Ceratosaurus Timeline

 
 
Ceratosaurus   >   Timeline

   



Ceratosaurus Timeline

Time
 
Event
 
Approximately
220 million years ago
 
First dinosaurs evolve during the Triassic period.
 
Approximately
156 million years ago
 
First Ceratosaurus appears during the Jurassic period.

Ceratosaurus

 
Approximately
145 million years ago
 
Ceratosaurus extinct.
 
Approximately
65 million years ago
 
Cretaceous-Tertiary extinction event: All non-avian dinosaurs go extinct (although of course Ceratosaurus has already been extinct for many million years by this time).

The K/T Extinction Event may have been caused by an asteroid impact:
K/T Extinction Event may have been caused by an asteroid impact

 
1884
 
Othniel C. Marsh discovers, names and describes a Ceratosaurus species - Ceratosaurus nasicornis.

Othniel C. Marsh:
Othniel C. Marsh

 
1896
 
Othniel C. Marsh publishes a skeletal reconstruction of Ceratosaurus.

Ceratosaurus reconstruction by Othniel C. Marsh, 1896
(Note: Incorrect upright posture and pronated hands):
Incorrect Ceratosaurus reconstruction by Othniel C. Marsh, 1896 - Note: upright posture and pronated hands

 
1920
 
Charles W. Gilmore redescribes Ceratosaurus, agreeing with many of Marsh's conclusions including the probable use of the animal's nasal horn.
 
1985
 
David Bruce Norman suggests the nasal horn was probably used in interspecies contests.
 
2000
 
Fossils attributed to a new Ceratosaurus species, Ceratosaurus magnicornis are found in the Fruita Paleontontological Area, outside Fruita, Colorado. Many scientists now however believe that these fossils are not from a Ceratosaurus.
 
2000
 
Fossils attributed to a new Ceratosaurus species, Ceratosaurus dentisulcatus are found in Portugal. Many scientists now however believe that these fossils are not from a Ceratosaurus.
 



Your Comments

Please feel free to comment on this page:

   





Linking to This Page

We do hope that you find this site useful. We welcome people linking to this website or citing us.

The URL of this web page, is:


If you want to link to this web page from your own web site, you can use the following HTML code:



 
      Ceratosaurus Information:

   Classification

   Facts

   Fossils

   Name

   Nasal Horn

   Pictures

   Size

   Timeline



Links:

Dinosaur Coloring

Dinosaur Hangman

Dinosaur Jokes

Dinosaur Museums

Dinosaurs News

Dinosaurs Parks

Dinosaur Types

Science Downloads

Science eBooks



Educational Products

Education Downloads

School eBooks

Science eBooks

Science Project Downloads



More Types of Dinosaurs

Ankylosaurus

Kentrosaurus

Pachycephalosaurus

Protoceratops

Spinosaurus

Styracosaurus

Tyrannosaurus rex
 
 
 
 
 

 
 
Copyright © 2008-2017, Answers 2000 Limited

Disclosure: Our company's websites' content (including this website's content) includes advertisements for our own company's websites, products, and services, and for other organization's websites, products, and services. In the case of links to other organization's websites, our company may receive a payment, (1) if you purchase products or services, or (2) if you sign-up for third party offers, after following links from this website. Unless specifically otherwise stated, information about other organization's products and services, is based on information provided by that organization, the product/service vendor, and/or publicly available information - and should not be taken to mean that we have used the product/service in question. Additionally, our company's websites contain some adverts which we are paid to display, but whose content is not selected by us, such as Google AdSense ads. For more detailed information, please see Advertising/Endorsements Disclosures

Our sites use cookies, some of which may already be set on your computer. Use of our site constitutes consent for this. For details, please see Privacy.

Contact Us   Privacy   Terms of Use   Advertising/Endorsements Disclosures

All trademarks are property of their respective owners.
All third party content and adverts are copyright of their respective owners.

Some graphics on our web sites are Copyright (C) 1997-2000 Hemera Technologies Inc., and used under license. All such pictures are provided for viewing purposes only and are not to be saved or downloaded. All such pictures of recognizable individuals are models and used for illustrative purposes only, and not meant to imply any association or endorsement of said individual with any product or service.