65.5 MA CENOZOIC 65.5 ERA (65.5 M) (67MA-p)

TERTIARY67 PERIOD (65 M) no official rank (ICS)(67-2 MA)

PALEOGENE 65.5 PERIOD (42.47) (65.5-23.03 MA)

PALEOCENE EPOCH65.5 (9.7 M) (65.5-55.8 MA)

Alpine mountain building worldwide throughout Tertiary

Third and final major stage of breakup of Panagaea - Norwegian Sea opens up (Paleocene to Oligocene)

K/T Extinction Event - dinosaurs disappear, along with ammonites (or K/Paleogene)

DANIAN65.5 STAGE (4.4 M) (65.5-61.1 MA)

65 MA Earliest white shark teeth (-60 M)

63 MA Haplorrhini (dry nosed) splits from more primitive Strepsirrhines (wet nosed) primate line

62 MA Phorusrhacidae family (aka Terror Birds) appear (-2 MA)

61.1 MA SELANDIAN61.1 STAGE (2.4 M) (61.1-58.7 MA)

60 MA Hyracotherium ("Eohippus") - earliest known member of the horse family (-45 MA)

58.7 MA THANETIAN58.7 STAGE (2.9 M) (58.7-55.8 MA)

56 MA Sifrhippus - small horse that got smaller as time proceeded

55.8 MA EOCENE55.8 EPOCH (22 M) (55.8-36 MA)

PETM - Paleocene/Eocene Therman Maximum - rapid global warming by 6 degrees Celsius hits peak

Mass faunal extinctions after PETM

Hammerhead sharks (Sphyrnidae) appear during Eocene

YPRESIAN55.8 STAGE (7.2 M) (55.8-48.6 MA)

55 MA EECO begins - Early Eocene Climatic Optimum - brought on by increased volcanic activity?

No useful fossil record has been discovered for this period (55-26 m)

Anscestors pf the wombat appear - Diprodontia

53 MA ELMO event - "Eocene Layer of Mysterious Origen

50 MA EECO ends - cooling of deep water in Oceans worlwide

Cataceans - land mammals adapt to marine life - Pakicetids

Earliest known bat

Lemur/Loris Split

Notharctus - inhabited Europe

49 MA Azolla Event - freshwater fern "Azolla" blooms in Arctic Ocean - draw down of carbon produces current "Ice House" age

48.6 MA LUTETIAN48.6 STAGE (8.2 M) (48.6-40.4 MA)

45 MA Tarsius syrichta (Philippine tarsier) (-present)

40.4 MA BARTONIAN40.4 STAGE(3.2 M) (40.4-37.2 MA)

40 MA Formation of 1st Antarctic ice

Basilosaurus cetoides ("emperor reptile") (-37 MA) Alabama state fossil

Canids first appear (dog family) ( -early Oligocene)

Old world/New World monkey split

37.2 PRIABONIAN37.2 STAGE (3.3 M) (37.2-33.9)

33.9 MA OLIGOCENE EPOCH33.9 (11 M) (33.9-25 MA)

First felids (cats) emerge (- 25MA)

RUPELIAN33.9 STAGE (5.5 M) (33.9-28.4 MA)

33.5 MA Grand Coupure Event (MP21 event) - major turnover of European mammalian fauna -Asian influx to follow

30 MA South America and Antarctica separate creating Drake's Passage

28.4 MA CHATTIAN28.4 STAGE (5.37 M) (28.4-23.03 MA)