期刊
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
卷 365, 期 -, 页码 184-191出版社
ELSEVIER
DOI: 10.1016/j.palaeo.2012.09.025
关键词
Ephemeroptera; Fungi; Asthenopodichnium xylobiontum; A. lignorum isp n.; Palaeoecology; New Caledonia
资金
- Agencia Nacional de Promocion Cientifica y Tecnologica of Argentina [PICT 1972]
- ANR grant BIONEOCAL
The ichnospecies Asthenopodichnium xylobiontum comprises U-shaped traces in wood, usually attributed to the activity of mayfly nymphs (Insecta, Ephemeroptera), which indicate the presence of freshwater palaeoenvironments. The record of a new ichnospecies in wood, Asthenopodichnium lignorum, in the Miocene of New Caledonia, strongly indicates that it may correspond to other trace makers because the potential producing Ephemeroptera are absent around these Miocene oceanic islands and in a wide area comprising New Zealand and Australia. We present herein the evidence for wood rotting fungi as potential trace maker of the new ichnospecies that has been previously recorded from Argentina, Egypt, Czech Republic, USA, and Lithuania. The new ichnospecies A. lignorum, in contrast with A. xylobiontum, is an indicator of terrestrial, humid to subhumid, palaeonvironments. (C) 2012 Elsevier B.V. All rights reserved.
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