PBDB Taxon

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

Clypeoceras

Cephalopoda - Ceratitida - Proptychitidae

Taxonomy

Clypeoceras was named by Smith (1913) [Sepkoski's age data: Tr Indu-u Sepkoski's reference number: 302,1066]. Its type is Aspidites superbus.

It was assigned to Paranoritidae by Spath (1934); to Proptychitinae by Tozer (1981); to Ceratitida by Sepkoski (2002); to Clypeoceratidae by Shigeta and Zakharov (2009); and to Proptychitidae by Brühwiler and Bucher (2012).

Species

Aspidites arenosus, Aspidites dentosus, Aspidites magnumbilicatus, Aspidites meridianus, C. excentricum, C. largisellatum, C. superbum, C. timorense

Synonyms

Aspidites was named by Waagen (1895).

It was reranked as Meekoceras (Aspidites) by Diener (1897); it was replaced with Clypeoceras by Smith (1913) and Spath (1934).

It was assigned to Meekoceras by Diener (1897).
Aspiditella was named by Strand (1929).

It was synonymized subjectively with Clypeoceras by Spath (1934).

Synonymy list

Year	Name and author
1895	Aspidites Waagen p. 215
1897	Meekoceras (Aspidites) Diener
1913	Clypeoceras Smith p. 645
1929	Aspiditella Strand
1934	Clypeoceras Spath
1981	Clypeoceras Tozer p. 89
2002	Clypeoceras Sepkoski
2009	Clypeoceras Shigeta and Zakharov p. 110
2012	Clypeoceras Brühwiler and Bucher

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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	Ceratitida	Hyatt 1884
suborder	Meekoceratina
superfamily	Meekoceratoidea	Waagen 1895
family	Proptychitidae	Waagen 1895
genus	Clypeoceras

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. †Clypeoceras Smith 1913

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†Aspidites superbus praecursor Frech 1905

†Clypeoceras excentricum Spath 1934

†Clypeoceras largisellatum Spath 1934

†Clypeoceras superbum Waagen 1895

†Clypeoceras timorense Wanner 1911

Invalid names: Aspiditella Strand 1929 [synonym], Aspidites Waagen 1895 [replaced]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	27	26.7	7.90	140.0	25.6	31.3
shell diameter	27	50.0	14.2	235.0	50.0	53.6
shell inflation	27	5.16	1.90	21.0	4.90	5.85

Composition:

aragoniteo

Environment:

marinec

Locomotion:

actively mobileo

Life habit:

nektonico

Diet:

carnivoreo

Vision:

well-developedc

Created:

2005-01-28 02:33:06

Modified:

2005-10-06 16:36:47

Source: o = order, c = class

References: Kiessling 2004, Kiessling 2003

Age range: Spathian or 251.30000 to 247.20000 Ma

Collections (21 total)

Time interval	Ma	Country or state	Original ID and collection number
Smithian	251.3 - 247.2	Afghanistan	C. sp. (41671)
Smithian	251.3 - 247.2	Madagascar	Aspidites sp. (119512)
Smithian	251.3 - 247.2	Afghanistan (Pakhtia)	C. yudishthira (44119)
Smithian	251.3 - 247.2	Pakistan	Aspidites arenosus, Aspidites magnumbilicatus (143622) Aspidites dentosus (143823) Aspidites superbus (143829) C. sp. (102326) C. superbum (139067 139140)
Smithian	251.3 - 247.2	Indonesia	Aspidites sp., Aspidites meridianus (204267) Meekoceras timorense (204263)
Smithian	251.3 - 247.2	Indonesia (Timor)	Aspidites meridianus (205641) Meekoceras timorense (204266)
Smithian	251.3 - 247.2	Russian Federation	C. sp., C. timorense (168039) C. timorense (90220 90221 90222)
Smithian	251.3 - 247.2	China (Gunagxi)	C. ensanuforme (44014)
Spathian	251.3 - 247.2	India (Himachal Pradesh)	Meekoceras superbus (210997)
Dienerian	250.5 - 251.2	Pakistan	C. largisellatum (215004)
Dienerian	250.5 - 251.2	India (Kashmir)	C. sp. (115376)