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All modern day organisms have an ancestor in the Jurassic.
Identifying which fossil animals are the direct ancestors of any modern day animal is impossible since fossils don't preserve DNA.
However comparing the bones of fossil animals and those of modern day animals, family trees can be hypothesised.
With modern day animals their DNA can be compared to produce much more accurate results.
What else can I help you with?
What is the ancestor of the goldfish?
Goldfish originated from the Anjafish that lived mainly during the Jurassic period
What time period is Jurassic Park?
Jurassic Park was set in modern times and not a geological period...however the dinosaurs were from the Jurassic Period.
Which recently discovered dino was a tiny ancestor of T-Rex and lived 230 million years ago?
Guanlong in Jurassic period
Which dinosaur is probaly the most recent common ancestor of velociraptor and archaeopteryx?
Velociraptor was a droameosaurid while Archaeopteryx was an Ave. Velociraptor lived in the cretaceous period and Archaeopteryx in the Jurassic period. They both might be ancestors to birds but i think their common ancestor must have been a medium sized droaemeosaurid.
What was the chemical makeup of the atmosphere during the Jurassic period?
During the Jurassic period, the atmosphere was primarily composed of nitrogen, carbon dioxide, and oxygen, similar to the composition of the modern-day atmosphere.
What Geological Period preceded the Jurassic Period?
after Jurrasic period it is the Cretaceous period
What period was the middle Jurassic period in?
The Middle Jurassic Epoch (175.6 - 161.2Ma) was in the Jurassic Period (199.6 - 145.5Ma).
What was the atmosphere like during the Jurassic period?
During the Jurassic period, the atmosphere was warmer and had higher levels of oxygen compared to today. There were lush forests with a diverse range of plant and animal species, including dinosaurs and early mammals. The climate was relatively stable and supported the evolution of many iconic prehistoric creatures.
Are birds and mammals decended from a common ancestor?
Mammals came before birds. The first mammals lived in the Triassic and the first birds lived in the Jurassic.
Were people alive in the Jurassic period?
No!!! There were no people alive in the Jurassic period.
Which period is older than the Triassic period?
The Jurassic Period followed the Triassic.
What era and period is the allosaurus from?
The Allosaurus lived 150 million years ago. That was during the Jurassic period. The Jurassic period was part of the Mesozoic era.
