Well not very long if 200ft underground.
diplodocus was long
they can go pretty long without food but not to long without water
Argentinosaurus was the biggest hervivorous dinosaur that has a long neck.
Lesothosaurus was a dinosaur that lived in what is now South Africa. It was a 3.3 foot long herbivorous dinosaur.
Gobblersaurus
Sexual.
This depends on which long-necked dinosaur you are talking about. Heights varied between species.
Archaeornithomimus is an 11 ft long omnivorous dinosaur; so it ate some meat. Another omnivorous dinosaur was Citipati, and it was 9 ft long.
The largest dinosaur is Amphicoelias, at 200 ft long.
When it doesn't have any food and when it doesn't go with out any pieces of food and when it doesn't have any good food to eat how long is the long of the long long family
No, because dinosaur bones called fossils are the skeleton of a dinosaur. The skeleton is there because all dinosaurs are extinct.
There were a number of long-necked dinosaurs. One was the brontosaurus.