Undichna britannica
| Undichna britannica Temporal range: Silurian – ? | |
|---|---|
Trace fossil classification  | |
| Ichnogenus: | †Undichna |
| Ichnospecies: | †U. britannica |
| Binomial name | |
| Undichna britannica | |
Undichna britannica is a fish-fin, or fish-swimming fossil trackway left as a fossil impression on a substrate; this type of fossil is an ichnofossil, and in this case an ichnospecies.
The U. britannica fish-fin tracks, or trackways are often associated with current or wave ripple marks, probably shallow water, near-shoreline. Other deep water varieties may be less common, or associated with narrowed current flow between obstructions. The sinusoidal high points of the ripple marks may lend itself to the formation of the trackways.
See also
External links
- Photo-(non-ripple mark associated); Article – (kgs.ku.edu) - "Kansas Geological Survey"
This article is issued from Wikipedia - version of the 4/5/2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.