PBDB Taxon

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

Dipoloceras (Rhytidoceras)

Cephalopoda - Ammonitida - Mojsisovicsiidae

Taxonomy

Dipoloceras (Rhytidoceras) was named by Van Hoepen (1931). Its type is Rhytidoceras jovellanum.

It was assigned to Dipoloceras by van Hoepen (1931) and Bulot et al. (2005).

Subtaxa

Dipoloceras (Rhytidoceras) elegans (syn. Drepanoceras undatum, Dipoloceras (Rhytidoceras) trifurcatum, Drepanoceras rudis)

Synonyms

Diplasioceras is a genus. It is not extant.

It was synonymized subjectively with Rhytidoceras by Wright et al. (1996).

It was assigned to Ammonoidea by Sepkoski (2002).

Synonymy list

Year	Name and author
1931	Dipoloceras (Rhytidoceras) Van Hoepen p. 42
1931	Dipoloceras (Rhytidoceras) van Hoepen
2002	Diplasioceras Sepkoski
2005	Dipoloceras (Rhytidoceras) Bulot et al.

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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	Acanthoceratoidea	(de Grossouvre 1894)
family	Mojsisovicsiidae	Hyatt 1903
subfamily	Mojsisovicziinae	Hyatt 1903
genus	Dipoloceras
subgenus	Rhytidoceras

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. †Dipoloceras (Rhytidoceras) Van Hoepen 1931

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†Dipoloceras (Rhytidoceras) elegans van Hoepen 1931

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Invalid names: Dipoloceras (Rhytidoceras) trifurcatum Collignon 1951 [synonym], Drepanoceras rudis van Hoepen 1931 [synonym], Drepanoceras undatum van Hoepen 1941 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	2	31.6	20.0	50.0	35.0	21.2
shell diameter	2	86.9	47.2	160.0	103.6	79.8
shell inflation	2	31.3	14.6	67.0	40.8	37.1

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 Middle Albian to the top of the Albian or 109.00000 to 100.50000 Ma

Collections (6 total)

Time interval	Ma	Country or state	Original ID and collection number
Albian	113.0 - 100.5	Madagascar	Dipoloceras trifurcatum (98245) Rhytidoceras elegans, Rhytidoceras trifurcatum (98250)
Middle Albian	109.0 - 105.3	Ecuador	Dipoloceras elegans (88522)
Late/Upper Albian	105.3 - 99.6	Argentina (Santa Cruz)	Dipoloceras elegans (74299)
Late/Upper Albian	105.3 - 99.6	Madagascar	Dipoloceras trifurcatum (98251)
Late/Upper Albian	105.3 - 99.6	Mozambique	Prohysteroceras elegans (174617)