An overview of the Hexagenitidae (Ephemeroptera) from the Crato Formation (Aptian, Lower Cretaceous) of Brazil, with the description of a new species

Storari, Arianny P.; Godunko, Roman J.; Salles, Frederico Falcão; Saraiva, Antônio Álamo Feitosa; Staniczek, Arnold H.; Rodrigues, Taissa

doi:10.1080/08912963.2021.1952196

Cited by 7 publications

(1 citation statement)

References 22 publications

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“…The fossil record shows that mayflies were abundant and extremely numerous regionally during the Cretaceous, being reported from Asia, North America, and the early Cretaceous of Africa and Australia 36 – 42 . In South America they are restricted to the Aptian–Albian Crato Formation of Brazil, where more than 17 species have been described 42 , and a single finding in the Lower-Upper Cretaceous of Colombia 43 .…”

Section: Resultsmentioning

confidence: 99%

A Maastrichtian insect assemblage from Patagonia sheds light on arthropod diversity previous to the K/Pg event

Vera,

Monferran,

Massaferro

et al. 2023

Commun Biol

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Insect faunas from the latest Cretaceous are poorly known worldwide. Particularly, in the Southern Hemisphere, there is a gap regarding insect assemblages in the Campanian-Maastrichtian interval. Here we present an insect assemblage from the Maastrichtian Chorrillo Formation, southern Argentina, represented by well-preserved and non-deformed, chitinous microscopic remains including head capsules, wings and scales. Identified clades include Chironomidae dipterans, Coelolepida lepidopterans, and Ephemeroptera. The assemblage taxonomically resembles those of Cenozoic age, rather than other Mesozoic assemblages, in being composed by diverse chironomids and lepidopterans. To the best of our knowledge, present discovery constitutes the first insect body fossils for the Maastrichtian in the Southern Hemisphere, thus filling the gap between well-known Early Cretaceous entomofaunas and those of Paleogene age. The presented evidence shows that modern clades of chironomids were already dominant and diversified by the end of the Cretaceous, in concert with the parallel radiation of aquatic angiosperms which became dominant in freshwater habitats. This exceptional finding encourages the active search of microscopic remains of fossil arthropods in other geological units, which could provide a unique way of enhancing our knowledge on the past diversity of the clade.

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Section: Resultsmentioning

confidence: 99%

A Maastrichtian insect assemblage from Patagonia sheds light on arthropod diversity previous to the K/Pg event

Vera,

Monferran,

Massaferro

et al. 2023

Commun Biol

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The first benthic insects (Ephemeroptera and Coleoptera) from the Upper Cretaceous of Colombia

Alfonso-Rojas

Cadena

2022

Cretaceous Research

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A new Gondwanan mayfly family from the Lower Cretaceous Crato Formation, Brazil (Ephemeroptera: Siphlonuroidea: Astraeopteridae fam. nov.)

Storari

Staniczek

Godunko

2023

Sci Rep

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The adult holotype of the fossil mayfly Astraeoptera cretacica Brandão et al. 2021 from the Cretaceous Crato Formation, Brazil, is reviewed and attributed to a new family Astraeopteridae fam. nov. Based on alate specimens, we also describe further new representatives of Astraeopteridae fam. nov., namely Astraeoptera vitrea sp. nov. and Astraeoptera oligovenata sp. nov., as well as the new genus and species Eosophobia acuta gen. et sp. nov. A subsequent character analysis of the new material suggests systematic affinities of Astraeopteridae fam. nov. with those extant families of Siphlonuroidea distributed in the Southern Hemisphere. These newly described fossil Siphlonuroidea from the Cretaceous of Brazil thus add to the biogeography and systematics of mayflies.

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An overview of the Hexagenitidae (Ephemeroptera) from the Crato Formation (Aptian, Lower Cretaceous) of Brazil, with the description of a new species

Cited by 7 publications

References 22 publications

A Maastrichtian insect assemblage from Patagonia sheds light on arthropod diversity previous to the K/Pg event

A Maastrichtian insect assemblage from Patagonia sheds light on arthropod diversity previous to the K/Pg event

The first benthic insects (Ephemeroptera and Coleoptera) from the Upper Cretaceous of Colombia

A new Gondwanan mayfly family from the Lower Cretaceous Crato Formation, Brazil (Ephemeroptera: Siphlonuroidea: Astraeopteridae fam. nov.)

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