ERTH 2401 Chapter Notes - Chapter 5: Barosaurus, Brachiosauridae, Diplodocid
4 Nov 2016
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Did the nostrils act as snorkel: argument against: Air pressure: animals breathe air at 1atm of pressure, in water pressure increase by 1atm every 9. 8m and it is thought that the lungs of the sauropods would have collapsed with increased pressure therefore not their habitat. Air sacs in bones would make sauropods float like corks. Imprint of tail in the ground see the stance imprinted on the ground. Are their heads/necks always straight up or is the neck more perpendicular to the body while feeding and grazing the blood pressure and forces of gravity would not be so strong than. Oxygen exchange: oxygen has to be transported to the lungs through the wind pipe (trachea) for exchange with carbon dioxide. I(cid:374) (cid:373)a(cid:373)(cid:373)al"s o(cid:454)(cid:455)ge(cid:374) e(cid:454)(cid:272)ha(cid:374)ge is (cid:374)ot ver(cid:455) effi(cid:272)ie(cid:374)t, o(cid:374)l(cid:455) 20% of air (cid:373)akes it to the lungs for exchange bidirectional airflow air remains in the trachea and does(cid:374)"t (cid:373)ake it to the (cid:271)rai(cid:374)
