maastrichtian 

  1. 名詞
麥斯裏希特階

    
                        
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例句

                

                    
    
                                                    
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                                During the Maastrichtian , a regression commences.                            
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                                Pterosaurs did not slowly get larger during the Maastrichtian .                            
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                                Five families have both Maastrichtian and Paleocene fossil representatives.                            
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                                The Allen Formation is likely Maastrichtian, but not latest Maastrichtian .                            
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                                Both fossils were found in the Lance Formation, dating from the Maastrichtian .                            
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