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Hygrosomatinae

Echinoidea - Echinothurioida - Echinothuriidae

Taxonomy
Hygrosomatinae was named by Smith and Wright (1990). It is extant.

It was assigned to Echinothuriidae by Smith and Wright (1990) and Kroh and Smith (2010).

Subtaxa
Hygrosoma

Synonymy list
YearName and author
1990Hygrosomatinae Smith and Wright
2010Hygrosomatinae Kroh and Smith p. 170

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
RankNameAuthor
—Echinozoa()
classEchinoidea()
subclassEuechinoideaBronn 1860
orderEchinothurioida()
familyEchinothuriidae
subfamilyHygrosomatinae
subfamilyHygrosomatinae

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.

Subfm. Hygrosomatinae Smith and Wright 1990
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G. Hygrosoma Hygrosoma 1903
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: carnivoreo
Vision: limitedc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-02-29 09:26:37
Modified: 2009-10-08 15:35:10
Source: o = order, c = class, p = phylum
References: Aberhan 1992, Kiessling 2004, Aberhan et al. 2004

Age range

Maximum range based only on fossils: Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma
Minimum age of oldest fossil (stem group age): 66.0 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Early/Lower Maastrichtian70.6 - 66.0Germany (Mecklenburg-Vorpommern) Hygrosoma bruennichi (32022)