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"Abnormal or Extraordinary Lizard"
It may have eaten conifers, gingkos, seed ferns, cycads, bennettitaleans, ferns, club mosses, and horsetails.
WHEN QUAESITOSAURUS LIVED
Quaesitosaurus lived during the late Cretaceous Period, roughly 85-80 million years ago.
Quaesitosaurus (meaning "abnormal or extraordinary lizard") was named by Kurzanov and Bannikov in 1983.
FOSSILS AND HABITAT
Quaesitosaurus is known only from a partial skull found in the southeastern Gobi desert, Mongolia. This environment was semi-arid during the Mesozoic Era.
WHY WAS THE NECK SO LONG?
Many sauropods, like Quaesitosaurus, held their neck more or less horizontally (parallel to the ground). The long neck may have been used to poke into forests to get foliage that was otherwise unavailable to the huge, lumbering varieties of sauropods who could not venture into forests because of their size. Alternatively, the long neck may have enabled this sauropod to eat soft pteridophytes (horsetails, club mosses, and ferns). These soft-leaved plants live in wet areas, where sauropods couldn't venture, but perhaps the sauropod could stand on firm ground and browse in nearby wetlands.
Quaesitosaurus may have travelled in herds and may have migrated when they depleted their local food supply. Quaesitosaurus may have hatched from eggs, like other sauropods. Sauropod eggs have been found in a linear pattern and not in nests; presumably the eggs were laid as the animal was walking. It is thought that sauropods did not take care of their eggs. Sauropod life spans may have been on the order of 100 years.
It used to be thought that the sauropods (like Quaesitosaurus, Diplodocus, Brachiosaurus and Apatosaurus) and the stegosaurid Stegosaurus had a second brain. Paleontologists now think that what they thought was a second brain was just an enlargement in the spinal cord in the hip area. This enlargement was larger than the animal's tiny brain.
Quaesitosaurus was a sauropod, whose intelligence (as measured by its relative brain to body weight, or EQ) was the among the lowest of the dinosaurs.
A Quaesitosaurus printout
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