Late-glacial Coleoptera fauna from Lismore, Nova Scotia

Auteurs-es

  • Randall F. Miller Natural Sciences Division, New Brunswick Museum, Saint John, New Brunswick E2K 1E5, Canada
  • Alan V. Morgan Quaternary Sciences Institute, Department of Earth Sciences, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada

DOI :

https://doi.org/10.4138/1734

Résumé

Fossil Coleoptera from a late-glacial site near Lismore, Nova Scotia record paleoclimatic and paleoecological conditions prior to the Younger Dryas in eastern Canada. A buried peat deposit dated 11,900 years B.P. near the base and 10,500 years B.P. at the top contains a small insect fauna that includes both boreal species, such as Olophrum consimile, and subarctic beetle species like Elaphrus lapponicus. Although a palynological study of the Lismore site shows evidence of the Younger Dryas, the beetle fauna is poorly preserved in sandy peat deposits dated younger than 10.600 years B.P. RÉSUMÉ Les coléopteres fossiles provenant d'une site tardi-glaciaire près de Lismore, Nouvelle-Écosse, témoignent des conditions paléoclimatiques et paléoécologiques antérieures au Dryas tardif de Test du Canada. Un dépôt de tourbe, datant de 11,900 B.P. à la base et de 10,500 B.P. au sommet, contient une faune de petits insectes qui inclut autant des espèces boréales, comme Olophrum consimile, que des espèces subarctiques, telle Elaphrus lapponicus. Bien que l'étude palynologique du site de Lismore montre des évidences du Dryas tardif, la faune de coédoptères est mal préservée dans les dépôts de tourbière sablonneux plus jeunes que 10,600 B.P. [Traduit par le journal]

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Publié-e

1991-11-01

Comment citer

Miller, R. F., & Morgan, A. V. (1991). Late-glacial Coleoptera fauna from Lismore, Nova Scotia. Atlantic Geoscience, 27(3). https://doi.org/10.4138/1734

Numéro

Vol. 27 No. 3 (1991)

Rubrique

Articles

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