Dinosaur news

[Spalea]

" The Joy of T. Rex: How Dinosaurs Had Sex (very tricky, when you weigh four tonnes and the most crucial part is 12 feet long) ?

Palaeontologists answer many tricky questions about dinosaurs - but perhaps the most interesting is how did 30-ton animals larger than four-storey buildings have sex.
'All dinosaurs used the same basic position to mate,' said Dr Beverly Halstead, an English researcher who was one of the first to tackle the subject. 'Mounting from the rear, he put his forelimbs on her shoulders, lifting one hind limb across her back and twisting his tail under hers.'
Scientific illustrators have also attempted to capture the intriguing rituals of the huge beasts - including an illustrator who worked with Dr Halstead on a magazine article in 1988.
The physical challenges involved must have been formidable.
The penis of a tyrannosaur is estimated to be around 12 feet long.
Kristi Curry Rogers, Assistant Professor of Biology and Geology at Macalester College in Minnesota, told the Discovery Channel.
'The most likely position to have intercourse is for the male behind the female, and on top of her, and from behind, any other position is unfathomable.’
'I don't think there's much doubt about that,' Dr. Gregory M. Erickson, an evolutionary biologist at Florida State University, told The Huffington Post 'It must have been a hell of a thing to see.'
Some experts have questioned this line of thinking and suggested that dinosaurs romped in water.
Biologist Stuart Landry believes that big dinosaurs would just fall over on land and would have needed water to provide support.
- Your thoughts? "

Very delicate question, isn't it ?
The only one possible position described above seems too categorical, doesn't sum up all.
Particulary case: what about the stegosaurus' mating ? Or parasaurolophus' one ? Or any dinosaurs with an important dorsal crest ? The Spinosaurus isn't concerned since we know it would be in fact an entirely aquatic predator. But what about the others ? Were stegosaurids much more flexible with their pelvis than we thought ?
Perhaps thank of this (pelvis flexibility) and a very long penis. Just imagine a couple ankylosaurus mating... I fear we can discust about that during a long time without been sure of any version.
Not easyer than the angels' sex... Reply