Xitun Formation
Encyclopedia
The Xitun Formation is a palaeontological
Paleontology
Paleontology "old, ancient", ὄν, ὀντ- "being, creature", and λόγος "speech, thought") is the study of prehistoric life. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments...

 formation which named after the Xitun, a location in South China
Northern and southern China
Northern China and southern China are two approximate regions within China. The exact boundary between these two regions has never been precisely defined...

. This formation it includes many remains of fossilized fish of Early Devonian period (Late Lochkovian).
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