PBDB Taxon

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

Arnioceras rejectum

Cephalopoda - Ammonitida - Arietitidae

Taxonomy

Arnioceras rejectum was named by Fucini (1902). It is a 3D body fossil.

Sister species lacking formal opinion data

A. acuticarinatum, A. angusticostatum, A. bucklandi, A. crassicosta, A. densicosta, A. dimorphum, A. falcaries, A. hartmani, A. hartmanni, A. kridioides, A. nodulosum, A. oppeli, A. paucicostatum, A. repens, A. speciosurn, A. spirale

Synonymy list

Year	Name and author
1902	Arnioceras rejectum Fucini
2003	Arnioceras rejectum Meister and Friebe
2007	Arnioceras rejectum Geczy and Meister
2023	Arnioceras rejectum Zaitsev and Ippolitov p. 244 figs. Pl 6, figs 4,7,8,10,11

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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	Ammonoidea	()
order	Ammonitida
suborder	Ammonitina	Hyatt 1889
superfamily	Psiloceratoidea	(Hyatt 1867)
family	Arietitidae	Hyatt 1875
subfamily	Arietitinae	Hyatt 1875
genus	Arnioceras	Hyatt 1867
species	rejectum	Fucini 1902

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.

†Arnioceras rejectum Fucini 1902

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Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	3	8.14	7.50	9.00	8.00	0.764
shell diameter	3	35.1	33.0	39.0	33.5	3.33
shell inflation	3	20.9	19.0	23.0	21.0	2.00

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 Semicostatum to the top of the Obtusum or 196.50000 to 189.60000 Ma

Collections (9 total)

Time interval	Ma	Country or state	Original ID and collection number
Sinemurian - Pliensbachian	199.3 - 182.7	Austria	Arnioceras rejectum (218903)
Late/Upper Sinemurian	196.5 - 189.6	Austria	Arnioceras rejectum (196516)
Obtusum	196.5 - 189.6	Hungary	Arnioceras rejectum (78797)
Obtusum	196.5 - 189.6	Ukraine (Crimea)	Arnioceras rejectum (230733)
Obtusum	196.5 - 189.6	Hungary (Veszprém Megye)	Arnioceras rejectum (78282)
Obtusum - Raricostatum	196.5 - 189.6	Hungary (Veszprém Megye)	Arnioceras rejectum (78211 78410)
Late/Upper Sinemurian - Late/Upper Pliensbachian	196.5 - 183.0	Austria	Arnioceras rejectum (218910)
Semicostatum - Ibex	196.5 - 183.0	Hungary	Arnioceras rejectum (78688)