Geological Boundaries | Gods and Planets

EONS, ERAS AND PERIODS

.	.	Eon	Era	Period	.	Date	Event
.	Million.Years	.	.	.	.	Million.Years	.
.	4600-4000	Hadean	.	.	.	.	.
.	4000-2500	Archean	.	.	.	.	.
12	.	4000-3600	Eoarchean	.	.	.	.
11	.	3600-3200	Paleoarchean	.	.	.	.
10	.	3200-2800	Mesoarchean	.	.	.	.
9	.	2800-2500	Neoarchean	.	.	.	.
.	2500-541	Proterozoic	.	.	.	.	.
.	.	2500-1600	Paleoproterozoic	.	.	.	.
8	.	.	2500-2300	Siderian	.	2400-2100	Huronian.glaciation/Suavjarvi.crater
7	.	.	2300-2050	Rhyacian	.	.	.
6	.	.	2050-1800	Orosirian	.	2023	Vredefort.impact.structure
.	.	.	.	.	.	1850	Sudbury.Basin.impact
5	.	.	1800-1600	Statherian	.	.	.
.	.	1600-1000	Mesoproterozoic	.	.	.	.
4	.	.	1600-1400	Calymmian	.	.	.
3	.	.	1400-1200	Ectasian	.	.	.
2	.	.	1200-1000	Stenian	.	.	.
.	.	1000-541	Neoproterozoic	.	.	.	.
1	.	.	1000-850	Tonian	.	.	Radiometric.chronometry
102	.	.	850-635	Cryogenian	1	775-635	Kygas/Sturtian/Marinoan.glaciation
101	.	.	635-541	Ediacaran	2	541	Ediacaran/Cambrian.extinction
.	541-0	Phanerozoic	.	.	.	.	.
.	.	541-252	Paleozoic	.	.	.	.
.	.	.	541-485	Cambrian	.	.	.
.	.	.	.	541-521	.	.	.

ERAS, PERIODS, EPOCHS AND STAGES – PAGE 1

.	Era	Period	Epoch	Stage	.	Date	Event
102	.	Cryogenian	.	.	1	.	.
101	.	Ediacaran	.	.	2	541	Ediacaran/Cambrian.extinction
.	Paleozoic	.	.	.	.	.	.
.	541-485	Cambrian	.	.	.	.	.
.	.	541-521	Terreneuvian	.	.	.	.
100	.	.	541-529	Fortunian	.	.	.
99	.	.	529-521	Stage 2	.	.	.
.	.	521-509	Cambrian.Series.2	.	.	.	.
98	.	.	521-514	Stage 3	3	516	End/Botomian.mass.extinction
97	.	.	514-509	Stage 4	4	513	Kaili.formation
.	.	509-497	Cambrian.Series.3	.	.	.	.
96	.	.	509-505	Stage 5	5	505	Burgess.shale
95	.	.	505-500	Drumian	6	502	Dresbachian.extinction
94	.	.	500-497	Guzhangian	7	497	Orsten.fauna
.	.	497-485	Furongian	.	.	.	.
93	.	.	497-494	Paibian	.	.	.
92	.	.	494-489	Jiangshanian	.	.	.
91	.	.	489-485	Stage 10	8	485	Cambrian/Ordovician.extinction
.	485-443	Ordovician	.	.	.	.	.
.	.	485-470	Early	.	.	.	.
90	.	.	485-477	Tremadocian	.	.	.
89	.	.	477-470	Floian	.	.	.
.	.	470-458	Middle	.	.	.	.
88	.	.	470-467	Dapingian	.	.	.
87	.	.	467-458	Darriwilian	.	.	.
.	.	458-443	Late	.	.	.	.
86	.	.	458-453	Sandbian	.	.	.
85	.	.	453-445	Katian	.	.	.
84	.	.	445-443	Hirnantian	9	443	Ordovician/Silurian.extinction
.	443-419	Silurian	.	.	.	.	.
.	.	443-433	Llandovery	.	.	.	.
83	.	.	443-440	Rhuddanian	.	.	.
82	.	.	440-438	Aeronian	.	.	.
81	.	.	438-433	Telychian	10	433	Ireviken.extinction
.	.	433-427	Wenlock	.	.	.	.
80	.	.	433-430	Sheinwoodian	.	.	.
79	.	.	430-427	Homerian	.	.	.
.	.	427-423	Ludlow	.	.	.	.
78	.	.	427-425	Gorstian	.	.	.
77	.	.	425-423	Ludfordian	11	423	Mulde.extinction
76	.	423-419	Pridoli	Pridoli	12	419	Lau.extinction
.	419-359	Devonian	.	.	.	.	.
.	.	419-393	Early	.	.	.	.
75	.	.	419-410	Lochkovian	13	410	Rhynie.chert
74	.	.	410-407	Pragian	14	407	Hunstruck.fauna
73	.	.	407-393	Emsian	.	.	.

ERAS, PERIODS, EPOCHS AND STAGES – PAGE 2

.	Era	Period	Epoch	Stage	.	Date	Event
.	Paleozoic	Devonian	.	.	.	.	.
.	.	393-382	Middle	.	.	.	.
.	.	.	.	.	.	.	.
72	.	.	393-387	Eifelian	.	.	.
71	.	.	387-382	Givetian	.	.	.
.	.	382-359	Late	.	.	.	.
70	.	.	382-372	Frasnian	15	372	Kellwasser.extinction
69	.	.	372-359	Famennian	16	359	Hangenberg.extinction/Romer’s.Gap
.	359-299	Carboniferous	.	.	.	.	.
.	.	359-323	Mississippian	.	.	.	.
68	.	.	359-346	Tournasian	.	.	.
67	.	.	346-331	Visean	.	.	.
66	.	.	331-323	Serpukhovian	.	.	.
.	.	323-299	Pennsylvanian	.	.	.	.
65	.	.	323-315	Bashkirian	.	.	.
64	.	.	315-307	Moscovian	.	.	.
63	.	.	307-303	Kasimovian	17	303	Carboniferous.Rainforest.Collapse
62	.	.	303-299	Gzhelian	18	299	Mazon.Creek.Fossil.Beds
.	299-252	Permian	.	.	.	.	.
.	.	299-270	Cisuralian	.	.	.	.
61	.	.	299-294	Asselian	.	.	.
60	.	.	294-284	Sakmarian	.	.	.
59	.	.	284-275	Artinskian	.	.	.
58	.	.	275-270	Kungurian	19	270	Olson’s.extinction
.	.	270-260	Guadalupian	.	.	.	.
57	.	.	270-268	Roadian	.	.	.
56	.	.	268-265	Wordian	.	.	.
55	.	.	265-260	Capitanian	20	260	Wuchiapingian.extinction/Emeishan.Traps
.	.	260-252	Lopingian	.	.	.	.
54	.	.	260-253	Wuchiapingian	.	.	.
53	.	.	253-252	Changhsingian	21	252	Permian/Triassic.extinction/Siberian.Traps
.	Mesozoic	.	.	.	.	.	.
.	252-201	Triassic	.	.	.	.	.
.	.	252-247	Early	.	.	.	.
52	.	.	252-251	Induan
51	.	.	251-247	Olenekian	22	247	Smithian/Spathian.extinction
.	.	247-235	Middle	.	.	.	.
50	.	.	247-242	Anisian	.	.	.
49	.	.	242-235	Ladinian	.	.	.
.	.	235-201	Late	.	.	.	.
48	.	.	235-228	Carnian	23	228	Carnian.Pluvial.Event
47	.	.	228-208	Norian	.	.	.
46	.	.	208-201	Rhaetain	24	201	Triassic/Jurassic.extinction
.	201-145	Jurassic	.	.	.	.	.
.	.	201-175	Early	.	.	.	.
45	.	.	201-196	Hettangian	.	.	.
44	.	.	196-189	Sinemurian	.	.	.
43	.	.	189-183	Pleinsbachian	.	.	.
42	.	.	183-175	Toarcian	25	175	Toarcian.turnover.(extinction)

ERAS, PERIODS, EPOCHS AND STAGES – PAGE 3

.	Era	Period	Epoch	Stage	.	Date	Event
.	Mesozoic	Jurassic	.	.	.	.	.
.	.	175-161	Middle	.	.	.	.
41	.	.	175-171	Aalenian	.	.	.
40	.	.	171-167	Bajocian	.	.	.
39	.	.	167-164	Bathonian	.	.	.
38	.	.	164-161	Callovian	.	.	.
.	.	161-145	Late	.	.	.	.
37	.	.	161-155	Oxfordian	.	.	.
36	.	.	155-150	Kimmeridgian	26	150	Kimmeridge.Clay.Formation
35	.	.	150-145	Tithonian	.	.	.
.	145-66	Cretaceous	.	.	.	.	.
.	.	145-100	Early	.	.	.	.
34	.	.	145-140	Berriasian	.	.	.
33	.	.	140-133	Valanginian	.	.	.
32	.	.	133-129	Hauterivian	.	.	.
31	.	.	129-125	Barremian	.	.	.
30	.	.	125-113	Aptian	.	.	.
29	.	.	113-100	Albian	.	.	.
.	.	100-66	Late	.	.	94	Cretacious.Thermal.Maximum
28	.	.	100-94	Cenomanian	27	94	Bonarelli.anoxia
27	.	.	94-89	Turonian	.	.	.
26	.	.	89-86	Coniacian	.	.	.
25	.	.	86-83	Santonian	28	83	Crinoid.extinction
24	.	.	83-72	Campanaian	.	.	.
.	.	.	72-66	Maastrichtian	29	66	Cretacious/Paleogene.boundary.(extinction)
23	Cenozoic	.	.	.	.	.	.
.	66-23	Paleogene	.	.	.	.	.
.	.	66-56	Paleocene	.	.	.	.
.	.	.	66-61	Danian	.	.	.
22	.	.	61-59	Selandian	.	.	.
21	.	.	59-56	Thanetian	30	56	Paleocene/Eocene.Thermal.Maximum
20	.	56-34	Eocene	.	.	.	.
.	.	.	56-47	Ypresian	.	.	.
19	.	.	47-41	Lutetian	.	.	.
18	.	.	41-38	Bartonian	.	.	.
.	.	.	.	.	.	34	Grande.Coupre
17	.	.	38-34	Priabonian	31	34	(Eocene/Oligocene.extinction)
16	.	34-23	Oligocene
.	.	.	34-28	Rupelian	32	28	La.Garita.Caldera
15	.	.	28-23	Chattian	33	23	Nunavut.impact
14	23-2.6	Neogene	.	.	.	.	.
.	.	23-5	Miocene	.	.	.	.
.	.	.	23-20	Aquitanian	.	.	.
13	.	.	20-16	Burdigalian	.	.	.
12	.	.	16-13	Langhian	34	13	Middle.Miocene.Disruption.(extinction)
11	.	.	13-11	Serravallian	.	.	.
10	.	.	11-7	Tottonian	.	.	.
9	.	.	7-5	Messinian	35	5	Messinian.Salinity.Crisis/Zanclean.flood

ERAS, PERIODS, EPOCHS AND STAGES – PAGE 4

.	Era	Period	Epoch	Stage	.	Date	Event
.	Cenozoic	Neogene	.	.	.	.	.
8	.	5-2.6	Pliocene	.	.	.	.
.	.	.	5-3	Zanclean	.	.	.
7	.	.	3-2.6	Piacenzian	36	2.6	Scorpius/Centaurus.supernova
6	2.6-0	Quarternary	.	.	.	.	.
.	.	2.6-.01	Pleistocene	.	.	.	.
.	.	.	2.6-1.8	Gelasian	.	.	.
.	.	.	1.8-0.8	Calabrian	.	.	.
5	.	.	0.8-0.1	Ionian	.	.	Middle.Paleolithic.300,000/50,000
4	.	.	0.1-.01	Tarantian	.	.	Upper.Paleolithic.50,000-10,000
3	.	.01-	Holocene	.	.	.	Neolithic.10,200-4,500
2	.	.	.	.	.	.	Chalcolithic.5000-3600
1	.	.	.	.	.	.	Bronze.3600-1200
.	.	.	.	.	.	.	Iron.1200-

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