Monday, March 13, 2006

flightless birds that filled the niche after the demise of the dinosaur

Gastornis geiselensis was discovered at the Gieseltal site in Germany and Northern America. They were meat eaters, scavenges and hunters. they were approximately 1.75m tall and were considered one of the largests animals of there time. They had large beaks for crushing bones and nuts aswell as a means of sexual display. Due to there size they were considered ambush hunters and lived in thick forests, and were considered the top predators of the Eocene time period. In Northern America the same bird occured called Diatryma , however it was taller (2m). there closests relatives were the Rallidae family, eg moorhens.

construction of power point presentation.
research fossil records of organism
were it was found and the difference in various species
who found the fossil and who named it.
taxonomic classification
research of other fossilized bones from the same era.
research territoriality or organism.


  • You have made some effort here - this was a little more difficult. We have discussed your proposal and this could include the earliest "bird" - Archaeopteryx and is evidence that birds evolved from dinosaurs and is the most primitive known bird.

    Possibly you could start with Mesozoic birds such as Confuciusornithidae, Enantiornithes, Ichthyornis, and Hesperornithiformes, a group of flightless divers resembling grebes and loons.

    Modern birds are classified in Neornithes, which are divided into the Paleognathae and Neognathae. The paleognaths include the tinamous (found only in Central and South America) and the ratites. The ratites are large and flightless (ostriches, cassowaries, kiwis and emus). Ratites are probably an artificial grouping of birds. They have either independently lost their ability to fly or have converged into current forms from a flightless ancestor that is more directly related to the dinosaurs than the other modern birds.

    To proceed I suggest you use Wikipedia (http://en.wikipedia.org/wiki/Category:Prehistoric_birds) - and then go through the list and do independent searches on these plus what Wikipedia has to provide.

    By Anonymous Rich, at Friday, March 17, 2006 10:52:00 pm  

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