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Post by another specialist on Mar 5, 2006 22:09:38 GMT
I have a picture! I need only find it, soon I´ll post here. Can't wait to see it mate |
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Post by RSN on Mar 5, 2006 22:34:58 GMT
I´m sorry because I think I lost the picture.
But I received it from a Portuguese friend, so I´ll ask him the picture again when I meet he again.
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Post by RSN on Mar 5, 2006 22:43:44 GMT
Anyway, I´m sure I had the picture. --- Lemerle's HippopotamusHippopotamus lemerlei One of two species of small hippos native to Madagascar, the remains of H. lemerlei have been found in many parts of the island. About half to two-thirds the size of living Hippopotamus amphibius from East Africa, Lemerle's hippo seems to have been adapted to an amphibious lifestyle much like that of its larger mainland relative. Another genus, the Malagasy hippo (H. madagascariensis), seems to have had a restricted range in the southern part of the island--and was possibly terrestrial. Although both species are presumed to have disappeared before AD 1500, the hippos of Madagascar continue to live in oral traditions of the Malagasy people as the mysterious lalomena. Large assemblages of skeletons are known from some sites, but the only evidence of human interaction consists of a few examples of butchered long bones. See also: MacPhee, R.D.E., and D.A. Burney, 1991. Dating of modified femora of extinct dwarf Hippopotamus from southern Madagascar: Implications for constraining human colonization and vertebrate extinction events. J. Archeol. Sci. 18:695-706. Source: www.amnh.org/science/biodiversity/extinction/Resources/Bestiary/Artiodactyla2.html |
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Post by another specialist on Mar 5, 2006 23:48:14 GMT
I´m sorry because I think I lost the picture. But I received it from a Portuguese friend, so I´ll ask him the picture again when I meet he again. hopefully you'll find it or be able to get it from friend |
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Post by another specialist on Jan 31, 2007 17:48:42 GMT
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Post by RSN on Feb 18, 2007 0:30:18 GMT
I'm not sure, but I think this is the image I've mentioned before. |
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Post by another specialist on Feb 18, 2007 9:09:20 GMT
It has not been mentioned on this thread but sordes mentioned it on one of the extinct lemur threads.
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Post by RSN on Feb 18, 2007 22:53:43 GMT
This is the post I mean, reply #14 of this topic. I have a picture! I need only find it, soon I´ll post here. And this is the mentioned image:  |
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Post by another specialist on Feb 19, 2007 7:31:59 GMT
Hippopotamus madagascariensis - Madagascar Hippopotamus Choeropsis madagascariensis - Madagascar Pygmy Hippopotamus Was there 2 species on Madagascar? As wikipedia page below mentions the above 2 names, en.wikipedia.org/wiki/Hippopotamidae |
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Post by sordes on Feb 21, 2007 16:22:21 GMT
I did read this also today in a book and wanted to ask if anybody know if there were not only descendents of normal hippos on Madagascar, but also of pygmy hippos.
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Post by another specialist on Feb 21, 2007 16:37:21 GMT
We will see if anyone has any further info. Could be very interesting to find out.
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Post by Carlos on Feb 21, 2007 20:12:25 GMT
We will see if anyone has any further info. Could be very interesting to find out. You gave the answer already Frank (your post # 11 in this thread). There were three Hippo species in Madagascar from three colonization events, all of them smaller in various degrees than H. amphibius. Two amphibian Hippopotamus ( H. laloumena and H. lemerlei) and one dwarfed, more terrestrial, Hexaprotodon (Choreopsis) madagascariensis. |
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Post by another specialist on Feb 21, 2007 20:16:18 GMT
Thanks Carlos for reminding me - I forgot that i posted that
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Post by sordes on Feb 21, 2007 22:12:47 GMT
Was Hexaprotodon/Choreopsis madagascariensis now identical with Hippopotamus madagascariensis, and was it a small terrestrial normal hippopotamus or a real pygmy hippo?
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Post by another specialist on Feb 21, 2007 23:12:58 GMT
Extinct Malagasy Hippopotamuses Stuenes (1989) showed that two kinds of dwarf hippopotamuses (Hippopotamus lemerlei and H. madagascariensis) survived late into the Quaternary on Madagascar, and Faure & Guerin (1990) have described another and larger species, H. laloumena. H. lemerlei occurred on the island at least until 980 + 200 yrs. B. P., but neither the H. madagascariensis or H. laloumena material has been dated, though both are believed to be Holocene in age. The latter species is known only from a lower jaw and limb bones obtained near Mananjary on the east coast. It was largest of the three species but was not as big as H. amphibius, which it otherwise appears to have resembled closely. H. lemerlei was somewhat larger than H. madagascariensis and differed from it in that the skulls of adults were markedly (presumably sexually) dimorphic in size. These two smaller hippos also appear to have differed in their ecology. Like H. laloumena, H. lemerlei (Plate ///) resembled a small H. amphibius and probably had similar habits. Its remains have been found mostly in the coastal lowlands. H. madagascariensis was a more terrestrial species, subfossils of which have been located in the central highlands. Recently, Harris (1991) has reassessed the systematics of the two smaller hippos and concluded that the more terrestrial species, madagascariensis, should be placed in the genus Hexaprotodon. Inferences to be drawn are firstly that each of the surviving species of hippos had close relatives on Madagascar, and secondly that Madagascar had been colonised three times by hippopotamuses! Early human colonisation of Madagascar, which occurred c. 1,500 yrs BP, is implicated in their extinction, though climatic change may also have been a factor. moray.ml.duke.edu/projects/hippos/SSC/4-1HippoTaxonomy.doc |
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Post by sordes on Feb 22, 2007 14:16:19 GMT
Thanky you very much, but it still doen´t clearly show if the terrestrial malagasy hippo was a real pygmy hippo, or perhaps a normal hippo, which developed a more terrestrial way of life.
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Post by another specialist on Feb 25, 2007 9:10:35 GMT
Thanky you very much, but it still doen´t clearly show if the terrestrial malagasy hippo was a real pygmy hippo, or perhaps a normal hippo, which developed a more terrestrial way of life. We will see if anyone has any further info. Could be very interesting to find out. You gave the answer already Frank (your post # 11 in this thread). There were three Hippo species in Madagascar from three colonization events, all of them smaller in various degrees than H. amphibius. Two amphibian Hippopotamus ( H. laloumena and H. lemerlei) and one dwarfed, more terrestrial, Hexaprotodon (Choreopsis) madagascariensis. As the above states its classified as one dwarfed, more terrestrial, Hexaprotodon (Choreopsis) madagascariensis wihile the other two are classed as Hippopotamus |
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Post by another specialist on Feb 25, 2007 9:14:20 GMT
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Post by sordes on Feb 25, 2007 12:28:29 GMT
But when Hippopotamus madagascariensis was according to anatomical and genetic aspects a descendent of Hippopotamus amphibius, how could it be more related to the pygmy hippo?
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Post by sordes on Feb 25, 2007 14:01:21 GMT
There would be a very simple way to answer this question. In contrast to hippopotamus, hexaprotodon has only one pair of incisors in the lower jae. So if Hippopotamus/Hexaprotodon madagascariensis had more than one pair of lower incisors, it was most probably no descenden of Hexaprotodon liberiensis.
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