New Members returnofthemammoth Posted September 20, 2020 New Members Share Posted September 20, 2020 Hi all, In the 80's my uncle took a horn from an extinct ancient rhino from Indonesia. It is definately a fossil, it is like stone. And quite heavy, 3.5 kg. (The ruler is in cm) I would like to know from what kind of rhino specie it is. Has anybody an idea? Thank you very much! Link to comment Share on other sites More sharing options...
Randyw Posted September 20, 2020 Share Posted September 20, 2020 I’m sorry to say this but I believe that’s just a stone. Rhinos horns are made of keratin and don’t fossilize. The only known ancient rhino horns are ones that have been Found frozen in the permafrost. Rhinos don’t have a bony horn core like other ancient animals... 8 Link to comment Share on other sites More sharing options...
BellamyBlake Posted September 20, 2020 Share Posted September 20, 2020 Sadly, it looks like stone Link to comment Share on other sites More sharing options...
LordTrilobite Posted September 20, 2020 Share Posted September 20, 2020 Rhino horns are made of keratin. There is no bone in a rhino horn at all. Keratin rarely fossilizes because it's much softer than bone. This looks like just a rock. Olof Moleman AKA Lord Trilobite Link to comment Share on other sites More sharing options...
abyssunder Posted September 20, 2020 Share Posted September 20, 2020 Welcome to the forum! The missing parts may be on help, but they are not there, at least as I see in my mind. " 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...
PrehistoricWonders Posted September 20, 2020 Share Posted September 20, 2020 Yeah, sorry, not a horn. Link to comment Share on other sites More sharing options...
Opabinia Blues Posted September 21, 2020 Share Posted September 21, 2020 Indeed, it’s just a normal rock, not a fossil at all. Rhinoceros horn rarely, if ever, fossilizes. “The worse the country, the more tortured it is by water and wind, the more broken and carved, the more it attracts fossil hunters, who depend on the planet to open itself to us. We can only scratch away at what natural forced have brought to the surface.” - Jack Horner Link to comment Share on other sites More sharing options...
New Members returnofthemammoth Posted September 21, 2020 Author New Members Share Posted September 21, 2020 Okay thank you for your reactions! Link to comment Share on other sites More sharing options...
Mahnmut Posted September 21, 2020 Share Posted September 21, 2020 Hi, Although this is clearly no Rhino, I wonder if the dark "crust" may be fragments of something fossil? Hard to see on the fotos. The horn-shape looks quite regular but not like a fossil, rather like a polished artifact. Could be antique, could be 80ies fake Rhino, maybe containing parts of some other fossil. I have seen a monkey skull carved out of fossil coral bought as "fossil monkey skull", funnily enough by my uncle, dont remember where in Asia (I only saw it at my uncles) Interesting souvenier from another time anyway. Best Regards, J Try to learn something about everything and everything about something Thomas Henry Huxley Link to comment Share on other sites More sharing options...
Shellseeker Posted September 22, 2020 Share Posted September 22, 2020 On 9/20/2020 at 2:00 PM, returnofthemammoth said: I would like to know from what kind of rhino specie it is. Has anybody an idea? Thank you very much! While the Rhinos here in Florida never had a horn, they did have some rather impressive incisors modified to be tusks... This from Teleoceras proterum, 10 mya, Florida Miocene 2 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
pachy-pleuro-whatnot-odon Posted September 22, 2020 Share Posted September 22, 2020 Although I'd agree that the piece under discussion here is not a fossil horn - though I think it could be a horn core of something or another (bovine?), as there does seem to be a more porous area at the base - I just wanted to point out that while there horns of true rhinoceroses are made up of keratin (same material as hair and nails), there have been animals very much like rhinoceros in appearance. Arsinoitherium, for example had two bone horns on its snout, which were probably covered in keratin. Now, Arsinoitherium comes out of Egypt and, therefore, would not likely be a match. But, when answering a question of a nature as OP's I think we should be careful in distinguishing between what scientifically are considered rhinoceroses and what might colloquially labelled as such... 1 'There's nothing like millions of years of really frustrating trial and error to give a species moral fibre and, in some cases, backbone' -- Terry Pratchett Link to comment Share on other sites More sharing options...
sjaak Posted September 23, 2020 Share Posted September 23, 2020 I think it’s a fossilized bone that was polished and carved into the shape of a horn. I think I can see some bone structure and also the brown outer layer fits with (cortex) bone. I have seen this before with fossils from Indonesia. Including an “homo erectus” skull carved out of a fossil elephant femur. 1 Link to comment Share on other sites More sharing options...
Harry Pristis Posted September 24, 2020 Share Posted September 24, 2020 The pointy end doesn't have a bone shape of any sort. AND, the pointy end doesn't show any trabecular bone after putative significant grinding. I submit that no bone I can think of would have thick enough cortex to allow so much grinding without breaking through to the trabecular bone. Not elephant, not water buffalo, nothing. 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...
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