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Silurian Worm Casts

Sulurian worm


These are trace fossils - so called because they are traces or tracks left by animals rather than their body. Imagine a worm that lived millions of years ago in the Sulurian Period and the sand it burrowed through was turned to rock and the burrows remained as tubes in the rock.


Kalbarri on the seashore

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KerryHawkins 7 years ago

Maybe I should put this on Mountains and Rocks Luis!

LuisStevens 7 years ago

Awesome and interesting Kerry!

KerryHawkins 7 years ago

Thanks Gerado. Nature throws so many interesting things at us!

Gerardo Aizpuru
Gerardo Aizpuru 7 years ago

Very interesting great spot !

KerryHawkins 7 years ago

Sorry Neil, I have no idea about the dark crystal clusters. Maybe someone else can enlighten us. It was a long time ago and I can't recall. The worm casts had my attention.

Neil Ross
Neil Ross 7 years ago

Wow. Now this is quite an extraordinary photo, and it looks very surreal when viewed large. I love natural history, and this type of phenomenon really appeals to me. Kerry, on the rock ledge there are what appears to be dark crystal clusters. I can see four of them. Do you recall what they are? Another amazing image!!!

KerryHawkins 7 years ago

Yes Leanne, sooo interesting!

LeanneGardner 7 years ago


KerryHawkins 7 years ago

There are heaps of them around the rocks. Could not believe it. Yes WA has a wealth of natural wonders Mark.

Mark Ridgway
Mark Ridgway 7 years ago

That's amazing Kerry. I'll add that to my WA must visit list.

Spotted by

Western Australia, Australia

Spotted on Aug 17, 2003
Submitted on Jun 17, 2013

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