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Rachiosoma hondoensis

Echinoidea - Phymosomatidae

Taxonomy
Rachiosoma hondoensis was named by Cooke (1953). Its type specimen is USNM 108371 and is a 3D body fossil. Its type locality is USGS 7686, Hondo Creek, which is in a Maastrichtian estuary/bay sandstone in the Escondido Formation of Texas.

Sister species lacking formal opinion data

Synonymy list
YearName and author
1953Rachiosoma hondoensis Cooke p. 8 figs. Pl 3, figs 4,5

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
Echinozoa()
classEchinoidea()
RankNameAuthor
subclassEuechinoideaBronn 1860
superorderAcroechinoidea()
Carinacea
Calycina(Gregory 1900)
suborderPhymosomatoida()
familyPhymosomatidae
genusRachiosoma
specieshondoensis

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.

Rachiosoma hondoensis Cooke 1953
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calcitesubo
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: slow-movingsubo
Life habit: low-level epifaunalsubo
Diet: omnivoresubo
Vision: limitedc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-02-29 10:30:22
Modified: 2009-12-13 03:47:39
Source: subo = suborder, c = class, p = phylum
References: Kiessling 2004, Aberhan 1992, Aberhan et al. 2004

Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Maastrichtian72.2 - 66.0USA (Texas) Rachiosoma hondoensis (type locality: 4536)