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Terminaster cancriformis

Asteroidea - Zorocallida

Taxonomy
Asterias cancriformis was named by Quenstedt (1876). It is not extant. Its type specimen is Institut für Geologie und Paläontologie, Universität Tübingen. It is the type species of Terminaster. It was considered monophyletic by Hess (1974).

It was recombined as Terminaster cancriformis by Hess (1974), Hess (1975), Kutscher (1987), Villier et al. (2009), Gale (2011), Gale (2011) and Fau and Villier (2023).

Synonymy list
YearName and author
1876Asterias cancriformis Quenstedt p. 49 figs. pl. 91 fig. 155
1974Terminaster cancriformis Hess p. 657 figs. 1-8, pl. 1-3
1975Terminaster cancriformis Hess p. 657 figs. 1-8, pl. 1-3
1987Terminaster cancriformis Kutscher pp. 66-67 figs. pl. 10 fig. 11, pl. 11 fig. 2-4
2009Terminaster cancriformis Villier et al. pp. 390-394 figs. figs. 3.1-3.3, 4.1-4.4
2011Terminaster cancriformis Gale pp. 84-87 figs. figs 16a-f
2023Terminaster cancriformis Fau and Villier p. 10

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

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.

†Terminaster cancriformis Quenstedt 1876
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Diagnosis
ReferenceDiagnosis
H. Hess 1974As for the genus by monotypy
L. Villier et al. 2009Size small. Form stellate with reduced disk and cylindrical arms. Primary plates of the
disk clearly differentiated with one centrodorsal and a primary circlet of radial and interradial plates. Plates of the arm large, aligned in three well defined rows (interpreted as radial, superomarginal, and inferomarginal plates), each plate with a spine. Few additional and reduced plates intercalated between radial and superomarginal plates. Adambulacral plates all of the same shape,with ornament of two spines. Two rows of podial pores. Mouth angle plate with a large oral spine. First adambulacral plates of
adjoining arms in contact interbrachially, to form a reduced adoral carina. Terminal plate very large with aligned tubercles for articulation of spines on oral margins and smaller tubercles on the abactinal side. Pedicellariae unknown.
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 Early/Lower Callovian to the top of the Late/Upper Oxfordian or 164.70000 to 155.70000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
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)