Fossil record of the mayfly family Ephemerellidae (Insecta: Ephemeroptera), with description of new species and first report of Ephemerellinae from Baltic amber

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F18%3A00482075" target="_blank" >RIV/60077344:_____/18:00482075 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1080/14772019.2017.1388299" target="_blank" >http://dx.doi.org/10.1080/14772019.2017.1388299</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/14772019.2017.1388299" target="_blank" >10.1080/14772019.2017.1388299</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fossil record of the mayfly family Ephemerellidae (Insecta: Ephemeroptera), with description of new species and first report of Ephemerellinae from Baltic amber

Popis výsledku v původním jazyce

The fossil record of the mayfly family Ephemerellidae is reviewed. Of previously described fossil Ephemerellidae, all records but one are doubtful or erroneous. We reinvestigate the holotype of Ephemerella viscata Demoulin, 1968 from Eocene Baltic amber and confirm its previous placement within the subfamily Timpanoginae Allen, 1984, based on the presence of nvestigial gill sockets on abdominal segments IV–VII only. It is transferred to the genus Eurylophella Tiensuu, 1935 [Eurylophella viscata (Demoulin, 1968) comb. nov.] based on proportions of the forelegs, elongated abdominal segment IX, and the shape of the subimaginal penis. Additionally, we describe two new specimens from Eocene Baltic amber: Ephemerella trigonoptera sp. nov. represents the first fossil record of subfamily Ephemerellinae. It can be separated from other representatives of Ephemerella Walsh, 1862 sensu lato by the shape of the hind wings, which are remarkably narrowed towards the apex, with a costal projection located rather proximally. The second new specimen, a male subimago, cannot be differentiated from other Ephemerellinae due to its poor preservation. The discovery of Ephemerella trigonoptera sp. nov., together with the taxonomic nreassessment of Eurylophella viscata comb. nov., provide the first reliable evidence that both subfamilies of Ephemerellidae, Ephemerellinae and Timpanoginae, date back at least to the Palaeogene. The biogeographical and palaecological implications of these findings are discussed.

Název v anglickém jazyce

Fossil record of the mayfly family Ephemerellidae (Insecta: Ephemeroptera), with description of new species and first report of Ephemerellinae from Baltic amber

Popis výsledku anglicky

The fossil record of the mayfly family Ephemerellidae is reviewed. Of previously described fossil Ephemerellidae, all records but one are doubtful or erroneous. We reinvestigate the holotype of Ephemerella viscata Demoulin, 1968 from Eocene Baltic amber and confirm its previous placement within the subfamily Timpanoginae Allen, 1984, based on the presence of nvestigial gill sockets on abdominal segments IV–VII only. It is transferred to the genus Eurylophella Tiensuu, 1935 [Eurylophella viscata (Demoulin, 1968) comb. nov.] based on proportions of the forelegs, elongated abdominal segment IX, and the shape of the subimaginal penis. Additionally, we describe two new specimens from Eocene Baltic amber: Ephemerella trigonoptera sp. nov. represents the first fossil record of subfamily Ephemerellinae. It can be separated from other representatives of Ephemerella Walsh, 1862 sensu lato by the shape of the hind wings, which are remarkably narrowed towards the apex, with a costal projection located rather proximally. The second new specimen, a male subimago, cannot be differentiated from other Ephemerellinae due to its poor preservation. The discovery of Ephemerella trigonoptera sp. nov., together with the taxonomic nreassessment of Eurylophella viscata comb. nov., provide the first reliable evidence that both subfamilies of Ephemerellidae, Ephemerellinae and Timpanoginae, date back at least to the Palaeogene. The biogeographical and palaecological implications of these findings are discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Systematic Palaeontology

ISSN

1477-2019

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

1319-1335

Kód UT WoS článku

000442290900003

EID výsledku v databázi Scopus

2-s2.0-85041370741