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Pseudoacrocephalites

Trilobita - Olenida - Eulomidae

Taxonomy
Pseudoacrocephalites was named by Maksimova (1962) [Sepkoski's age data: Cm Trep-l Cm Trep-u Sepkoski's reference number: 618]. It is not extant. Its type is Pseudoacrocephalites ilgaensis.

It was assigned to Trilobita by Courtessole and Pillet (1976); to Eulomidae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).

Species
P. ilgaensis (type species)

Synonymy list
YearName and author
1962Pseudoacrocephalites Maksimova
1976Pseudoacrocephalites Courtessole and Pillet
2002Pseudoacrocephalites Jell and Adrain p. 433
2002Pseudoacrocephalites Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderOlenida
familyEulomidaeKobayashi 1955
genusPseudoacrocephalitesMaksimova 1962

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. †Pseudoacrocephalites Maksimova 1962
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2010-01-05 01:22:49
Modified: 2010-01-05 03:22:49
Source: f = family, c = class
References: Whittington et al. 1997, Aberhan et al. 2004

Age range: Mansian or 485.40000 to 485.00000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Furongian - Tremadocian497.0 - 477.7Russian Federation (Siberia) P. ishpensis (205378)
Tremadoc486.5 - 477.7Russian Federation (Siberia) P. sp. (9274 9283)
Tremadoc486.5 - 477.7Russian Federation (Krasnoyar) P. ilgaensis (131104)
Mansian485.4 - 485.0Russian Federation (Krasnoyar) P. ilgaensis (131102 131103)
Mansian485.4 - 485.0Russian Federation (Siberia) P. sp. (9273 9280 9287)