PBDB Taxon

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

Clypeus

Echinoidea - Clypeidae

Taxonomy

Clypeus was named by Leske (1778) [Sepkoski's age data: J Bajo J Kimm].

It was assigned to Clypeidae by Kier (1962), Kier (1966); and to Cassiduloida by Sepkoski (2002).

Species

C. agassizi, C. plotii, C. rostellus, C. wylliei

Species lacking formal opinion data

C. muelleri, C. ploti, C. sinuatus, C. williei, C. williei

Synonyms

Auloclypeus was named by Pomel (1883).

It was synonymized subjectively with Clypeus by Kier (1962).
Dactyloclypeus was named by Maccagno (1947).

It was synonymized subjectively with Clypeus by Kier (1962).
Echinoclypeus was named by De Blainville (1830).

It was synonymized subjectively with Clypeus by Kier (1962).

Synonymy list

Year	Name and author
1778	Clypeus Leske p. 93
1830	Echinoclypeus De Blainville
1883	Auloclypeus Pomel
1947	Dactyloclypeus Maccagno
1962	Clypeus Kier p. 30
1966	Clypeus Kier p. U499
2002	Clypeus Sepkoski

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
—	Ambulacraria
phylum	Echinodermata
subphylum	Eleutherozoa
—	Echinozoa	()
class	Echinoidea	()

Rank	Name	Author
subclass	Euechinoidea	Bronn 1860
superorder	Acroechinoidea	()
—	Carinacea
—	Irregularia	()
—	Microstomata
—	Neognathostomata
family	Clypeidae
genus	Clypeus

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. †Clypeus Leske 1778

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†Clypeus agassizi Wright 1851

†Clypeus plotii Leske 1778

†Clypeus rostellus Currie 1925

†Clypeus wylliei Currie 1925

Invalid names: Auloclypeus Pomel 1883 [synonym], Dactyloclypeus Maccagno 1947 [synonym], Echinoclypeus De Blainville 1830 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

high Mg calcitec

Ontogeny:

accretion, addition of partsp

Environment:

marinep

Locomotion:

actively mobilec

Life habit:

epifaunalc

Diet:

grazerc

Diet 2:

deposit feederc

Vision:

limitedc

Dispersal:

waterp

Dispersal 2:

planktonicp

Created:

2004-02-28 12:05:24

Modified:

2010-02-12 04:00:29

Source: c = class, p = phylum

References: Kiessling 2004, Aberhan 1992

Age range: base of the Bajocian to the top of the Oxfordian or 170.90000 to 154.80000 Ma

Collections (17 total)

Time interval	Ma	Country or state	Original ID and collection number
Middle Jurassic	174.7 - 161.5	United Kingdom (Gloucestershire)	C. sinuatus (204099)
Bajocian	170.9 - 168.2	Saudi Arabia	C. sp. (48078 48112)
Parkinsoni	170.9 - 168.2	United Kingdom (Gloucestershire)	C. sinuatus (196369)
Bajocian - Bathonian	170.9 - 165.3	Chile (Chañaral)	C. sp. (223618)
Bathonian - Bajocian	168.2 - 168.2	Kenya	C. rostellus (161804)
Bathonian - Bajocian	168.2 - 168.2	Somalia	C. rostellus (161481)
Bathonian	168.2 - 165.3	France	C. ploti (98246)
Bathonian	168.2 - 165.3	United Kingdom (England)	C. muelleri (36551)
Bathonian	168.2 - 165.3	Saudi Arabia	C. sp. (48400 48405)
Bathonian - Callovian	168.2 - 161.5	Somalia	C. williei (100377 100385)
Callovian	165.3 - 161.5	Somalia	C. williei (100380 100386)
Middle Oxfordian	161.5 - 154.8	United Kingdom (England)	C. sp. (4091)
Oxfordian	161.5 - 154.8	Ethiopia	C. williei (94495)