PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Yabeiceras

Cephalopoda - Ammonitida - Collignoniceratidae

Taxonomy

Yabeiceras was named by Tokunaga and Shimizu (1926) [Sepkoski's age data: K Coni]. Its type is Yabeiceras orientale.

It was assigned to Barroisiceratinae by Kennedy and Wright (1983); and to Ammonoidea by Sepkoski (2002).

Species

Y. ankinatsyense, Y. cobbani, Y. costatum, Y. crassiornatum, Y. manasoaense, Y. orientale (type species), Y. transiens

Synonymy list

Year	Name and author
1926	Yabeiceras Tokunaga and Shimizu p. 20
1983	Yabeiceras Kennedy and Wright p. 293
2002	Yabeiceras Sepkoski

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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	Acanthoceratoidea	(de Grossouvre 1894)
family	Collignoniceratidae	Wright and Wright 1951
subfamily	Barroisiceratinae	Basse 1947
genus	Yabeiceras	Tokunaga and Shimizu 1926

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. †Yabeiceras Tokunaga and Shimizu 1926

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†Yabeiceras ankinatsyense Collignon 1965

†Yabeiceras cobbani Kennedy and Wright 1983

†Yabeiceras costatum Collignon 1965

†Yabeiceras crassiornatum Kennedy and Wright 1983

†Yabeiceras manasoaense Collignon 1965

†Yabeiceras orientale Tokunaga and Shimizu 1926

†Yabeiceras transiens Kennedy and Wright 1983

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	9	24.9	12.8	44.0	26.0	9.47
shell diameter	9	78.9	34.2	137.0	83.9	30.7
shell inflation	9	32.9	8.20	61.7	31.6	16.2

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: Early/Lower Coniacian or 89.80000 to 85.70000 Ma

Collections (2 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Coniacian	89.8 - 85.7	South Africa	Y. orientale, Y. ankinatsyense (82456) Y. sp., Y. orientale, Y. transiens, Y. costatum, Y. manasoaense, Y. crassiornatum, Y. cobbani (82457)