The fish swimming trace Undichna unisulca from the Silurian of Sweden: probably the oldest vertebrate locomotion trace fossil

被引：8
|
作者：
Knaust, Dirk [1 ]
Minter, Nicholas J. [2 ]
机构：
[1] Statoil ASA, N-4035 Stavanger, Norway
[2] Univ Portsmouth, Sch Earth & Environm Sci, Portsmouth PO1 3QL, Hants, England
来源：
LETHAIA | 2018年 / 51卷 / 04期
关键词：
Fish; Silurian; Sweden; trace fossil; Undichna; vertebrate; SOUTH CHINA; ORDOVICIAN; SANDSTONE; GOTLAND; PALEOECOLOGY; DIVERSITY;
D O I：
10.1111/let.12272
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
The fish swimming trace Undichna unisulca is reported from a sandstone block collected from the Upper Silurian (Ludlow) Burgsvik Formation of Gotland, Sweden. It represents the oldest record of a vertebrate trace (apart from coprolites), predating previous finds from the Lower Devonian by at least 10Ma. A thelodont or acanthodian fish may have produced the sinusoidal trails with the aid of their caudal or anal fins while browsing slowly over the sediment whilst searching for food.
引用
收藏
页码：469 / 472
页数：4
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