Pannotia: Perbedaan antara revisi
Konten dihapus Konten ditambahkan
k Bot: Perubahan kosmetika |
tambah rujukan →Perpecahan |
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Baris 4:
== Perpecahan ==
[[Samudra Lapetus]] mulai terbentuk di pusat kutub selatan Pannotia menandai perpecahan benua tersebut. Hal ini terjadi 200 juta tahun setelah perpecahan [[Rodinia]]. Pembentukan Lapetus dan [[laut Kambrium]] lainnya menyediakan habitat bagi [[Hewan|metazoa]] bertubuh lunak yang baru mengalami tahap awal evolusi. Hal ini disebut sebagai [[Ledakan Kambrium|Ledakan kambrium]].<ref>{{Cite journal|last=Dalziel|first=Ian W. D.|date=1997-01-01|title=OVERVIEW: Neoproterozoic-Paleozoic geography and tectonics: Review, hypothesis, environmental speculation|url=https://pubs.geoscienceworld.org/gsa/gsabulletin/article-abstract/109/1/16/183166/OVERVIEW-Neoproterozoic-Paleozoic-geography-and|journal=GSA Bulletin|language=en|volume=109|issue=1|pages=38|doi=10.1130/0016-7606(1997)1092.3.CO;2|issn=0016-7606|quote=However, the Iapetus ocean basin formed within the Pannotian supercontinental assembly ≈200 m.y. later than the breakup of Rodinia, after the initial development of soft-bodied metazoans, notably the Ediacaran fauna (Grotzinger et al., 1995), and possibly after the divergence of metazoan phyla (Wray et al., 1996). The oxygen content of the atmosphere had passed a critical threshold (Knoll and Walter, 1992), and the advancing Cambrian seas appear to have opened up a myriad of unoccupied habitats, permitting the unique “explosion” of skeletalized metzaoans of phyla already established.}}</ref>
== Referensi ==
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