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January 7, 2009

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Shark Teeth

Alopias grandis...

Alopias grandis

2/9/2003 1:05:58 PM

legacyForum

725 posts

Alopias grandis

Alopias grandis, We all know how it looks but there's not a lot of research done about thesz teeth (well, I don't find a lot of information). We discussed these teeth on another forum & here are some theories : The teeth are found in the USA, Malta and maybe others location I don't know yet. Some say several characteristics suggest that they are upper lateral teeth of I.hastalis (or ancestral to both C. planus and C. escheri) or even Paratodus laterals but personally I never found a hastalis/benedeni's looking like A. grandis here in Belgium (and you can find a lot of hastalis teeth here...), The 'rtpical' A. grandis teeth look a lot like BIG alopias teeth, we can't deny that. The typical ones are non-serrated, some say there're serrated (Alopias grandis var. serrartus) ones and you can find some pics on the net but they look a bit differently in my opinion. The typical ones look like jaw positions rather than represent random deformities so that excludes path. teeth. In Leriche, 1942 the tooth is still named 'Alopecias grandis nov. sp.' but there's not a lot more info in this publication. In 1940 'Alopecias gigas nov. sp.' (Prossy) was another name for it (mentioned as miocene teeth from both sides of the Atlantic) look here for pics of the Leriche publication : http://users.skynet.be/bk284998/forum/feb2003/alopiasg1.JPG and here : http://users.skynet.be/bk284998/forum/feb2003/alopiasg2.JPG Some ithers think it can be a new genus like Trigonotodus sp (found in Russia) It is somewhat puzzling how little the heavywieght reserchers have talked on these teeth. Somebody has other theories or publications about these teeth ? If you find teeth in situ this can be very interesting too (age...) All reactions welcome... Kris

10/13/2003 9:32:47 PM

legacyForum

725 posts

Re: Alopias grandis

hot subject here Kris. although not offically a genus no one seems to deny there might be scope for a study. most probably due to lack of specimens is the first reason and sometimes academic ppl need an associated find before a study is started. Unfortunately who knows if there will ever be one.

10/16/2003 9:21:36 PM

legacyForum

725 posts

Re: Alopias grandis

Said that,i still think there should be a study as teeth although quite rare are still found from localites you mentioned.All we have till now is the Leriche paper and some comments here and there.

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