Palaeontology is the study of organisms that lived in prehistoric times.

learn more… | top users | synonyms (1)

0
votes
0answers
16 views

How fast could a Deinonychus run?

My 4-year-old demands to know, and we couldn't find it stated anywhere on the Web. Thanks!
1
vote
1answer
80 views

How do we predict the lifespan of dinosaurs?

Of course, they are fossils now. I found a link here which states that herbivors lived far longer than carnivores. The example being a T-Rex being "old" at 29, and a herbivorous Bothriospondylus ...
0
votes
0answers
17 views

What is the human species divergence time

How far back along the evolutionary tree do we have to go to find divergence to a completely different species to Hom. sapiens? I don't count Neanderthals because it seems that part of our genome ...
0
votes
1answer
161 views

How does the modern synthesis theory explain the evolution of birds from dinosaurs? [closed]

The theory of evolution claims that birds evolved from dinosaurs only by mutation, genetic drift, migration and natural selection. However, it seems to me that wings were not selectively advantageous ...
-2
votes
1answer
107 views

Was the dodo a dinosaur?

I've always believed that the dodo was a dinosaur, I don't know exactly why. I've done some searching on the internet, but except for toy stores selling "Dodo the Dinosaur's" I didn't find anything ...
6
votes
1answer
87 views

Did any dinosaur molt?

Like snakes or lizards, did any dinosaur molt ? if yes, have we any proof of it ?
5
votes
1answer
46 views

How do we know that ammonites are a kind of cephalopod rather than another type of mollusc?

On a recent fossil hunting trip, I found a small fossil that an expert identified for me as an ammonite beak. He told me such fossils are not uncommon, but are not normally found with their parent ...
0
votes
0answers
27 views

did pteranodons live in colonies?

In one book I read that pteranodons lived in huge colonies. But pteranodon's family in "Dinosaur Train" ( https://en.wikipedia.org/wiki/Dinosaur_Train ) does not seem to be a part of any colony. So, ...
5
votes
1answer
45 views

Are prosauropods ancestors of all sauropods?

My daughter, while reading a book about dinosaurs, asked me if prosauropods are ancestors of all sauropods. Are they? From the name ("pro-sauropods"), I guess that they are, but am I right?
7
votes
1answer
3k views

Are all dinosaur bones radioactive?

I watching some TV program some time ago and a guy in it mentioned that when-ever museums display real dinosaur bones (as opposed to a replica) the bones are painted over with a lead paint, because ...
6
votes
0answers
114 views

Up to date, extensive documentary about dinosaurs?

I just finished reading the Wikipedia page about dinosaurs, and I very much enjoyed it. I knew that much of what I learned in the 80's as a child is (and was) incorrect, and now that I am a parent, I ...
3
votes
1answer
76 views

List of dinosaurs synonyms

Is there a comprehensive list of dinosaurs synonyms with indications of which name is now considered correct? Something like "there's no brontosaurus, there's only Apatosaurus", "there's no ...
4
votes
1answer
117 views

Why do the proportion of predators increase at mass extinction events?

Why does predation surge with mass extinction? It is caused by extreme selective pressures over resource competition that forces certain species to adapt to predatory niches?
2
votes
0answers
58 views

What species of Cerapoda lived during the Jurassic?

So far, I've found eleven species of Cerapoda that lived during the Jurassic period. Are there any other known species that I've missed? The eleven that I've found out about are: Agilisaurus ...
6
votes
1answer
159 views

How did birds survive the KT impact?

As I understand it, the ejecta resulting from the K-T impact (also known as the end-Cretaceous or Cretaceous-Tertiary extinction event) re-entered the atmosphere all over the world; the heat from ...
3
votes
2answers
499 views

How did aquatic dinosaurs go extinct?

Dominant theory is that 'normal' dinosaurs went extinct from ether super volcano or meteor impact or combination of both. However there were aquatic dinosaurs that are not present at this day. Was it ...
2
votes
0answers
35 views

Why are the largest land/air animals today smaller than in the Mesozoic?

The largest dinosaurs and pterosaurs seem to have been much larger than the largest animal terrestrial/avian species since. Was the Mesozoic somehow more hospitable to large animal species than ...
1
vote
0answers
44 views

Why are there no animals with a length greater than 30-40 meters or with a mass greater than 200 tonnes? [duplicate]

The biggest and heaviest aquatic animal is the blue whale: 30 meters long and a mass of 200 tonnes. The biggest and heaviest terrestrial animal was a Sauropod (plant-eating, long-necked dinosaur): 40 ...
2
votes
1answer
96 views

Has it been confirmed yet that the DNA found in dinosaurs was really DNA?

I hear different sources claiming different things, bbc said they did, wikipedia says it hasn't which is it?
1
vote
1answer
258 views

Does the fossil record disprove Evolution? [closed]

It is said by people opposed to Evolution, that the fossil record contradicts and disproves it. They say all the animals suddenly appeared, exploded everywhere, were fully formed, had no transitions, ...
4
votes
1answer
764 views

How big can cold-blooded animals get?

It seems impossible to have reptiles the size of dinosaurs, just because they are really big! Did they have different systems of maintaining body temperature or maybe they weren't the exact type of ...
3
votes
1answer
81 views

Master Catalog of all Fossils / Literal Fossil Record?

Is there a website or other resource that catalogs all fossils ever found? Basically, is there a literal "Fossil Record"? Where do scientists gather their results from excavations? Are they just ...
20
votes
3answers
3k views

Were there any flying dinosaurs?

I've seen some articles which came in contradiction with each other. The first article was talking about flying dinosaurs, dinosaurs with feathers and so on. A couple of other articles are talking ...
3
votes
1answer
71 views

How does tree resin capture arthropods?

In regards to a published paper of a spider about to make a meal out of a parasitic wasp (http://www.tandfonline.com/doi/abs/10.1080/08912963.2011.640399#.U1kSV14gVBU), it reminded me of a issue I've ...
6
votes
1answer
99 views

How to determine whether a newly discovered dinosaur is not a young one and not an entirely different species?

Every once in a while, there is an official announce that a new species has been discovered. For example, paleontologists have recently discovered a dinosaur they named Nanuqsaurus hoglundi, which ...
2
votes
1answer
102 views

The oldest common ancesstor of all human beings

Do all human beings have a single oldest ancestor (a man and a woman), or were there were many ancestors at the same time at different places on earth? This article sheds some light. Is there another ...
3
votes
1answer
75 views

Historical recovery from mass extinction events

Is there a way to generally characterize how species "regrew" after the various mass extinction events happening periodically from 450 Ma to 65 Ma. Would the surviving species just start back where ...
5
votes
2answers
544 views

What were the mammal ancestors like 65 million years ago?

What we know about our mammal ancestors that were alive (and survived) at the extinction event 65 million years ago?
12
votes
2answers
281 views

How do we know that dinosaurs were related to lizards and/or birds?

Do we clearly know what the living closest relative of the dinosaurs are? And connected to the first question, in scientific manner how do we know these relationship between extinct species and living ...
5
votes
1answer
155 views

Descendants of dinosaurs

It is commonly accepted that birds are descendants of dinosaurs. It is nice that not all dinosaurs died out. Are there other animals, descendants of dinosaurs, that survived ? (Maybe not till our ...
10
votes
1answer
175 views

Were dinosaurs 'hot-blooded' or 'cold-blooded'?

Were dinosaurs hot-blooded or cold-blooded? NOTE: The popular term 'hot-blooded' means having an internally maintained average body temperature, which is generally more than that of the surroundings, ...
14
votes
1answer
1k views

How did the huge dinosaurs cope with gravity and loads on bones, etc.?

It's very costly to be a huge animal. Your mass grows in cube when you scale up, but you still only have two/four legs to support the same weight. This increases the pressure that your body needs to ...
52
votes
2answers
2k views

Is there any evidence that sexual selection may lead to extinction of species?

Darwin suggested that sexual selection, especially by female choice, may counter natural selection. Theoretical models, such as a Fisherian runaway process, suggest that evolution of preference and ...
11
votes
1answer
230 views

Are there any pre-Holocene venomous animals?

The novel (and subsequently movie) Jurassic Park featured a dinosaur called Dilophosaurus, that was purported to be venomous and had an ability similar to that of the extant spitting cobra. ...