ectocentrites Hoffmann p. 12

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Cephalopoda	Cuvier 1797

Rank	Name	Author
subclass	Coleoidea	Bather 1888
order	Ammonoida	(Haeckel 1866)
order	Ammonitida	Haeckel 1866
suborder	Ammonitina	Hyatt 1889
superfamily	Lytoceratoidea	(Neumayr 1875)
family	Lytoceratidae	Neumayr 1875
subfamily	Ectocentritinae	Spath 1926
genus	Ectocentrites	Canavari 1888

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. †Ectocentrites Canavari 1888

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†Ectocentrites altiformis Bonarelli 1899

†Ectocentrites alutae Herbich 1878

†Ectocentrites canavarii Hauer 1879

†Ectocentrites hillebrandti Blau et al. 2008

†Ectocentrites italicus Meneghini 1882

†Ectocentrites pacificus Longridge et al. 2008

†Ectocentrites thibaudi Meister et al. 2010

Invalid names: Ammonites altecinctus Hauer 1866 [nomen dubium], Cosmolytoceras Spath 1924 [objective synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
height	9	11.2	6.00	15.4	12.0	2.99
diameter	9	28.7	16.0	38.0	29.0	6.87
inflation	9	9.40	5.40	14.0	9.00	2.55
shell diameter	5	85.3	44.8	133.0	90.8	32.5

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: base of the Hettangian to the top of the Sinemurian or 201.30000 to 190.80000 Ma

Collections (36 total)

Time interval	Ma	Country or state	Original ID and collection number
Rhaetian - Early/Lower Sinemurian	208.5 - 189.6	Austria	E. petersi (195482)
Early/Lower Jurassic	201.4 - 174.7	Indonesia (Timor)	E. italicus (205667)
Hettangian	201.3 - 199.3	Canada (Yukon)	E. sp. (34240)
Late/Upper Hettangian	201.3 - 196.5	Canada (British Columbia)	E. sp. (34142)
Liasicus	201.3 - 196.5	Canada (British Columbia)	E. pacificus (84736 84916 84917 84918 84919 84967 84973 84979 84980)
Middle Hettangian	201.3 - 196.5	New Caledonia	E. sp. (198404) E. thibaudi (197686 198405 198406)
Hettangian - Sinemurian	201.3 - 190.8	Austria	E. petersi (38057)
Hettangian - Sinemurian	201.3 - 190.8	Romania	E. petersi, E. alutae (219456)
Late/Upper Hettangian - Early/Lower Sinemurian	201.3 - 189.6	New Caledonia	E. thibaudi (198411)
Middle Hettangian - Early/Lower Sinemurian	201.3 - 189.6	New Caledonia	E. thibaudi (198416)
Sinemurian	199.3 - 190.8	Austria	E. sp. (218937)
Bucklandi	196.5 - 189.6	Italy	E. sp. (90673)
Early/Lower Sinemurian	196.5 - 189.6	Hungary (Veszprém Megye)	E. altiformis (78207)
Early/Lower Sinemurian	196.5 - 189.6	Slovakia	E. altiformis (195484)
Early/Lower Sinemurian - Late/Upper Sinemurian	196.5 - 189.6	Mexico (Hidalgo)	E. dommerguesi, E. sp. (208369) E. leslei (208370)
Late/Upper Sinemurian	196.5 - 189.6	Mexico (Hidalgo)	E. sp. (208372 208373)
Obtusum	196.5 - 189.6	Hungary	E. altiformis (78797)
Obtusum	196.5 - 189.6	Hungary (Veszprém Megye)	E. altiformis (81579)
Obtusum - Raricostatum	196.5 - 189.6	Hungary (Veszprém Megye)	E. sp., E. altiformis (78410)
Oxynotum - Raricostatum	196.5 - 189.6	Hungary	E. canavari, E. altiformis (78795)
Oxynotum - Raricostatum	196.5 - 189.6	Hungary (Veszprém Megye)	E. altiformis, E. italicus (78407) E. italicus (78408)
Raricostatum	196.5 - 189.6	Mexico (Puebla)	E. hillebrandti (138326)