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Meoma

Echinoidea - Spatangoida - Brissidae

Taxonomy
Meoma was named by Gray (1851) [Sepkoski's age data: T Eo-m-l R Sepkoski's reference number: 343]. It is extant.

It was assigned to Spatangidae by Grant and Hertlein (1938) and Cooke (1942); to Brissidae by Fischer (1966), Henderson (1975) and Kier (1984); and to Spatangoida by Sepkoski (2002).

Synonymy list
YearName and author
1851Meoma Gray
1938Meoma Grant and Hertlein p. 130
1942Meoma Cooke p. 47
1966Meoma Fischer p. U592
1975Meoma Henderson p. 42
1984Meoma Kier p. 118
2002Meoma Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Echinozoa()
classEchinoidea()
RankNameAuthor
subclassEuechinoideaBronn 1860
superorderAcroechinoidea()
—Carinacea
—Irregularia()
—Atelostomata
orderSpatangoida
suborderBrissidina
familyBrissidae
genusMeomaGray 1851

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. Meoma Gray 1851
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Subg. Meoma (Schizobrissus) Pomel 1869
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†Schizobrissus antillarum Cotteau 1875
†Schizobrissus clevei Cotteau 1875
Schizobrissus cruciatus Agassiz and Desor 1847
†Schizobrissus jacksoni Lambert 1926
†Schizobrissus kewi Durham 1961
Invalid names: Peripneustes Cotteau 1875 [synonym]
†Meoma antiqua Arnold and Clark 1927
†Meoma grandis Gray 1852
†Meoma tuberculata Hutton 1873
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Invalid names: Meoma decipiens Tate 1891 [synonym]
†Meoma ventricosa Lamarck 1816
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calciteo
Ontogeny: accretion, addition of partsp
Environment: marineo
Locomotion: slow-movingo
Life habit: shallow infaunalo
Diet: deposit feedero
Diet 2: detritivoreo
Vision: limitedc
Dispersal: watero
Dispersal 2: planktonico
Created: 2004-02-28 12:18:10
Modified: 2009-10-08 16:32:56
Source: o = order, c = class, p = phylum
References: Kiessling 2004, Aberhan 1992

Age range

Maximum range based only on fossils: base of the Eocene to the top of the Late/Upper Pleistocene or 56.00000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Eocene56.0 - 33.9Cuba Schizobrissus jacksoni (91162)
Early/Lower Oligocene33.9 - 28.4Australia (South Australia) M. tuberculata (90085)
Early/Lower Miocene - Late/Upper Miocene23.03 - 5.333Costa Rica Schizobrissus kewi (92098)
Early/Lower Pliocene5.333 - 3.6Mexico (Baja California Sur) M. sp. (43847)
Zanclean5.333 - 3.6Portugal Schizobrissus sp. (152330)
Pliocene5.333 - 2.588Mexico (Baja California Sur) M. sp. (96581 96583)
Late/Upper Pleistocene0.129 - 0.0117Mexico (Quintana Roo) M. sp. (82820)