Fossils & Geological Features

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Fossils & Geological Features

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waltraud wrote:

Yesterday

https://canberra.naturemapr.org/users/8083, to be honest I don't know. Both groups are bilateral symmetric and have species with similar looking shells; however, the mussels (bivalvia) have a right and left and the Brachiopodia have a upper and lower shell; I'm afraid without additional structural info it is hard to say. Given the richness of Brachiopodia in Canberra's fossil record in similar Silurian formation e.g. the mudstone at woolshed creek, I would opt for Brachiopodia; see https://artsandculture.google.com/story/a-c-t-fossil-emblem-geoscience-australia/cAWBTqZZczzjKA?hl=en

Bivalvia (class) fossil

MichaelBedingfield wrote:

Yesterday

Hi Waltraud. It looked like a bivalve from the photo, but happy to change to Brachiopodes if you think that's what it is.

Bivalvia (class) fossil

waltraud wrote:

Yesterday

hi MichaelBedingfield how did you arrive at Bivalvia ie mollusks with lateral symmetry rather than Brachiopodes with a dorsoventral symmetry? I must admit I don't know either since both mollusks groups occur very early from Kambrium and both occur in Canberra's Silurian mudstone as far as I know (for instance Woolshed creek fossil bed, Majura valley).

Bivalvia (class) fossil

jonvanbeest wrote:

26 Apr 2025

I've recorded this observation of what I believe to be a stone arrangement made by aboriginal people. Is there a category for indigenous cultural evidence that I could have recorded it under that perhaps I've missed?

Unverified Fossil / Geological Feature

SimoneC wrote:

15 Jan 2022

Thanks Michael I will do a bit of investigation there

Fenestella ( genus) (Bryozoan)

Fossils & Geological Features

Fossils & Geological Features

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