Syninclusions of two new species of short-winged flower beetle (Coleoptera: Kateretidae) in mid-Cretaceous Kachin amber (Myanmar)
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Syninclusions of two new species of short-winged flower beetle (Coleoptera: Kateretidae) in mid-Cretaceous Kachin amber (Myanmar)
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10616 - Entomology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Cretaceous Research
ISSN
0195-6671
e-ISSN
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Volume of the periodical
106
Issue of the periodical within the volume
February
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
1-11
UT code for WoS article
000503313100041
EID of the result in the Scopus database
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