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2. Million years ago - Wikipedia

   en.wikipedia.org/wiki/Million_years_ago

   The "ago" is implied, so that any such year number "X Ma" between 66 and 145 is "Cretaceous", for good reason. But the counter argument is that having myr for a duration and Mya for an age mixes unit systems, and tempts capitalization errors: "million" need not be capitalized, but "mega" must be; "ma" would technically imply a milliyear (a ...

3. Late Paleozoic icehouse - Wikipedia

   en.wikipedia.org/wiki/Late_Paleozoic_icehouse

   Approximate extent of the Karoo Glaciation (in blue), over the Gondwana supercontinent during the Carboniferous and Permian periods. The late Paleozoic icehouse, also known as the Late Paleozoic Ice Age (LPIA) and formerly known as the Karoo ice age, was an ice age that began in the Late Devonian and ended in the Late Permian, [1] occurring from 360 to 255 million years ago (Mya), [2] [3] and ...

4. Erathem - Wikipedia

   en.wikipedia.org/wiki/Erathem

   By 3,500 million years ago (Mya) simple life had developed on earth (the oldest known microbial fossils in Australia are dated to this figure). [3] The atmosphere was a mix of noxious and poisonous gases ( methane , ammonia , sulfur compounds, etc. [ 3 ] – a so-called reducing atmosphere [ 4 ] lacking much free oxygen which was bound up in ...

5. Warner Bros. Releases 31 Full-Length Movies on Its YouTube ...

   www.aol.com/warner-bros-releases-31-full...

   Since the start of 2025, the company has released 31 movies on Warner Bros.-owned YouTube channels, all available for free. The movies include ads, unless you are a YouTube Premium subscriber.

6. Geologic time scale - Wikipedia

   en.wikipedia.org/wiki/Geologic_time_scale

   For example, 201.4 ± 0.2 Ma, the lower boundary of the Jurassic Period, is defined as 201,400,000 years old with an uncertainty of 200,000 years. Other SI prefix units commonly used by geologists are Ga (gigaannum, billion years), and ka (kiloannum, thousand years), with the latter often represented in calibrated units ( before present ).

7. Stenian - Wikipedia

   en.wikipedia.org/wiki/Stenian

   The Stenian Period (/ ˈ s t iː n i. ə n / STEE-nee-ən, from Ancient Greek: στενός, romanized: stenós, meaning "narrow") is the final geologic period in the Mesoproterozoic Era and lasted from 1200 Mya to 1000 Mya (million years ago). Instead of being based on stratigraphy, these dates are defined chronometrically.

8. Jurassic - Wikipedia

   en.wikipedia.org/wiki/Jurassic

   The Jurassic (/ dʒ ʊ ˈ r æ s ɪ k / juurr-ASS-ik [2]) is a geologic period and stratigraphic system that spanned from the end of the Triassic Period 201.4 million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya.

9. Sterkfontein - Wikipedia

   en.wikipedia.org/wiki/Sterkfontein

   Sterkfontein, Cradle of Humankind Location in Gauteng Location Gauteng, South Africa Coordinates 26°00′57″S 27°44′05″E  /  26.0157°S 27.7346°E  / -26.0157; 27.7346 Established Declared a World Heritage Site in 2000 Governing body Cradle of Humankind Archaeologists in a structure above the entrance to Sterkfontein Sterkfontein (Afrikaans for Strong Spring) is a set of ...