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Migmaster angularis

Asteroidea - Migmasteridae

Taxonomy
Migmaster angularis was named by Blake et al. (2006). Its type specimen is Holotype MHI 1809, paratypes MHI 1806, MHI 1807, MHI 1808, a skeleton, and it is a 3D body fossil. Its type locality is Elvese near Göttingen, Asteroid, which is in a Pelsonian shallow subtidal limestone in the Jena Formation of Germany. It is the type species of Migmaster.

Synonymy list
YearName and author
2006Migmaster angularis Blake et al. p. 286 figs. Figs. 3A-F, H, 4A-C

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
RankNameAuthor
Asterozoa()
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
familyMigmasteridae
genusMigmaster
speciesangularis

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.

Migmaster angularis Blake et al. 2006
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Diagnosis
ReferenceDiagnosis
D. B. Blake et al. 2006Trichasteropsiid with ossicles of dorsal surface not differentiated in a manner that would indicate a vaulted profile in life. Arms triangular, straightsided; disk large. Abactinal ossicles (at least of smaller specimens) more or less paxilliform, carinals and primary circlet not clearly recognized. Marginals of smaller individuals
uniform, tabular, those of larger individual enlarged distally, becoming proportionately reduced proximally, but distal marginals not enlarged as to alter form of the arm. Actinal series alignment probably parallel to marginal series. Axillary or axillary-like ossicle present. Spines simple, pointed.
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 et al. 2004, Aberhan 1992

Age range: Pelsonian or 247.20000 to 242.00000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Pelsonian247.2 - 242.0Germany (Nordrhein-Westfalen) Migmaster angularis (59967)
Pelsonian247.2 - 242.0Germany (Niedersachsen) Migmaster angularis (type locality: 66894)