R0b Posted November 9, 2021 Share Posted November 9, 2021 Not my find but noticed this one on Reddit. What do you think. Seems to be too much coincidence. My best guess a real skull covered in some deposits either marine or cave in origin. 1 Link to comment Share on other sites More sharing options...
caterpillar Posted November 9, 2021 Share Posted November 9, 2021 Sorry but no skull and no bone 3 http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
Ludwigia Posted November 9, 2021 Share Posted November 9, 2021 I agree with Caterpiller, but I'd be interested to find out what the composition of this if someone here or on Reddit has the answer. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
R0b Posted November 9, 2021 Author Share Posted November 9, 2021 1 hour ago, caterpillar said: Sorry but no skull and no bone No need to be sorry, as it’s not mine and I am just curious as it actually looks like a skull without a lot of fantasy. How to rule out it hasn’t gone through a process like https://en.wikipedia.org/wiki/Altamura_Man Link to comment Share on other sites More sharing options...
RJB Posted November 9, 2021 Share Posted November 9, 2021 Looks to me where the places are more white seems to be where someone broke of certain chunks to make it look more like a skull? RB 1 Link to comment Share on other sites More sharing options...
R0b Posted November 9, 2021 Author Share Posted November 9, 2021 9 hours ago, Ludwigia said: I agree with Caterpiller, but I'd be interested to find out what the composition of this if someone here or on Reddit has the answer. Most serious replies say corral. With that in mind you can see a rock at the centre where the coral grew on. Still curious how such a symmetrical shape is formed (enhanced?). 1 Link to comment Share on other sites More sharing options...
Al Dente Posted November 9, 2021 Share Posted November 9, 2021 Where was this found? It looks very much like the geodized crinoids that are found in Indiana and Illinois. Link to comment Share on other sites More sharing options...
R0b Posted November 9, 2021 Author Share Posted November 9, 2021 (edited) 50 minutes ago, Al Dente said: Where was this found? It looks very much like the geodized crinoids that are found in Indiana and Illinois. On a farm in Kentucky (asked for more accurate information). But I see the resemblance. Edited November 9, 2021 by R0b Link to comment Share on other sites More sharing options...
Harry Pristis Posted November 9, 2021 Share Posted November 9, 2021 I think it is a "geode" in the broad sense of the pseudomorphs we've seen from other Mississippian Age limestone. It is composed of "dirty" SiO2. Here's one from Indiana with interesting, if unidentifiable, shape. These geodiferous shales and thin limestones belong to the Knobstone division of the lower Carboniferous or Mississippian period. Their strata cap the rounded hills of Indiana and Kentucky, encircling that portion of these two States immediately underlaid by Devonian and Silurian rocks. Southern Indiana, in the vicinity of New Albany, and the " Knob " region of Kentucky, extending south Sketch showing Occurrence of Geodes in Knobstone Shales. and then southeast of Louisville, give many exposures of the Knobstone group. . . . of most interest to the paleontologist is unquestionably that bearing upon the replacement of fossils. Shells and other fossil forms entirely replaced by silica are of common occurrence in the cherty or siliceous debris resulting from the waste of limestones. These siliceous pseudomorphs, as they are called, often preserve the original shape and markings of the fossil form ---Ray S. Bassler, US National Museum 4 http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
R0b Posted November 10, 2021 Author Share Posted November 10, 2021 Solved Link to comment Share on other sites More sharing options...
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