Talk:Pangaea

Pangaea A vs Pangaea B

This article makes no mention of the longstanding debate over the configuration of Pangaea, i.e. "Pangaea A vs Pangaea B" debate (where A stands for the classic Wegnerian configuation, while B stands for an alternate proposal where Gondwana is shifted signficantly eastwards, with South America contacting western Europe) , which it really should, as it's a notable part of the historigraphy of the supercontinent. I think most modern researchers have concluded that Pangea A is more likely based on geomagnetic evidence, and the evidence supporting Pangaea B is pretty weak. A recent paper on the topic includes [1], with additional references therein. Hemiauchenia (talk) 19:21, 4 December 2021 (UTC)

Formation of Laurasia

The heading and following text refer to "Laurasia" — but the captions for the second and third diagrams have "Laurussia"!

Incidentally, the four diagrams show the arrangement of earth's landmass at 490 Ma, 430 Ma, 310 Ma and 250 Ma — but the diagram for Appalachian orogeny uses "million years ago", as does the diagram showing The breakup of Pangaea over time. I've always seen "million years ago" shortened to "Mya", never "Ma". Should "Ma" be changed to "Mya"? Prisoner of Zenda (talk) 10:20, 20 December 2022 (UTC)

Some geologists use Ma exclusively.[2] --DB1729^talk 03:42, 3 June 2023 (UTC)

Annamia definition

The article includes the sentence “by the late Silurian, Annamia and South China split from Gondwana and started to head northward…” but Annamia is not defined. Here is a citation that states that Annamia is another term for Indochina or Indosinia: Cocks, L. Robin M.; Torsvik, Trond H. (2013). "The dynamic evolution of the Palaeozoic geography of eastern Asia". Earth-Science Reviews. 117: 40–79. doi:10.1016/j.earscirev.2012.12.001. 108.18.207.147 (talk) 15:15, 10 May 2023 (UTC)

Thanks for reporting this. I have added the information to the article. GeoWriter (talk) 19:24, 10 May 2023 (UTC)

Graphic showing breakup of Pangaea has incompatible periods and ages listed

The graphic showing several steps in the breakup of Pangaea has: Permian 225 Ma Triassic 200 Ma Jurassic 150 Ma Cretaceous 65 Ma Present Day

However, the Permian ended 252 Ma; 225 is right in the middle of the Triassic. This is the only major discrepency, but also, 200 is actually about 1 million years into the Jurassic, and 65 is about 1 million years into the Paleogene. 68.101.125.120 (talk) 23:50, 2 June 2023 (UTC)

The file in question was created by User:Awickert. --DB1729^talk 00:38, 3 June 2023 (UTC)

...cont. Awickert edits infrequently, but I've posted at their talk page in hopes of getting attention via email notification they apparently have set up. DB1729^talk 03:42, 3 June 2023 (UTC)

The file in question comes from the USGS and dates to 1996. The timescale has changed over that period, so we should find a new graphic from somewhere - I'll see if I can find a replacement. Mikenorton (talk) 09:41, 3 June 2023 (UTC)

This is a more recent alternative, also from the USGS, but only shows three stages. Mikenorton (talk) 09:45, 3 June 2023 (UTC)

An accurate image would be preferable but if this cannot be created quickly, an easy alternative work-around would be to mention in the image's caption text that the dates have changed and list the new dates. GeoWriter (talk) 20:28, 3 June 2023 (UTC)

Maps

Are there any maps of Pangaea without the current day borders of the continents? Like a map with just the biomes of Pangaea, or don't we know enough to make a useful map from that? Wikifan153 (talk) 14:40, 1 July 2023 (UTC)