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Alex Buchanan posted an image in the group
What is it? from the myFOSSIL app 4 years ago 4 years ago4 years agoLook like some eggs, about 1 to 1.5mm size, in a fossil full of trilobites and Rugose corals and other bits and pieces? the rock / area it came from dates about 410 million years ago #fossil
That’s cool
Hey @alex-buchanan! Looks like you have an assemblage of different sections of trilobite anatomy or the external molds of crinoids.
According to Rockd, looks like you are collecting in the Yass Formation which is from the Upper Silurian Period and between Wenlock and Ludlow Ages. Hattons Corner Group is also a possibility.
Ah! Thank you! You just helped identify some other fossils I found I the area (crinoid stalks / columns, I believe). I’ll post separately
And does that mean the “eggs” may actually be crinoid poo? From Wikipedia: “Faecal matter is formed into large, mucous-cemented pellets which fall onto the tegmen and thence the substrate”
Or more likely to be the calyx of a crinoid? Thanks for your help!