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Forcipulatacea

Asteroidea

Taxonomy
Forcipulatacea was named by Blake (1987). It is extant. It was considered monophyletic by Blake and Hagdorn (2003).

It was assigned to Asteroidea by Blake (1989); to Neoasteroidea by Villier et al. (2009); and to Neoasteroidea by Blake and Hagdorn (2003) and Blake et al. (2017).

Synonymy list
YearName and author
1987Forcipulatacea Blake
1989Forcipulatacea Blake p. 213
2003Forcipulatacea Blake and Hagdorn p. 35
2009Forcipulatacea Villier et al. p. 390
2017Forcipulatacea Blake et al. p. 324

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

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.

Superor. Forcipulatacea Blake 1987
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Or. †Trichasteropsida Blake 1987
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Fm. †Trichasteropsiidae Blake and Hagdorn 2003
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G. †Berckhemeraster Blake and Hagdorn 2003
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†Berckhemeraster charistikos Blake and Hagdorn 2003
G. †Trichasteropsis Eck 1879
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†Trichasteropsis bielertorum Blake and Hagdorn 2003
†Trichasteropsis weissmanni von Münster 1843
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Invalid names: Asterias cilicia Quenstedt 1852 [synonym], Asterias obtusa Goldfuss 1833 [synonym], Trichasteropsis hippeleini Rothe 1959 [synonym]
Or. Zorocallida Downey 1970
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G. †Protothyraster Hess 1970
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†Protothyraster priscus de Loriol 1874
G. †Terminaster Hess 1974
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†Terminaster cancriformis Quenstedt 1876
Fm. †Terminasteridae Gale 2011
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G. †Alkaidia Blake and Reid 1998
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†Alkaidia megaungula Ewin and Gale 2020
†Alkaidia sumralli Blake and Reid 1998
G. †Viridisaster Fau and Villier 2023
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†Viridisaster guerangeri Fau and Villier 2023
Diagnosis
No diagnoses are available
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

Maximum range based only on fossils: base of the Anisian to the top of the Early/Lower Cenomanian or 247.20000 to 93.50000 Ma
Minimum age of oldest fossil (stem group age): 242.0 Ma

Collections (34 total)


Time interval Ma Country or state Original ID and collection number
Anisian247.2 - 242.0Germany Trichasteropsis senfti (31996 59960) Trichasteropsis weissmanni (59964)
Pelsonian247.2 - 242.0Germany (Niedersachsen) Trichasteropsis bielertorum (66896)
Pelsonian247.2 - 242.0Germany (Nordrhein-Westfalen) Trichasteropsis bielertorum (59967)
Ladinian242.0 - 237.0Germany (Bayern) Berckhemeraster charistikos (59969 59970) Trichasteropsis weissmanni (59965 59966)
Ladinian242.0 - 237.0Germany (Thuringia) Trichasteropsis senfti (59962) Trichasteropsis weissmanni (59963)
Ladinian242.0 - 237.0Germany Trichasteropsis senfti (59958 59959) Trichasteropsis weissmanni (59926 59928) Trichasteropsis weissmanni, Trichasteropsis senfti (59927 59961)
Ladinian242.0 - 237.0Germany (Baden-Württemberg) Berckhemeraster charistikos (59968)
Fassanian242.0 - 235.0Italy Trichasteropsis sp. (119868)
Fassanian242.0 - 235.0Germany Trichasteropsis weissmanni (187348)
Liasicus201.3 - 196.5Belgium (Luxembourg) Terminaster sp. (40087)
Sinemurian199.3 - 190.8Luxembourg Terminaster spinulosus, Terminaster sp. (32014)
Callovian166.1 - 163.5Germany (Brandenburg) Terminaster cancriformis (32016)
Early/Lower Callovian164.7 - 161.2France Terminaster cancriformis (58221)
Late/Upper Oxfordian161.2 - 155.7Switzerland Terminaster cancriformis (58317)
Late/Upper Oxfordian161.2 - 155.7France Terminaster cancriformis (61724)
Late/Upper Hauterivian136.4 - 130.0Switzerland (Neuchatel) Protothyraster priscus (31986)
Late/Upper Albian105.3 - 99.6USA (Texas) Alkaidia sumralli (59875 59876 59878 59880)
Early/Lower Cenomanian99.6 - 93.5USA (Texas) Alkaidia sumralli (59881 59882 59883)