PBDB Taxon

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Eocaenonemonychini

Insecta - Coleoptera - Nemonychidae

Taxonomy

Eocaenonemonychini was named by Legalov (2013). Its type is Eocaenonemonyx.

It was assigned to Cretonemonychinae by Legalov (2013) and Legalov (2015).

Subtaxa

Eocaenonemonyx (type genus), Eugnamptus decemsatus, Sitona grandaevus

Synonyms

Sitona grandaevus was named by Scudder (1876). It is a compression fossil. Its type locality is Petrified fish cut (Richardson Coll), which is in a Bridgerian lacustrine - large diatomite/shale in the Green River Formation of Wyoming.

It was recombined as Eugnamptus grandaevus by Scudder (1890) and Scudder (1893); it was considered a nomen dubium by Legalov (2015).
Eugnamptus decemsatus was named by Scudder (1878). Its type specimen is 4046, an elytra (elytron with a broken base), and it is a compression fossil. Its type locality is Petrified fish cut (Scudder collection), which is in a Bridgerian lacustrine - large diatomite/shale in the Green River Formation of Wyoming.

It was considered a nomen dubium by Legalov (2015).

Synonymy list

Year	Name and author
1876	Sitona grandaevus Scudder pp. 83-84
1878	Eugnamptus decemsatus Scudder pp. 764-765
1878	Sitona grandaevus Scudder p. 767
1890	Eugnamptus grandaevus Scudder p. 481
1890	Eugnamptus decemsatus Scudder p. 482 figs. Pl 8 fig 12
1893	Eugnamptus grandaevus Scudder p. 14 figs. Pl 4, fig 9
1893	Eugnamptus decemsatus Scudder p. 15
2013	Eocaenonemonychini Legalov p. 410
2015	Eocaenonemonychini Legalov p. 1450

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Ecdysozoa
—	Panarthropoda
phylum	Arthropoda	Latreille 1829
superclass	Hexapoda	Latreille 1825
class	Insecta
—	Dicondylia
—	Paranotalia
subclass	Pterygota	()
—	Neopterygota	Crampton 1924
infraclass	Neoptera	Martynov 1923
—	Holometabola

Rank	Name	Author
—	Aparaglossata
—	Neuropteriformia
—	Coleopterida
order	Coleoptera
—	Mesocoleoptera
—	Metacoleoptera
suborder	Polyphaga	Emery 1886
infraorder	Cucujiformia	Lameere 1938
—	Phytophaga
superfamily	Curculionoidea
family	Nemonychidae
subfamily	Cretonemonychinae
tribe	Eocaenonemonychini
tribe	Eocaenonemonychini

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.

Tr. †Eocaenonemonychini Legalov 2013

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G. †Eocaenonemonyx Legalov 2013

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†Eocaenonemonyx kuscheli Legalov 2013

Invalid names: Eugnamptus decemsatus Scudder 1878 [nomen dubium], Sitona grandaevus Scudder 1876 [nomen dubium]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

chitinc

Environment:

terrestrialc

Locomotion:

actively mobilep

Created:

2017-04-17 09:56:18

Modified:

2017-04-17 09:56:18

Source: c = class, p = phylum

References: Bush and Bambach 2015, Kiessling 2004

Age range: Bridgerian or 50.30000 to 46.20000 Ma

Collections (5 total)

Time interval	Ma	Country or state	Original ID and collection number
Bridgerian	50.3 - 46.2	USA (Utah)	Eocaenonemonyx kuscheli (149637)
Bridgerian	50.3 - 46.2	USA (Wyoming)	Eugnamptus decemsatus (121322) Eugnamptus grandaevus (122090 122092) Sitona grandaevus (121306)