Brian Switek 2011 "Written in Stone" Icon books p.169:
"... ribs of Indohyus and Pakicetus show just this kind of bone
H.erectus s.s. fossils are found in coastal sediments, amid shellfish,corals, barnacles etc. Their sekeletons were pachyosteosclerotic. They
Is there still somebody who doubts they were predominantlyshallow-diving mammals?
Brian Switek 2011 "Written in Stone" Icon books p.169:become more brittle. Running on land with heavy, brittle bones would have been more energetically expensive and even risky, thus providing another reason for these animals to spend more time in the water ..."
"... ribs of Indohyus and Pakicetus show just this kind of bone restructuring. The development of bone ballast preceded other aquatic adaptations, but it had a trade-off. As the bones in the limbs and ribs of these animals became denser they would have
H.erectus s.s. fossils are found in coastal sediments, amid shellfish, corals, barnacles etc. Their sekeletons were pachyosteosclerotic. They used stone tools. They colonised oversea islands. Their brains were twice as large as those ofaustralopiths & apes. They had ear exostoses. Their teeth showed micro-wear caused by sand & processing of molluscs. They made shell-engravings. ...
Is there still somebody who doubts they were predominantly shallow-diving mammals?
Sysop: | Keyop |
---|---|
Location: | Huddersfield, West Yorkshire, UK |
Users: | 302 |
Nodes: | 16 (0 / 16) |
Uptime: | 96:14:28 |
Calls: | 6,764 |
Calls today: | 2 |
Files: | 12,295 |
Messages: | 5,376,361 |
Posted today: | 1 |