PBDB Taxon

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Prorasenia

Cephalopoda - Ammonitida - Aulacostephanidae

Taxonomy

Prorasenia was named as a genus. It is not extant.

It was reranked as Rasenia (Prorasenia) by Geyer (1961).

It was assigned to Rasenia by Geyer (1961); to Aulacostephaninae by Mesezhnikov (1984); to Ammonoidea by Sepkoski (2002); and to Aulacostephanidae by Wright (2010).

Species

P. bowerbanki, P. hardyi, P. heeri (syn. Ammonites (Perisphinctes) repastinatus), P. quenstedti, Rasenia (Prorasenia) stephanoides

Synonyms

Desmosphinctes is a genus.

It was synonymized subjectively with Prorasenia by Arkell et al. (1957).

It was assigned to Ammonoidea by Hantzpergue et al. (1998).

Synonymy list

Year	Name and author
1961	Rasenia (Prorasenia) Geyer p. 106
1984	Prorasenia Mesezhnikov p. 96
1998	Desmosphinctes Hantzpergue et al. p. 637
2002	Prorasenia Sepkoski
2010	Prorasenia Wright p. 43

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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	Perisphinctoidea	(Steinman 1890)
family	Aulacostephanidae	Spath 1924
genus	Prorasenia

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. †Prorasenia

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†Prorasenia bowerbanki Spath 1935

†Prorasenia hardyi Spath 1935

†Prorasenia heeri Moesch 1867

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Invalid names: Ammonites (Perisphinctes) repastinatus Loriol 1878 [synonym]

†Prorasenia quenstedti Schindewolf 1925

†Rasenia (Prorasenia) stephanoides Oppel 1863

Invalid names: Desmosphinctes [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	11	11.0	8.40	15.0	10.5	2.53
shell diameter	11	33.4	26.0	41.0	34.0	5.44
shell inflation	11	14.1	8.90	18.5	13.5	2.86

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: Kimmeridgian or 157.30000 to 152.10000 Ma

Collections (17 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Oxfordian	161.2 - 155.7	Germany	P. sp. 1, P. sp. 2, P. sp. 3 (167935)
Late/Upper Oxfordian	161.2 - 155.7	United Kingdom (Dorset)	P. sp. (163981)
Kimmeridgian	157.3 - 152.1	Russian Federation	P. sp. (190538 190540 190558 190564 190572)
Early/Lower Kimmeridgian	155.7 - 150.8	United Kingdom (England)	P. bowerbanki (163982)
Early/Lower Kimmeridgian	155.7 - 150.8	Russian Federation (Siberia)	P. bowerbanki (58775) P. bowerbanki, P. hardyi (58774)
Early/Lower Kimmeridgian	155.7 - 150.8	Switzerland (Jura)	P. sp. (185662)
Early/Lower Kimmeridgian	155.7 - 150.8	United Kingdom (Dorset)	P. bowerbanki (163983) P. hardyi (163956 163959)
Early/Lower Kimmeridgian	155.7 - 150.8	Russian Federation (Khanty-Mansi Autonomous Okrug)	P. bowerbanki, P. hardyi, P. heeri (164299) P. hardyi, P. quenstedti (164308)
Early/Lower Kimmeridgian	155.7 - 150.8	Russian Federation	Desmosphinctes mniovnikensis (58837)