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Originally posted by Skada
They look like eggs to me, but eggs from what?
I never heard of sex rocks before, do you mean fossilized testicles? Don't think those could get fossilized unless buried in ash or something.
A concretion is a hard, compact mass of sedimentary rock formed by the precipitation of mineral cement within the spaces between the sediment grains. Concretions are often ovoid or spherical in shape, although irregular shapes also occur. The word 'concretion' is derived from the Latin con meaning 'together' and crescere meaning 'to grow'. Concretions form within layers of sedimentary strata that have already been deposited. They usually form early in the burial history of the sediment, before the rest of the sediment is hardened into rock. This concretionary cement often makes the concretion harder and more resistant to weathering than the host stratum
Originally posted by isyeye
The round ones look like concreations....
...the longer one may be a crinoid stem, but I can't tell for sure without looking at the end with better detail.
I'm in KY too, and I have more than 10,000 fossils from the area.edit on 9-11-2012 by isyeye because: (no reason given)
Originally posted by isyeye
The round ones look like concreations....
...the longer one may be a crinoid stem, but I can't tell for sure without looking at the end with better detail.
I'm in KY too, and I have more than 10,000 fossils from the area.edit on 9-11-2012 by isyeye because: (no reason given)
Originally posted by AFewGoodWomen
Originally posted by isyeye
The round ones look like concreations....
...the longer one may be a crinoid stem, but I can't tell for sure without looking at the end with better detail.
I'm in KY too, and I have more than 10,000 fossils from the area.edit on 9-11-2012 by isyeye because: (no reason given)
I concur, isyeye. These are animal or human remains for sure...looks like calcified gall stones to me.