Syninclusions of two new species of short-winged flower beetle (Coleoptera: Kateretidae) in mid-Cretaceous Kachin amber (Myanmar)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F20%3A10134802" target="_blank" >RIV/00023272:_____/20:10134802 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0195667119302599" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0195667119302599</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cretres.2019.104264" target="_blank" >10.1016/j.cretres.2019.104264</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Syninclusions of two new species of short-winged flower beetle (Coleoptera: Kateretidae) in mid-Cretaceous Kachin amber (Myanmar)

Popis výsledku v původním jazyce

Evidence of behavior is rarely found in fossil record. Here we describe two new species in Coleoptera tentatively described in Kateretidae based on two syninclusions (co-occurrences of multiple individuals) from mid-Cretaceous Kachin amber (Myanmar). Cretaretes minimus gen. et sp. nov. is described based on 41 fossil beetle specimens together in one piece of fossil resin and Eoceniretes antiquus sp. nov. is also described based on 41 fossil beetle specimens together in another piece of fossil resin from the same deposit. Eoceniretes Kirejtshuk and Nel, 2008 was first described from a fossil embedded in the lower Eocene Oise amber (France). This new species, Eoceniretes antiquus sp. nov., exhibits sexual dimorphism; males have a long and modified scapes. Although male mechanical modifications are usually understood to play a role in intrasexual competition, in this case the modified scapes is hypothesized to fulfill some function for sexual communication rather than for fighting. The syninclusions of many specimens from the same species demonstrate that this group of beetles, which today form large aggregations as larval and adult stages to feed on angiosperm flowers, had this aggregation behavior as early as the mid-Cretaceous. Kachin Myanmar amber (98.79 +- 0.62 Ma) was deposited during an intense diversification of angiosperms (also called Cretaceous Terrestrial Revolution), and so we postulate that Kateretidae were a possible pollinators for the basal angiosperms, an inference based upon their aggregative and pollination behavior in the extant species.

Název v anglickém jazyce

Syninclusions of two new species of short-winged flower beetle (Coleoptera: Kateretidae) in mid-Cretaceous Kachin amber (Myanmar)

Popis výsledku anglicky

Evidence of behavior is rarely found in fossil record. Here we describe two new species in Coleoptera tentatively described in Kateretidae based on two syninclusions (co-occurrences of multiple individuals) from mid-Cretaceous Kachin amber (Myanmar). Cretaretes minimus gen. et sp. nov. is described based on 41 fossil beetle specimens together in one piece of fossil resin and Eoceniretes antiquus sp. nov. is also described based on 41 fossil beetle specimens together in another piece of fossil resin from the same deposit. Eoceniretes Kirejtshuk and Nel, 2008 was first described from a fossil embedded in the lower Eocene Oise amber (France). This new species, Eoceniretes antiquus sp. nov., exhibits sexual dimorphism; males have a long and modified scapes. Although male mechanical modifications are usually understood to play a role in intrasexual competition, in this case the modified scapes is hypothesized to fulfill some function for sexual communication rather than for fighting. The syninclusions of many specimens from the same species demonstrate that this group of beetles, which today form large aggregations as larval and adult stages to feed on angiosperm flowers, had this aggregation behavior as early as the mid-Cretaceous. Kachin Myanmar amber (98.79 +- 0.62 Ma) was deposited during an intense diversification of angiosperms (also called Cretaceous Terrestrial Revolution), and so we postulate that Kateretidae were a possible pollinators for the basal angiosperms, an inference based upon their aggregative and pollination behavior in the extant species.

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

2020

Kód důvěrnosti údajů

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

Název periodika

Cretaceous Research

ISSN

0195-6671

e-ISSN

—

Svazek periodika

106

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

000503313100041

EID výsledku v databázi Scopus

—