Asaphus expansus

Species of trilobite From Wikipedia, the free encyclopedia

Asaphus expansus (/ˈæsæfʌs ɛkspænsʌs/) is the type species of the asaphid trilobite genus Asaphus. It was previously classified as Entomostracites expansus before being split off into its own genus.[2]

Phylum:Arthropoda
Clade:Artiopoda
Class:Trilobita
Order:Asaphida
Quick facts Scientific classification, Binomial name ...
Asaphus expansus
Temporal range: upper Floian to Darriwilian [1]
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Artiopoda
Class: Trilobita
Order: Asaphida
Family: Asaphidae
Genus: Asaphus
Species:
A. expansus
Binomial name
Asaphus expansus
(Wahlenberg, 1821)
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Location

Most specimens have been obtained in Northern Europe, with one known exception being in North America.[3]

Characteristics

Asaphus expansus differs from related species in its genus by having a cranidium that is considered broad, as opposed to its more medium sized counterparts. Examples of these other species are A. fallax and A. raniceps.[4]

References

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