DAg Posted November 28, 2016 Share Posted November 28, 2016 Hi, We have located this fossil in our home marble floor - the marble variety is Crema Marfil (origin Spain). Is this a Trilobite? Link to comment Share on other sites More sharing options...
Fossildude19 Posted November 28, 2016 Share Posted November 28, 2016 Hello, and Welcome to the Forum. I'm pretty sure it isn't a trilobite. It looks more like a coral in cross section, to me. Maybe some others will weigh in. Regards, Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
TqB Posted November 28, 2016 Share Posted November 28, 2016 I agree it's a coral, next to a gastropod section. Tarquin Link to comment Share on other sites More sharing options...
FossilDudeCO Posted November 28, 2016 Share Posted November 28, 2016 I could be wrong here, but Marble is a metamorphic rock, so it should not contain any fossils. If your flooring is made of a limestone material (which marble metamorphosis from) you could potentially have a fossil hidden in there! Link to comment Share on other sites More sharing options...
TqB Posted November 28, 2016 Share Posted November 28, 2016 The term "marble" is used loosely in the trade. I agree there's little or no metamorphism to that piece. Tarquin Link to comment Share on other sites More sharing options...
oilshale Posted November 28, 2016 Share Posted November 28, 2016 Crema Marfil from Monte Coto is an Eocene limestone. Much too young for trilobites. I agree, corals and gastropodes Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC). Link to comment Share on other sites More sharing options...
fifbrindacier Posted November 29, 2016 Share Posted November 29, 2016 I also see a cross section of gastropod and of coral. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
DAg Posted November 29, 2016 Author Share Posted November 29, 2016 Thanks for all your replies! Is there a way to estimate how old these sections may be? On the question of whether this is a marble and on the possibility of presence of fossils, here's what the internet threw up: "Crema Marfil Commercial: this is a light-beige yellowish coloured marble, with uniform background. It presents several irregular vein, some calcite and may present strong signs of fossils. This is the commercial type of the Crema Marfil, with large supply but also demand." Link to comment Share on other sites More sharing options...
doushantuo Posted November 29, 2016 Share Posted November 29, 2016 Crema marfil is a "strongly consolidated limestone".It is probaly Paleogene(eocene?),as nummulites* are found in it . *In the generic sense of the word,hence not italicized Geological details are scant to nonexistent,BTW. A very large quarry seems to be located in Spain. Link to comment Share on other sites More sharing options...
abyssunder Posted November 29, 2016 Share Posted November 29, 2016 Nice scleractinian coral ! " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
erose Posted November 29, 2016 Share Posted November 29, 2016 Marble often represents very low grade metamorphism so although the limestone gets a bit cooked it doesn't obliterate the fossils. Sometimes we see fossils that were stretched or deformed in very hard shales on their way to becoming slate. Link to comment Share on other sites More sharing options...
fifbrindacier Posted November 30, 2016 Share Posted November 30, 2016 In a river near my house i found cross-sections of rudists in stones that look like a marble of the area. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
tmaier Posted November 30, 2016 Share Posted November 30, 2016 fifbrindacier, if these are decent sized stones, you could take some to a local stone or tile worker and ask them to cut one in half. It would only take a couple minutes, and they would likely buzz it through the masonary saw for free. It will look rough because it isn't polished, but when wet you might see a lot of detail. Then you might find somebody to polish it for free. =-) Link to comment Share on other sites More sharing options...
DAg Posted December 1, 2016 Author Share Posted December 1, 2016 This discussion has been most informative! I am attaching one more picture from the same marble floor. Wondering if this is just a snail shell fossil or a backbone?? Link to comment Share on other sites More sharing options...
Fossildude19 Posted December 1, 2016 Share Posted December 1, 2016 If you are referring to this item: I think a high spired snail. If it is indeed Eocene in age. If it was older, I would say orthocone cephalopod. Not a vertebral column. Regards, Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Guguita2104 Posted December 1, 2016 Share Posted December 1, 2016 Hi! I think that one is a gastropod,as well. Regards, Link to comment Share on other sites More sharing options...
fifbrindacier Posted December 3, 2016 Share Posted December 3, 2016 On 30 novembre 2016 at 2:39 PM, tmaier said: fifbrindacier, if these are decent sized stones, you could take some to a local stone or tile worker and ask them to cut one in half. It would only take a couple minutes, and they would likely buzz it through the masonary saw for free. It will look rough because it isn't polished, but when wet you might see a lot of detail. Then you might find somebody to polish it for free. =-) That's what i did, i went to my club to cut one and then i polished one part, i had to glue the other part because it had broken. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
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