التفاصيل البيبلوغرافية
| العنوان: |
New Late Cretaceous (Cenomanian) fossil mayfly nymphs (Oligoneuriidae, Heptageniidae, Hexagenitidae) from the Redmond Formation, Labrador, Canada. |
| المؤلفون: |
Mueller, André S., Demers-Potvin, Alexandre V. |
| المصدر: |
Canadian Journal of Earth Sciences; 2024, Vol. 61 Issue 6, p712-722, 11p |
| مصطلحات موضوعية: |
NYMPHS (Insects), CRETACEOUS Period, FOSSILS, MAYFLIES |
| مصطلحات جغرافية: |
NEWFOUNDLAND & Labrador |
| مستخلص: |
Three new fossil mayfly (Ephemeroptera) larvae from the Redmond Formation (Cenomanian) of Newfoundland and Labrador, Canada, are described: Alatuscapillus icarus gen. et sp. nov. (family Oligoneuriidae), Cruscolli sheppardae gen. et sp. nov. (family Heptageniidae), and Protoligoneuria borealis sp. nov. (family Hexagenitidae). This discovery marks the first juvenile insect nymphs to be described from this formation and helps fill gaps in our understanding of the global and temporal distribution of mayflies during the Cretaceous period. Of these, C. sheppardae marks the oldest occurrence of the family Heptageniidae in the fossil record, while A. icarus and P. borealis mark the first fossil occurrences of the families Oligoneuriidae and Hexagenitidae in North America. The anatomy, preservation, and behaviour of these new mayfly species inferred from modern taxa consolidate the hypothesis that the Redmond Formation's palaeoenvironment was lacustrine in nature. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
