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Helophorus (Mesosperchus) tarsalis

Insecta - Coleoptera - Helophoridae

Taxonomy
Mesosperchus tarsalis was named by Ponomarenko (1977). Its type specimen is PIN 3015/367, an exoskeleton, and it is a compression fossil. Its type locality is Unda (PIN collection 3015), which is in a Tithonian lacustrine - small horizon in the Glushkovo Formation of the Russian Federation.

It was recombined as Helophorus (Mesosperchus) tarsalis by Fikáček et al. (2012).

Sister species lacking formal opinion data
H. oregonensis

Synonyms
Synonymy list
YearName and author
1977Mesosperchus tarsalis Ponomarenko p. 109 figs. Pl 9, figs 3,4; text-fig 58
1990Mesohelophorus elongatus Ponomarenko p. 48 figs. Pl 4, fig 7; text-fig 43
2012Helophorus (Mesosperchus) tarsalis Fikáček et al. p. 104 figs. 29-37, 73-79, 83, 84

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
superclassHexapodaLatreille 1825
classInsecta
—Dicondylia
—Paranotalia
subclassPterygota()
—NeopterygotaCrampton 1924
infraclassNeopteraMartynov 1923
RankNameAuthor
—Holometabola
—Aparaglossata
—Neuropteriformia
—Coleopterida
orderColeoptera
—Mesocoleoptera
—Metacoleoptera
suborderPolyphagaEmery 1886
infraorderStaphyliniformia
superfamilyHydrophiloidea
familyHelophoridae()
genusHelophorus()
subgenusMesosperchus()
speciestarsalis()

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.

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Invalid names: Mesohelophorus elongatus Ponomarenko 1990 [synonym]
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: Kiessling 2004, Bush and Bambach 2015

Age range: Tithonian or 152.10000 to 121.40000 Ma

Collections (10 total)


Time interval Ma Country or state Original ID and collection number
Tithonian152.1 - 145.0Russian Federation (Chita) Mesohelophorus elongatus (125407) Mesosperchus tarsalis (119424 type locality: 123197 152174) Mesosperchus tarsalis, Mesohelophorus elongatus (114307)
Tithonian152.1 - 145.0Russian Federation Mesosperchus tarsalis (125408 138150)
Hauterivian132.9 - 129.4Russian Federation (Chita) Mesosperchus tarsalis (151559)
Barremian129.4 - 125.0Russian Federation (Chita) Mesosperchus tarsalis (151642)
Early/Lower Aptian121.4 - 122.46Russian Federation (Chita) Mesosperchus tarsalis (152173)