Skip to main content

Cretaceous References | Navigâtion menuedit4135819-300562851

CretaceousMesozoicGeological periodsMesozoic geochronology


geologic period an seestemJurassicMyaPaleogene












Cretaceous




Frae Wikipedia






Jump to navigation
Jump to search









Cretaceous Period
145–66 million years ago

PreЄ

Є

O

S

D

C

P

T

J

K

Pg

N




Mean atmospheric O
2 content ower period duration

c. 30 vol %[1][2]
(150 % of modern level)

Mean atmospheric CO
2 content ower period duration

c. 1700 ppm[3][4]
(6 times pre-industrial level)

Mean surface temperature ower period duration

c. 18 °C[5][6]
(4 °C above modern level)


Key events in the Cretaceous


view • discuss • edit


-140 —

–

-130 —

–

-120 —

–

-110 —

–

-100 —

–

-90 —

–

-80 —

–

-70 —

–




M
e
s
o
z
o
i
c

 

Jurassic

 

Paleogene

E
a
r
l
y

L
a
t
e

Berriasian

Valanginian

Hauterivian

Barremian

Aptian

Albian

Cenomanian

Turonian

Coniacian

Santonian

Campanian

Maastrichtian

 

 

 

 















C
r
e
t
a
c
e
o
u
s









































An approximate timescale of key Cretaceous events.
Axis scale: millions of years ago.


The Cretaceous, accordin tae present scienteefic consensus, is a geologic period an seestem that spans 79 million years frae the end o the Jurassic Period 145 million years ago (Mya) tae the beginning o the Paleogene Period 66 Mya.



References |




  1. ↑ Image:Sauerstoffgehalt-1000mj.svg


  2. ↑ Image:OxygenLevelsThroughEarthHistory.png


  3. ↑ Image:Phanerozoic Carbon Dioxide.png


  4. ↑ Image:CO2LevelsThroughEarthHistory.png


  5. ↑ Image:All palaeotemps.png


  6. ↑ Image:TemperatureLevelsOverEarthHistory.png












Taen frae "https://sco.wikipedia.org/w/index.php?title=Cretaceous&oldid=564824"










Navigâtion menu


























(window.RLQ=window.RLQ||[]).push(function()mw.config.set("wgPageParseReport":"limitreport":"cputime":"0.516","walltime":"0.608","ppvisitednodes":"value":19802,"limit":1000000,"ppgeneratednodes":"value":0,"limit":1500000,"postexpandincludesize":"value":259776,"limit":2097152,"templateargumentsize":"value":13156,"limit":2097152,"expansiondepth":"value":19,"limit":40,"expensivefunctioncount":"value":0,"limit":500,"unstrip-depth":"value":0,"limit":20,"unstrip-size":"value":1774,"limit":5000000,"entityaccesscount":"value":1,"limit":400,"timingprofile":["100.00% 538.503 1 -total"," 83.47% 449.476 1 Template:Geological_period"," 45.98% 247.614 1 Template:Cretaceous_graphical_timeline"," 43.30% 233.161 1 Template:Graphical_timeline"," 18.93% 101.965 1 Template:Time_scale"," 18.51% 99.663 1 Template:Phanerozoic_220px"," 17.12% 92.165 38 Template:Period_start"," 16.69% 89.872 11 Template:Fossil_range/bar"," 10.11% 54.419 1 Template:Authority_control"," 9.72% 52.320 13 Template:Period_end"],"scribunto":"limitreport-timeusage":"value":"0.066","limit":"10.000","limitreport-memusage":"value":1183508,"limit":52428800,"cachereport":"origin":"mw1332","timestamp":"20190320182340","ttl":2592000,"transientcontent":false);mw.config.set("wgBackendResponseTime":148,"wgHostname":"mw1329"););
-

Popular posts from this blog

The Calvary Singular or Plural The 2019 Stack Overflow Developer Survey Results Are InAre collective nouns always plural, or are certain ones singular?Is “audience” singular or plural?“Wasn't” vs. “weren't” in a vernacular sentence“My last couple of years” — singular or plural?Is 'rest' singular or plural?Is “all but one” singular or plural?Whether to use the singular or plural form of basis?Singular and Plural for numbersIs there a plural form of teeth?performance: plural vs singular?singular or plural nouns?Singular and Plural

Image
How to type a long/em dash `—` Did Scotland spend $250,000 for the slogan "Welcome to Scotland"? Worn-tile Scrabble Can we generate random numbers using irrational numbers like π and e? Geography at the pixel level For what reasons would an animal species NOT cross a *horizontal* land bridge? A female thief is not sold to make restitution -- so what happens instead? What is this sharp, curved notch on my knife for? Why does the nucleus not repel itself? What do I do when my TA workload is more than expected? How do I free up internal storage if I don't have any apps downloaded? How come people say “Would of”? Can there be female White Walkers? Cooking pasta in a water boiler If I score a critical hit on an 18 or higher, what are my chances of getting a critical hit if I roll 3d20? Is it ok to offer lower paid work as a trial period before negotiating for a full-time job? Can an undergraduate be advised by a professor who is very far...
Read more

How does one intimidate enemies without having the capacity for violence?Ideas for how aliens would approach this fight?How to convey the scale of my humanoid without science or units?How does the “space drive” conserve momentum?Planet Vanishes - How does this affect the orbiting starships?How does a community of a Universe Simulator have the same language as its creator?How would US Presidential elections be affected if voters could choose the state their vote for President was counted in?How Does One Ensures the Immortality of Their ConsciousnessHow do I retain national independence while also having a one world government?How can Ganymede have an Earth-like gravity without us having realized it?How would one make a lion mount for a fantasy world?

Image
Emailing HOD to enhance faculty application Forgetting the musical notes while performing in concert Why do I get two different answers for this counting problem? Watching something be written to a file live with tail What defenses are there against being summoned by the Gate spell? Why do bosons tend to occupy the same state? I'm flying to France today and my passport expires in less than 2 months Is the Joker left-handed? How to prevent "they're falling in love" trope Why is it a bad idea to hire a hitman to eliminate most corrupt politicians? I Accidentally Deleted a Stock Terminal Theme What reasons are there for a Capitalist to oppose a 100% inheritance tax? Twin primes whose sum is a cube Can I ask the recruiters in my resume to put the reason why I am rejected? Could gravitational lensing be used to protect a spaceship from a laser? Do I have a twin with permutated remainders? How do I write bicross product symbols in latex? If...
Read more

Output visual diagram of pictureASCII-art logic gate diagramBooks on a ShelfDetermine the Dimensions of a Rotated RectangleDraw a Houndstooth PatternDraw and label an ASCII hexagonal gridGolf me an ASCII AlphabetASCII Jigsaw PuzzleOutput a pretty boxASCII-Art Venn DiagramASCII Exact Cover with Rectangles

Image
Turning a hard to access nut? Magento 2: Make category field required in product form in backend Are hand made posters acceptable in Academia? How do researchers send unsolicited emails asking for feedback on their works? Why is indicated airspeed rather than ground speed used during the takeoff roll? Perfect 4th is dissonant? If I cast the Enlarge/Reduce spell on an arrow, what weapon could it count as? What is it called when someone votes for an option that's not their first choice? Is it okay for a cleric of life to use spells like Animate Dead and/or Contagion? Would mining huge amounts of resources on the Moon change its orbit? Creating points with attributes from coordinates in ArcPy Box half filled color Asserting that Atheism and Theism are both faith based positions Why is "la Gestapo" feminine? Recursively updating the MLE as new observations stream in Why didn't Voldemort know what Grindelwald looked like? Print last inputted...
Read more