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Sri-Lanka(n)/Ceylon Lion, Ceylon (Bengal) Tiger & Ceylon (Asiatic) Cheetah
Sri-Lanka(n)/Ceylon Lion, Ceylon (Bengal) Tiger & Ceylon (Asiatic) Cheetah
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Sri-Lanka(n)/Ceylon Lion, Ceylon (Bengal) Tiger & Ceylon (Asiatic) Cheetah
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@GuateGojira Regarding #10, #9, #8 posts,
Quote:Guate Gojira I'm not believing anything blindly, I just believe that tigers existed on that island for "now" until new complete fossils in good condition are discovered for advanced methods like comparative genetic analysis to reveal the truth. The analysis was just not advanced coz it is only based on specific characters, anatomical comparisons and C14 dating. I strongly believe there is no barrier to stop tigers and lions in presence of Land bridge to spread to that island when they can reach peninsular tip for now. Yes, not only them, everyone is not 100% correct or perfect. Quote:They base their conclusion because the size of the phalanx are of the same size than those of the "tigress of the Deccan", but how "large" is that particular tigress? There are other tiger phalanx that we can use to compare it? I will like to see a larger sample of leopards to make a comparison too, as the only large cat from the island is the leopard.They compared it with the leopard. They said it was one of the biggest specimens of Deccan tigress. *This image is copyright of its original author Quote:Also, the presence of the lion could be the most effective barrier of the tiger dispersal, not only for its numbers (pride of lions) but also for the habitat preferences. By the time, it was said that forest habitats occupied the subcontinent, and thus lion got extinct about 39000 years ago long before the tiger even came to India and colonized Subcontinent and island with its forest environment flourishing. The tiger arrival was favoured by its habitats and changing climate. Quote:I think that base an analysis in just a morphological analysis and with a very small sample of the only large cat that actually live in the island (only one leopard!) is very dangerous. I will prefer a DNA analysis, it will be much more efective and will clarify the situation once for all.I 100% agree and look forward for that to see things crystal clear but for "now", I believe this. Quote:By the way, what do you understand of this phrase: "While the Kuruwita and Ratnapura fossils show that lions and tigers were sympatric in this area, however, there is no evidence to suggest they were syntopic." Just because, the fossils of tiger found in India were only 12000 years old, doesnt mean that tiger arrived and occupied India by counting time with a wrist watch. It might have arrived since, the forests from east asia spread. It might have arrived before 25000 years intermediately between Lion extinction and asiatic lion arrival. who knows? we dont have a time machine to draw a distinct line on geological time scale. coz we found fossils only 12k old meand there might be fossils before that unearthed waiting to be discovered. may be or may not be discovered in future. Hence, they thought if Lion was not extinct in Lanka about 36k but may be prolonged that time and exist a bit longer than expected, then they might have coexisted and sympatric. Nothing is clear for as genetic analysis was not made as like they said, those fossils samples found are little in quantity and incomplete and are poor condition to do any research, hence they made suitable comparative analysis to come to a conclusion. Quote:I want to clarify, I am not against the idea that tigers do lived in Sri Lanka, for the contrary, I will like to see a better study in the single phalanx like DNA in order to get a better conclusion.I know that, you are not against tigers lived in lanka but you dont trust the method they did to do research for a conclusion  . In fact, I too look forward for furthur reseach and discovery of fossils about them to do genetic analysis tests. We are on same idea but for "now", you are not satisfied and me neither but I believe there were tigers and I dont see anything that stop that but needed enough information and evidence which may come in the future. That single phalanx said doesn't support any further tests coz it is in poor condition. We just need more complete fossils in good condition  .Quote: I am worried that most of the sources are Dereniyagala, some how I don't trusth him to much (I am biased toward Mazák in the perception of this person). About this, Ok but he is not that bad paleontologist, drawbacks like sudan tiger will be there for every researches, but if we put them aside and see the other side. They contribute great things to research field. Even Addition failed many times, but that wont be counted, only discovery is remembered. Paulus Edward Pieris Deraniyagala (1900–1976) was Sri Lankan paleontologist, zoologist, and artist. He was born in Colombo, the son of Sir Paul Edward Pieris, civil servant and scholar, and was educated at Trinity College, Cambridge, where he gained a BA in 1922 and an MA in 1923. He entered Harvard University for a year where he was awarded MA in 1924. He specialised in fauna and human fossils of the Indian subcontinent. From 1939 to 1963 he was the Director of the National Museum of Ceylon, and from 1961 to 1964 he was also the Dean of the Faculty of Arts at the Vidyodaya University. He described several fossils and proposed scientific names for species and subspecies, including the:
He served as President of the Ceylon Branch of the Royal Asiatic Society from 1952 to 1955. He was married to Prini Molamure; their son Siran Upendra Deraniyagala is also a famous scientist, specialising in archeology. Deraniyagala is commemorated in the scientific names of three species of Sri Lankan reptiles: Aspidura deraniyagalae, Lankascincus deraniyagalae, and Nessia deraniyagalai. https://en.wikipedia.org/wiki/Paulus_Edw...raniyagala Expansion may have been favored by the start of a warmer and less arid period in Africa 130,000–70,000 years ago. This “out-of-Africa event” would have occurred much later than the initial lion expansion through Eurasia based on fossils (∼500,000 years ago). It is likely that multiple lion expansions occurred in the Pleistocene, as occurred with humans. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2572142/ Thank You... |
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