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Palaechinus

Echinoidea - Palaechinoidea - Palaechinidae

Taxonomy
Palaechinus is a genus. It is not extant. It is the type genus of Palaechinidae.

It was assigned to Palaechinidae by Kier (1966); and to Echinocystitoida by Sepkoski (2002).

Synonymy list
YearName and author
1966Palaechinus Kier p. U309
2002Palaechinus Sepkoski

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
RankNameAuthor
Echinozoa()
classEchinoidea()
subclassPerischoechinoidea()
superorderEognathostomataSmith 1984
orderPalaechinoidea()
familyPalaechinidae
genusPalaechinus

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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: slow-movingo
Life habit: low-level epifaunalo
Diet: grazero
Vision: limitedc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2009-10-08 14:05:00
Modified: 2009-12-13 03:47:17
Source: o = order, c = class, p = phylum
References: Kiessling 2004, Hendy et al. 2009, Aberhan 1992

Age range: Holkerian or 346.70000 to 340.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Holkerian346.7 - 340.0United Kingdom (England) P. sp. (41284)