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Showing results for tags 'archaeocyatha'.
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Thought I would share some specimens from my recent trip to the Mt Scott Range, near the town of Leigh Creek and about 540 km north of the city of Adelaide. These Arachaeocyatha can be found just beside the main road and are from the Ajax Limestone, of Lower Cambrian age (528 Ma). I am not able to indentify genera or species but many types are represented. Best way to see them is to either find a sample that has been naturally weathered, which shows up the structure in relief, or cut and polish sections. The last photo shows a longitudinal section of one showing both the double wall structure of the caylyx and also the attachemnt holdfast.
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