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Proactis

Asteroidea

Taxonomy
Proactis was named by Spencer (1914). It is not extant.

It was assigned to Asteroidea by Spencer (1914).

Species
P. wenlockensis

Synonymy list
YearName and author
1914Proactis Spencer

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
RankNameAuthor
phylumEchinodermata
subphylumEleutherozoa
—Asterozoa()
classAsteroidea
genusProactis

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. †Proactis Spencer 1914
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†Proactis wenlockensis Spencer 1914
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: Telychian or 438.60000 to 432.90000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Telychian438.6 - 432.9United Kingdom P. wenlockensis (224104)