Trace fossil · Feeding / dwelling

Thalassinoides

Large, unlined, branching burrow systems (Y- or T-branched boxworks, mazes and shafts); larger than Planolites.

Behavior: Feeding / dwelling
Likely maker: Most closely associated with thalassinidean decapod crustaceans; other makers have been suggested.
Age range: Increases suddenly in abundance at the start of the Mesozoic; examples include Ordovician and Jurassic rocks.
Setting: Not stated in the sources used here.

**Thalassinoides, Israel.** Mark Wilson via Wikimedia Commons, public domain. Source

Photos are hosted by their original sites and shown under their open licenses (CC BY, CC BY-SA, public domain or Open Government Licence). Click a photo for its source page.

All trace fossils Ichnofacies

Sources

Rygel & Quinton, Sedimentary Geology 9.6: Trace Fossils · Wikipedia: Thalassinoides