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First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution
The small, monophyletic mayfly family Vietnamellidae Allen, 1984 has so far only been known from a few extant species of the genus Vietnamella Tshernova, 1972, which are all distributed in the Oriental Realm (Vietnam, Thailand, China, and India). Herein we report the first fossil record of Vietnamel...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Pensoft Publishers
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8128840/ https://www.ncbi.nlm.nih.gov/pubmed/34040482 http://dx.doi.org/10.3897/zookeys.1036.66435 |
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author | Godunko, Roman J. Martynov, Alexander V. Staniczek, Arnold H. |
author_facet | Godunko, Roman J. Martynov, Alexander V. Staniczek, Arnold H. |
author_sort | Godunko, Roman J. |
collection | PubMed |
description | The small, monophyletic mayfly family Vietnamellidae Allen, 1984 has so far only been known from a few extant species of the genus Vietnamella Tshernova, 1972, which are all distributed in the Oriental Realm (Vietnam, Thailand, China, and India). Herein we report the first fossil record of Vietnamellidae based on a male and female imago from Mid-Cretaceous Burmese amber. We establish the new genus Burmellagen. nov. to accommodate these two new Mesozoic specimens. Their attribution to Vietnamellidae is supported by the rounded shape of the hind wings with arched outer margin, the course of thoracic sutures, and characteristics of venation, especially of MP and Cu of the forewings and associated intercalary veins of the cubital field. At the same time, Burmellagen. nov. clearly differs from Vietnamella by a diminished number of longitudinal and cross veins in the hind wings, and by the different shape of male genitalia. This first fossil record of Vietnamellidae supports an age of at least 100 Ma for this taxon. |
format | Online Article Text |
id | pubmed-8128840 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Pensoft Publishers |
record_format | MEDLINE/PubMed |
spelling | pubmed-81288402021-05-25 First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution Godunko, Roman J. Martynov, Alexander V. Staniczek, Arnold H. Zookeys Research Article The small, monophyletic mayfly family Vietnamellidae Allen, 1984 has so far only been known from a few extant species of the genus Vietnamella Tshernova, 1972, which are all distributed in the Oriental Realm (Vietnam, Thailand, China, and India). Herein we report the first fossil record of Vietnamellidae based on a male and female imago from Mid-Cretaceous Burmese amber. We establish the new genus Burmellagen. nov. to accommodate these two new Mesozoic specimens. Their attribution to Vietnamellidae is supported by the rounded shape of the hind wings with arched outer margin, the course of thoracic sutures, and characteristics of venation, especially of MP and Cu of the forewings and associated intercalary veins of the cubital field. At the same time, Burmellagen. nov. clearly differs from Vietnamella by a diminished number of longitudinal and cross veins in the hind wings, and by the different shape of male genitalia. This first fossil record of Vietnamellidae supports an age of at least 100 Ma for this taxon. Pensoft Publishers 2021-05-10 /pmc/articles/PMC8128840/ /pubmed/34040482 http://dx.doi.org/10.3897/zookeys.1036.66435 Text en Roman J. Godunko, Alexander V. Martynov, Arnold H. Staniczek https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Godunko, Roman J. Martynov, Alexander V. Staniczek, Arnold H. First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution |
title | First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution |
title_full | First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution |
title_fullStr | First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution |
title_full_unstemmed | First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution |
title_short | First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution |
title_sort | first fossil record of the mayfly family vietnamellidae (insecta, ephemeroptera) from burmese amber confirms its oriental origin and gives new insights into its evolution |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8128840/ https://www.ncbi.nlm.nih.gov/pubmed/34040482 http://dx.doi.org/10.3897/zookeys.1036.66435 |
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