Biology:Aayemenaytcheia

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Short description: Extinct genus of trilobites

Aayemenaytcheia
Temporal range: 407–392 Ma
Emsian-Eifelian
Aayemenaytcheia paragranulata.jpg
Artist's reconstruction
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Proetida
Family: Proetidae
Genus: Aayemenaytcheia
Lieberman, 1994
Species:
A. paragranulata
Binomial name
Aayemenaytcheia paragranulata
(Ormiston, 1967)
Synonyms

Dechenella paragranulata Ormiston, 1967

Aayemenaytcheia paragranulata is a Middle Devonian proetid trilobite.

Etymology

The genus name is the vocalisation of the acronym AMNH of the American Museum of Natural History and the suffix -ia (Aay-Em-En-Aytche-ia), as gratitude for funding Lieberman's research. The species epithet paragranulata refers to the fact that the species was first regarded as closely related to Dechenella granulata.[1]

Distribution

A. paragranulata has been collected from the Devonian of Canada (Emsian and Eifelian, Blue Fjord Formation, Bathurst Island, Nunavut).[1]

Taxonomy

Cladogram of the genera of the subfamily Proetinae, according to Lieberman, 1994, figures 5 and 6

Aayemenaytcheia paragranulata was originally described as a species belonging to the genus Dechenella. Recent cladistic analysis however makes it likely the species is in fact the earliest branch of a clade that further includes Lacunoporaspis, Dechenella, Schizoproetus and Schizoproetoides. So in order to retain the monophyly of the genus Dechenella, a new genus was erected for D. paragranulata.[1]

References

External links

Wikidata ☰ Q13487261 entry