Tisoa在贵州中三叠统边阳组中的发现

详细信息

DISCOVERY OF TISOA IN THE MIDDLE TRIASSIC BIANYANG FORMATION IN GUIZHOU

摘要: 对在贵州省罗甸县边阳镇中三叠统拉丁阶边阳组发现的管状遗迹化石Ｔｉｓｏａ作了首次报道。建立一个新遗迹种Ｔｉｓｏａｂａｎｙａｎｇｅｎｓｉｓ，根据其特征分析，该类遗迹化石是滤食性双壳类挖掘的潜穴被充填后形成。潜穴管中的两个空管道为双壳类进出水管。此遗迹化石为“浅水型”，是在广海陆棚深水环境下沉积的
Abstract: This paper first reports the ichnogenus Tisoa （a kind of burrow） from the Middle Triassic Latinic Bianyang Formation in Bianyang Township,Luodian county,Guizhou province.A new ichnospecies Tisoa banyangensis is established, and its characteristics are described.This type of trace fossil is a burrow dug by suspension feeding bivalves filled by sediments.Two tubes in the burrow are siphons of the bivalves.The trace fossil is of “shallow type”.It was deposited in a deep water open shelf.
- trace fossil /
- Triassic /
- deep water open shelf