HOME Jurassic Period (199.6MA-145.5MA) Cretaceous Period (145.5MA-65.5MA) Paleogene Period (65.5MA-23.03MA) History Timeline Index
145.5 MA CRETACEOUS145.5 PERIOD (80 M) (145.5-65.5 MA)
Flowering plants appear
Age of Chalk - planktonic foraminifera
Extinction of much Mesozoic life - dinosaurs
LOWER CRETACEOUS145.5 EPOCH (45.9 M)(145.5-99.6 MA)
BERRIASIAN145.5 STAGE (5.3 M) (145.5-140.2 MA)
140.2 MA VALANGINIAN140.2 STAGE (6.3 M) (140.2-133.9 MA)
135 MA Teinolophos - earliest monotreme (egg laying mammal) lives in Australia (ext.)
133.9 MA HAUTERIVIAN133.9 STAGE (3.9 M) (133.9-130 MA)
130 MA BARREMIAN130 STAGE (5 M) (130-125 MA)
125 MA APTIAN125 STAGE (13 M) (125-112 MA)
Yutyrannus huali - largest feathered dinosaur yet found - at least 30 ft. long (in northeastern China)
Synodelphys - earliest marsupial (Metatheria) in China (Liaoning Province) (ext.)
Eomaia scansoria - early eutheria-like (placental) mammal - link to placentals (ext.)
112 MA ALBIAN112 STAGE (12.4 M) (112-99.6 MA)
110 MA Most recent "glacial period" on Earth begins (-10500 BCE)
100 MA Great Angiosperm Radiation - diversity of flowering plants in the fossil record
Most modern sharks present by this time
99.6 UPPER CRETACEOUS99.6 EPOCH (34.10)(99.6-65.5 MA)
CENOMANIAN99.6 STAGE (6 M) (99.6-93.6 MA)
93.6 MA TURONIAN93.6 STAGE (5 M) (93.6-88.6 MA)
90 MA Start of primate line?
88.6 MA CONIACIAN88.6 STAGE (2.8 M) (88.6-85.8 MA)
85.8 MA SANTONIAN85.8 STAGE (2.3M) (85.8-83.5 MA)
85 MA Start of primate line? Adapiformes
83.5 MA CAMPANIAN83.5 STAGE (12.9 M) (83.5-70.6 MA)
70.6 MA MAASTRICHTIAN70.6 STAGE (5.10) (70.6-65.5 MA)
68 MA Tyrannosaurus rex + 68-65 MA
Triceratops + 68-65 MA
HOME Jurassic Period (199.6MA-145.5MA) Cretaceous Period (145.5MA-65.5MA) Paleogene Period (65.5MA-23.03MA) History Timeline Index