Upper Cretaceous trace fossils in permineralized plant remains from Patagonia, Argentina
作者:
JorgeF. Genise,
期刊:
Ichnos
(Taylor Available online 1995)
卷期:
Volume 3,
issue 4
页码: 287-299
ISSN:1042-0940
年代: 1995
DOI:10.1080/10420949509386399
出版商: Taylor & Francis Group
关键词: trace fossils;insect borings;permineralized wood;Cretaceous;Argentina
数据来源: Taylor
摘要:
Four new ichnogenera and six new ichnospecies are described from permineralized plant remains from an unnamed Upper Cretaceous formation, of northern Patagonia in Argentina. This association of traces is the second ichnocenosis described for permineralized wood. Traces are interpreted as insect borings in wood and fruits.Cycalichnus garciorumn. ichnosp. is the first trace fossil recorded in a cycad stem and the oldest known evidence of a termite nest for the southern hemisphere.Stipitichnus koppaen. ichnosp. is the first trace fossil recorded in a palm stem.Xylonichnus trypetusn. ichnosp. is interpreted as borings of beetles in conifer wood.Carporichnus maximusn. ichnosp.,C. bertheorumn. ichnosp., andC. minimusn. ichnosp. represent the first ichnocenosis related with a single species of fruit, and the only known Mesozoic borings in fruits. An historical overview of insect traces in permineralized wood shows that most were described ignoring the ichnological aspects, and this resulted in the absence of a taxonomic classification. In this paper, the main ichnotaxobases to describe insect traces in petrified wood are proposed for the first time.
点击下载:
PDF (1348KB)
返 回