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Astropecten matilijaensis

Asteroidea - Paxillosida - Astropectinidae

Taxonomy
Astropecten matilijaensis was named by Durham and Roberts (1948). Its type specimen is holotype 4858, paratypes 4858-4865, 4967, 4868 and is a 3D body fossil.

It was recombined as Archastropecten matilijaensis by Hess (1955).

Synonymy list
YearName and author
1948Astropecten matilijaensis Durham and Roberts p. 432 figs. pl. 65 fig. 1-5; pl. 66 fig. 2, 4-5
1955Archastropecten matilijaensis Hess p. 44
1981Astropecten matilijaensis Blake p. 38

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Asterozoa()
RankNameAuthor
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderPaxillosida
familyAstropectinidae
genusAstropecten
speciesmatilijaensis

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.

†Astropecten matilijaensis Durham and Roberts 1948
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Diagnosis
ReferenceDiagnosis
J. W. Durham and W.A. Roberts 1948Small form, mean R equals to 26,5 mm. Arms relatively short. R/r ratio equals 3.2. Approximately 15 pairs of marginal per half-arc. Madreporite large. Abactinal plates small, roughly rounded, thick. Actinolateral area small, reduced to the disk. Superomarginal plates nearly as long as wide. Ornament of fine, irregular granule-pits. Inferomarginal plates broad, rectangular to triangular in the interbrachial arc. Ornament of three spines (one short, and two long, acicular). Mouth angle plate triangular with at least seven conical spines.
Measurements
No measurements are available
Composition: high Mg calcitef
Ontogeny: accretion, addition of partsp
Grouping: solitaryf
Environment: marinef
Locomotion: slow-movingf
Life habit: semi-infaunalf
Diet: carnivoref
Vision: limitedc
Reproduction: oviparousf
Dispersal: waterf
Dispersal 2: planktonicf
Created: 2007-10-02 03:56:56
Modified: 2009-10-10 10:31:00
Source: f = family, c = class, p = phylum
References: Aberhan 1992, Blake 1990, Aberhan et al. 2004

Age range: Middle Eocene or 47.80000 to 37.71000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Middle Eocene47.8 - 37.71USA (California) Astropecten matilijaensis (202048 202049)