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The River Monster, Spirosaurus

23 September 2020

Sent in by Gary. At www.dailymail.co.uk/sciencetech/article-8757271/ … Spirosaurus is known from its teeth as much as from its bones. It is reputed to be the larges carnivorous dinosaur – up to 50 feet in length. A trove of teeth has recently been found in the Sahara Desert of all places, in what is thought to have been an ancient river bed. Only a limited number of bones have been unearthed but the discovery of a fossil tail in the Kem Kem river bed in Morocco seems to show Spirosaurus was semi aquatic, hunting in the water. Hundreds of teeth have been found in the same river bed.

Gary also sent in the link www.dailymail.co.uk/sciencetech/article-8739977/ … a new extinction event that allowed dinosaurs to flourish in the aftermath.

At https://phys.org/news/2020-09-newly-described-fossils-reveal-ancient-zea… … newly discovered fossils reveal an ancient origin for penguins living in New Zealand millions of years ago. The fossils, it is thought, go back to Zealandia, the huge land mass now mostly submerged. Zealandia was an incubator of penguin diversity it would seem, where the first penguins may have evolved, thrived, and dispersed throughout the southern hemisphere. Interesting idea.

At https://phys.org/news/2020-09-genetic-horse-domestication-anatolia.html … I suppose most people would be surprised that it was thought the domesticated horse first occurred in what is now modern Turkey, and spread from there. If you didn't you won't be surprised to find out that domestication did not begin in Anatolia. Apparently, we are now back to the steppe scenario.

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