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Trichasteropsis senfti

Asteroidea - Trichasteropsida - Trichasteropsiidae

Taxonomy
Trichasteropsis senfti was named by Eck (1879). It is not extant. Its type specimen is Holotype MB.E. 776, Museum für Naturkunde Berlin.

Synonymy list
YearName and author
1879Trichasteropsis senfti Eck p. 253 figs. pl. 4 fig. 4
2003Trichasteropsis senfti Blake and Hagdorn p. 42 figs. Fig. 3

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Asterozoa()
RankNameAuthor
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderForcipulatacea
orderTrichasteropsida
familyTrichasteropsiidae
genusTrichasteropsis()
speciessenfti

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
ReferenceDiagnosis
D. B. Blake and H. Hagdorn 2003Trichasteropsid with arms elongate and only gradually tapering. Arm tip rounded in larger (R greater than -50 mm) specimens but probably proportionately more pointed in smaller (to at least R -35 ram) individuals. Tips heavily armored, distal marginals weakly enlarged. Marginals abutted throughout the length of the arm, although ossicles tapered dorsally with partial intercalation of abactinals and accessories. Longest actinal row perhaps adjacent to the adambulacral series, other series somewhat irregular. Actinal spines flattened. Ambulacral column not compressed (adambulacrals and ambulacrals
considered plesiomorphic for crown group.
Measurements
No measurements are available
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: slow-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: limitedc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-02-28 15:35:10
Modified: 2010-02-09 06:02:08
Source: c = class, p = phylum
References: Aberhan 1992, Aberhan et al. 2004

Age range: base of the Anisian to the top of the Ladinian or 247.20000 to 237.00000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Anisian247.2 - 242.0Germany Trichasteropsis senfti (31996 59960)
Ladinian242.0 - 237.0Germany (Thuringia) Trichasteropsis senfti (59962)
Ladinian242.0 - 237.0Germany Trichasteropsis senfti (59927 59958 59959 59961)