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Trichaster

Ophiuroidea - Euryalida - Euryalidae

Taxonomy
Trichaster was named by Agassiz (1836). It is extant. It is the type genus of Trichasterinae.

It was assigned to Trichasterinae by Matsumoto (1915); and to Euryalidae by Spencer and Wright (1966), Jagt (2000) and O'Hara et al. (2018).

Synonymy list
YearName and author
1836Trichaster Agassiz
1915Trichaster Matsumoto p. 52
1966Trichaster Spencer and Wright p. U91
2000Trichaster Jagt p. 8
2018Trichaster O'Hara et al. p. 7

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Asterozoa()
RankNameAuthor
classOphiuroidea
suborderMyophiurina()
infraclassMetophiuridaMatsumoto 1913
superorderEuryophiurida
orderEuryalida
familyEuryalidae
genusTrichaster

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. Trichaster Agassiz 1836
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†Trichaster ornatus Rasmussen 1950
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Invalid names: Asteronyx granulosus Müller 1950 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinec
Locomotion: slow-movingc
Life habit: low-level epifaunalc
Diet: detritivorec
Diet 2: suspension feederc
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-02-29 11:30:09
Modified: 2010-02-12 01:58:57
Source: c = class, p = phylum
References: Aberhan 1992, Aberhan et al. 2004

Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma

Collections (13 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian83.5 - 70.6Belgium (Liege) T. sp., T. ornatus (32147)
Early/Lower Maastrichtian70.6 - 66.0Belgium (Liege) T. ornatus (32148 32158)
Early/Lower Maastrichtian70.6 - 66.0Germany (Mecklenburg-Vorpommern) T. sp., T. ornatus (32022)
Early/Lower Maastrichtian - Maastrichtian70.6 - 66.0Denmark T. sp., T. ornatus (32023)
Late/Upper Maastrichtian70.6 - 66.0Netherlands (Limburg) T. ornatus (32167)
Late/Upper Maastrichtian70.6 - 66.0Belgium (Liege) T. ornatus (32156 32157)
Late/Upper Maastrichtian70.6 - 66.0Netherlands T. ornatus (32161)
Late/Upper Maastrichtian - Maastrichtian70.6 - 66.0Netherlands T. ornatus (32162)
Late/Upper Maastrichtian - Danian70.6 - 61.6Netherlands (Limburg) T. ornatus (32169)
Late/Upper Maastrichtian - Danian70.6 - 61.6Poland Asteronyx ornatus (64008)
Late/Upper Maastrichtian - Danian70.6 - 61.6Netherlands T. sp., T. ornatus (32160)