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Arbia aldrichi

Echinoidea - Arbacioida - Arbaciidae

Taxonomy
Coelopleurus aldrichi was named by Clark and Twitchell (1915) [attributed to Clark only]. Its type specimen is USNM 559494, a test, and it is a 3D body fossil. Its type locality is Perdue Hill [Suwannee Fm], which is in an Oligocene marine marl in the Byram Marl Formation of Alabama.

It was recombined as Arbacia aldrichi by Cooke (1941); it was recombined as Arbia aldrichi by Cooke (1959) and Kier (1997).

Synonymy list
YearName and author
1915Coelopleurus aldrichi Clark and Twitchell p. 158 figs. pl. 73, figs. 6a-b, fa-c
1941Arbacia aldrichi Cooke p. 11
1959Arbia aldrichi Cooke p. 21
1997Arbia aldrichi Kier p. 4

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEchinozoa
RankNameAuthor
classEchinoidea()
subclassEuechinoideaBronn 1860
Echinacea()
orderArbacioida()
familyArbaciidae()
genusArbiaCooke 1948
speciesaldrichi()

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.

Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: actively mobilef
Life habit: epifaunalf
Diet: grazerf
Vision: limitedc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2009-09-10 13:28:35
Modified: 2009-09-10 15:29:25
Source: f = family, c = class, p = phylum
References: Smith 2009, Kiessling 2004, Aberhan 1992

Age range: base of the Early/Lower Oligocene to the top of the Chattian or 33.90000 to 23.03000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Oligocene33.9 - 28.4USA (Alabama) Coelopleurus aldrichi (143392)
Rupelian33.9 - 28.1USA (Mississippi) Arbia aldrichi (155937)
Chattian28.1 - 23.03USA (North Carolina) Arbia aldrichi (71650)