There is an interesting set of problems concerning dinosaurs.

There are three basic problems:

1) The first concerns the estimated mass of Sauropods and the limit of the strength of biological materials to support the dinosaur’s mass.

2) The second concerns the size and mass of pterosaurs (flying or gliding dinosaurs) and the biological limits of wing strength and fundamental aeronautical limitations to support the mass of a pterosaur in flight, based on the maximum estimated flight speed of a pterosaur.

3) The third concerns the limits of insect size based on the efficiency of insect’s breathing mechanism (insects breathe through their skin, so the amount of oxygen that they can absorb is proportional to their surface area) the amount of oxygen at standard temperature and pressure in the atmosphere.

These writers provide scientific analysis to support the assertion that there is a set of logical problems concerning dinosaurs and then present a possible hypothesis to resolve the paradox.

The hypothesis which the writers propose to resolve this paradox is that the earth’s atmospheric pressure was much greater at the time of dinosaurs. But first before discussing the proposed solution to the paradox is there a paradox?

I would be interested in papers that do or do not support the writers' assertion that is a dinosaur paradox.

Logical Inconsistencies Concerning Dinosaurs?
http://mb-soft.com/public/dinosaur.html#legs

Paradox of Large Dinosaurs?
http://dinosaurtheory.com/big_dinosaur.html

Mysteries of the Dinosaur Epoch Cases Solved?
http://www.emse.fr/~yukna/dinosaurs/..._dinosaurs.php

Was the Atmospheric Pressure different During the Time of the Dinosaurs?
http://www.levenspiel.com/octave/dinosaurs.htm