PBDB Taxon

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

Aulacostephanus (Aulacostephanoides)

Cephalopoda - Ammonitida - Aulacostephanidae

Taxonomy

Aulacostephanus (Aulacostephanoides) was named by Schindewolf (1925). Its type is Ammonites desmonotus.

It was assigned to Aulacostephanus by Schindewolf (1925), Mesezhnikov (1984).

Subtaxa

Aulacostephanus (Aulacostephanoides) desmonotus, Aulacostephanus (Aulacostephanoides) sosvaensis

Species lacking formal opinion data

Aulacostephanus circumplicatus, Aulacostephanus subundorae

Synonymy list

Year	Name and author
1925	Aulacostephanus (Aulacostephanoides) Schindewolf
1984	Aulacostephanus (Aulacostephanoides) Mesezhnikov p. 124

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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	Haeckel 1866
suborder	Ammonitina	Hyatt 1889
superfamily	Perisphinctoidea	(Steinman 1890)
family	Aulacostephanidae	Spath 1924
genus	Aulacostephanus
subgenus	Aulacostephanoides	Schindewolf 1925

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.

Subg. †Aulacostephanus (Aulacostephanoides) Schindewolf 1925

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†Aulacostephanus (Aulacostephanoides) desmonotus Oppel 1863

†Aulacostephanus (Aulacostephanoides) sosvaensis Sasonov 1960

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	6	69.1	41.7	135.5	71.0	35.6
shell diameter	6	181.2	107.0	430.0	182.5	119.4
shell inflation	6	67.7	36.3	200.0	67.0	61.0

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 Early/Lower Kimmeridgian to the top of the Late/Upper Kimmeridgian or 154.80000 to 149.20000 Ma

Collections (6 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Kimmeridgian	154.8 - 152.21	Russian Federation	Aulacostephanoides sp., Aulacostephanoides eulepidus, Aulacostephanoides desmonotus (190892)
Kimmeridgian - Early/Lower Kimmeridgian	154.8 - 152.21	Russian Federation	Aulacostephanoides sp. (191017 191018)
Late/Upper Kimmeridgian	152.21 - 149.2	Russian Federation (Khanty-Mansi Autonomous Okrug)	Aulacostephanus sosvaensis (58777 58778 58779)