From: Subject: Ages of the Mesozoic -- Dinosauricon Date: Tue, 4 May 2004 16:48:31 -0700 MIME-Version: 1.0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Content-Location: http://dinosauricon.com/times/index.html X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Ages of the Mesozoic -- Dinosauricon This page will soon be reconstructed.=20

AGES OF THE MESOZOIC

Primary Source:

Gradstein, F. M., F. P. Agterberg, J. G. Ogg, J. = Hardenbol,=20 P. van Veen, J. Thierry & Z. Huang. 1995. A Triassic, Jurassic and = Cretaceous time scale, pp. 95-126. IN W. A. Bergren, D. V. Kent, M.-P. = Aubry=20 & J. Hardenbol (eds.), Geochronology, Time Scales, and Global=20 Stratigraphic Correlation. SEPM Special Publication No. 54.=20

Thanks to Tom Holtz for posting the data to the Dinosaur Mailing=20 List.

Age estimates are in millions of years ago (Mega anna, = or Ma).=20 Margin of error is in millions of years to two standard = deviations.=20

Era	Period	Epoch	Age	End	Error
Cenozoic	0	0
Mesozoic	Cretaceous	Late	Senonian	Maastrichtian	65.0	0.1
Campanian	71.0	0.5
Santonian	83.5	0.5
Coniacian	85.8	0.5
Gallic	Turonian	89.9	0.5
Cenomanian	93.5	0.2
Early	Albian	98.9	0.6
Aptian	112.2	1.1
Barremian	121.0	1.4
Neocomian	Hauterivian	127.0	1.6
Valanginian	132.0	1.9
Berriasian	137.0	2.2
Jurassic	Late	Malm	Tithonian	144.2	2.6
Kimmeridgian	150.7	3.0
Oxfordian	154.1	3.2
Middle	Dogger	Callovian	159.4	3.6
Bathonian	164.4	3.8
Bajocian	169.2	4.0
Aalenian	176.5	4.0
Early	Lias	Toarcian	180.1	4.0
Pliensbachian	189.6	4.0
Sinemurian	195.3	3.9
Hettangian	201.9	3.9
Triassic	Late	Tr3	Rhaetian	205.7	4.0
Norian	209.6	4.1
Carnian	220.7	4.4
Middle	Tr2	Ladinian	227.4	4.5
Anisian	234.3	4.6
Early	Scythian	Olenekian or Spathian & Nammalian	241.7	4.7
Induan or Griesbachian	244.8	4.8
Paleozoic	248.2	4.8

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