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Rahonavis70m — Shark Week - Striatolamia macrota
#sandtiger #sandtigershark #striatolamia #striatolamiamacrota #sharkweek2018
Published: 2018-07-25 22:08:34 +0000 UTC; Views: 2181; Favourites: 47; Downloads: 0
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Description
Day 3 of Shark Week, and it’s time for a sand tiger. Sand tiger sharks did exceptionally well in the immediate wake of the K/Pg extinction, and many different species are known from the phosphates, including several species of the modern genera Carcharias and Odontaspis. Several extinct genera are known as well, amongst them Striatolamia, a genus characterised by the conspicuous striations on their teeth. It is generally believed that Striatolamia was a sand tiger shark, but some have suggested it to be a goblin shark, as its’ teeth show characteristics of both.Striatolamia macrota is a very widespread species that could reach up to 3 metres long, and has been found worldwide from the Palaeocene to the Eocene. In my sample, it was by far the most common single species; of the approx. 2000 specimens I studied, over 800 of them belonged to S. macrota. The sheer abundance of this sharks’ teeth in the phosphates suggests that they were a migratory species, arriving in the area annually in huge numbers to pup (which is supported by the huge size range of their teeth).
This definitely isn’t the first Striatolamia on DA, but it surprisingly appears to be the first one depicted as a sand tiger. Happy Shark Week!
Day Two here: www.deviantart.com/rahonavis70…
Day Four here: www.deviantart.com/rahonavis70…
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Comments: 4
Nice to see another reconstruction! To be honest, if I was making another Striatolamia reconstruction I would make it less Goblin-shark-like in the future, although it does seem to be close to Anomotodon. Reconstructing them is very hard when you only have the teeth to go on! Working on the shark teeth must have been nice! I collect them regularly from Barton-on-sea, although Jaekelotodus, Physogaleus and Abdounia are also common.
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Thanks, these sharks need more attention! Yeah I was playing it safe with this reconstruction but I really had no idea which way it would go. it's a real nightmare when all you have is teeth. It was great, really nice to see them up close. Jaekelotodus was in the sample I worked on as well, though only one or two specimens, same with Hypotodus. There were loads of Carcharias though. It must be great to be able to go up and find them for yourself.
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