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Lets See Your Favorite Cambrian Fossil


PRK

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Cool critters all! I've got a couple Cambrian bugs that I am very fond of but here's a trace fossil that I dug out of the Bonanza King Formation while doing some mapping near Shoshone/Death Valley area, California some 30+ years ago. It has an unknown factor that has always intrigued me--what made it and how did it do it. I posted a shot of it on the forum some time ago but Scott just ID'd it for me in a blink of an eye last night and sent me the article describing what I had---thanks again Scott!

Its a 11 cm long segment of a vertical burrow called Skolithos bulbus. Its all I have of a once larger segment that just seem to go on and on perpendicular to the thin shaly beds in the outcrop. From the 1975 article (PLANOLITES AND SKOLITHOS FROM THE UPPER PRECAMBRIAN-LOWER CAMBRIAN, WHITE-INYO MOUNTAINS, CALIFORNIA by Stephen P. Albert) http://decapoda.nhm.org/pdfs/33143/33143.pdf the author describes these critters in an area north of where I found my example.

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They are not sure what the little segments/bulbs represent. Possibilities include turn around areas which allowed the organism to adjust its orientation in the burrow or they may have been brood or storage areas.

Regards, Chris

Edited by Plantguy
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So I guess I will.

Not my FAVORITES, but I like 'em

I collected these back when Bob Harris was the only game in town. There was no "pay-to-dig" back then.

ELRATHIA pile

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Edited by PRK
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Hello!

There's this slab I have found last May in the south of Öland island in Sweden...it is olenus sp.from the upper Cambrian (Furongian)

I like very much the black cephalon on clear background....

D

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Edited by Dromiopsis
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This is my fav and it's also my only complete trilo! it is Olenellus schucherti.

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Edited by rejd

A fossil hunter needs sharp eyes and a keen search image, a mental template that subconsciously evaluates everything he sees in his search for telltale clues. -Richard E. Leakey

http://prehistoricalberta.lefora.com

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Thanks PRK, it's from Fort Steele BC. I had posted about it here. http://www.thefossilforum.com/index.php?/topic/39380-fort-steele-day-trip-july-26-2013/

A fossil hunter needs sharp eyes and a keen search image, a mental template that subconsciously evaluates everything he sees in his search for telltale clues. -Richard E. Leakey

http://prehistoricalberta.lefora.com

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This is my fav and it's also my only complete trilo! it is Olenellus schucherti.

It is a sweet bug for sure but then I concentrate on Cambrian and Carboniferous bugs over other times, and so have a spot for these early trilobites. Very cool..

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