PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Mesopalaeaster finei

Asteroidea - Euaxosida - Mesopalaeasteridae

Taxonomy

Palaeaster finei was named by Ulrich (1879).

It was recombined as Mesopalaeaster finei by Schuchert (1915); it was recombined as Promopalaeaster finei by Branstrator (1979).

Sister species lacking formal opinion data

M. lancolatus

Synonyms

Mesopalaeaster proavitus was named by Schuchert (1915). Its type specimen is at the University of Chicago and is a 3D body fossil.

It was synonymized subjectively with Promopalaeaster finei by Branstrator (1979).

Synonymy list

Year	Name and author
1879	Palaeaster finei Ulrich p. 19 figs. pl. 7 figs. 15a, b
1915	Mesopalaeaster finei Schuchert pp. 81-82 figs. pl. 7 fig. 5, pl. 9 fig. 5
1915	Mesopalaeaster proavitus Schuchert pp. 83-84
1979	Promopalaeaster finei Branstrator p. F4 figs. Plate 1, figures 4-9; plate 2, figures 1-6

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
—	Ambulacraria
phylum	Echinodermata
subphylum	Eleutherozoa

Rank	Name	Author
—	Asterozoa	()
class	Asteroidea
order	Euaxosida
family	Mesopalaeasteridae
genus	Mesopalaeaster
species	finei	()

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.

†Mesopalaeaster finei Ulrich 1879

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Invalid names: Promopalaeaster proavitus Schuchert 1915 [synonym]

Diagnosis

Reference	Diagnosis
J. W. Branstrator 1979	Promopalaeaster with intermarginal and adradial accessory ossicles arranged in alternately prominent transverse rows. Intermarginal and adradial ossicles less massive than adjacent ossicles in primary columns; substantially excavated on ossicle margins.

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: base of the Turinian to the top of the Edenian or 457.30000 to 450.20000 Ma

Collections (4 total)

Time interval	Ma	Country or state	Original ID and collection number
Turinian	457.3 - 453.8	USA (Kentucky)	Promopalaeaster finei (100231)
Kirkfieldian	457.3 - 449.6	USA (Kentucky)	Promopalaeaster finei (87825)
Katian	453.0 - 445.2	USA (Kentucky)	Promopalaeaster finei (100247)
Edenian	451.0 - 450.2	USA (Ohio)	Promopalaeaster finei (384)