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Mazonova
''Mazonova'' is an ichnogenus of fossilized eggs from the Mazon Creek area in the Pennsylvanian of Illinois. They are laid in long strings of eggs enclosed in a gelatinous sheath containing one or two rows of eggs. It is unknown what kind of animal laid the eggs.〔Godfrey, S.J. (1995). "Fossilized Eggs from the Pennsylvanian of Illinois." ''Ichnos: an international journal for plant and animal traces.'' 4(1):71-75.〕 ==Description== ''Mazonova'' is known from seven specimens. They are represented by fossilized impressions of long strands of eggs encased in a gelatinous sheath. In some specimens, the eggs are paired, whereas others have only a single row. The eggs are 1.5 to 1.7 mm in diameter, and the sheath is 3.0 to 3.8 mm in diameter.〔
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「Mazonova」の詳細全文を読む
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