プテロダウストロ Pterodaustro オーストラリア恐竜大陸
Pterosauria / Pterodactyloidea / Family: Pterodaustridae
/ First Described: 1876 / Found: South America: Argentina, Chile / Wingspan: 1.3m
/ Weight: 8 kg / Food: Pond life / Young: Eggs / Lived: Early Cretaceous 140-125 million years ago
Pterodaustro was a long-necked, short-tailed pterodactyl with a fairly long head and narrow jaws that curved upwards at the front. The lower jaw was quite strange and had a dense filter on either side. The filters were made up of over a thousand long, 'soft' teeth that resembled the bristles on a brush.
Pterodaustro was a filter-feeder that searched for food in shallow water. It was the Cretaceous equivalent of a flamingo, using the lower jaw as a filter basket into which it probably scooped helpings of water rich in pond life. The water was then forced out through the filter, leaving the tasty morsels behind. Small teeth in the upper and the lower jaws were used to crush the food into smaller pieces.
Pterodaustro was a strong flyer that could take off and land from ground level. It probably fed while on all fours but it would have needed to raise its wings out of the water to take off.