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† Sigmocheilus
Sigmocheilus

Additional Functions

Grouping

Belong­ing to

 Gaeabionta  ⇒ Domäne: Eukaryota  ⇒ Reich: Animalia  ⇒ Mittelreich: Eumetazoa  ⇒ Klade: Triploblastica  ⇒ Unterreich: Bilateria  ⇒ Klade: Eubilateria  ⇒ Abzweig: Protostomia  ⇒ Infrareich: Ecdysozoa  ⇒ Superstamm: Panarthropoda  ⇒ Stamm: Arthropoda  ⇒ Unterstamm: Mandibulata  ⇒ Klasse: Trilobita  ⇒ Ordnung: Asaphida  ⇒ Superfamilie: Anomocaroidea  ⇒ Familie: Pterocephaliidae  ⇒ Unterfamilie: Pterocephaliinae

Taxo­nomic seg­ment

Gattung

This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.

Name from

Corre­spond­ing author (Name, Year)

Palmer, 1960

Other languages

scientific

Sigmocheilus

Lebenszeitraum in Million Jahren (Ma)

Start age: 485.4 Ma - End age: 485.4 Ma
Phanerozoic
(Phanerozoikum)
Paleozoic
(Paläozoikum)
Ordovician
(Ordovizium)
Lower Ordovician
(Unteres Ordovizium)
Tremadocian
(Tremadocium)
478.6
488.3

Additional data by PBDB, License: CC BY

Motility: fast-moving
Environment: marine
Compositon of the remains:

low Mg Calcite, Chitin

Reference- and Source indication, Literature

Next lower taxonomy level

On the same taxonomic level (siblings) (Count: 3)

Taxonomic assignment (4)

References by PBDB, License: CC BY

  • M. J. Hopkins, 2011 - Species-level phylogenetic analysis of pterocephaliids (Trilobita, Cambrian) from the Great Basin, Western USA - Journal of Paleontology (85), 1128-1153 (journal article, English)
  • A.R. Palmer, 1968 - Cambrian trilobites of East-Central Alaska - United States Geological Survey Professional Paper (559), - (serial monograph, English)
  • A. R. Palmer, 1965 - Trilobites of the Late Cambrian Pterocephaliid Biomere in the Great Basin, United States - United States Geological Survey Professional Paper (493), 1-105 (serial monograph, English)
  • A. R. Palmer, 1960 - Trilobites of the Upper Cambrian Dunderberg Shale, Eureka District, Nevada - United States Geological Survey Professional Paper (334-C), 53-107 (serial monograph, English)