Paleontologists Disagree About What This Exquisite Shark Fossil Actually Is
The fossil shark Ptychodus was first identified 190 years ago, but in the intervening centuries of paleontological inquiry, a comprehensive ...
Read moreDetailsThe fossil shark Ptychodus was first identified 190 years ago, but in the intervening centuries of paleontological inquiry, a comprehensive ...
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© 2023 earth-news.info