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Persististrombus coronatus : ウィキペディア英語版 | Persististrombus coronatus
''Persististrombus coronatus'' is an extinct species of fossil sea snail from the Pliocene (5-2 million years ago), a conch, a marine gastropod mollusk in the family Strombidae, the conchs. ==Description== ''Persististrombus coronatus'' has a shell reaching a length of , but some specimen may attain sizes up to 155 mm. The large-sized light brown shells are heavy, very thick at the right edge, and show long protuberances. These molluscs were epifaunal omnivore-grazers. They lived in shallow water on sandy seabeds, in warm and tropical seas. In the Miocene, the species is a West African element, which later invaded the Mediterranean Region. It disappears from the Mediterranean Sea completely with the onset of the Late Pliocene cooling.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Persististrombus coronatus」の詳細全文を読む
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