Early Cretaceous Period 早白垩世时期
jurassic-early cretaceous 侏罗纪白垩纪
middle jurassic-early cretaceous 中侏罗世早白垩世
Late Jurassic to Early Cretaceous 晚侏罗世至早白垩世
Early Cretaceous Pityostrobus 松型球果
late early cretaceous-early late cretaceous 早白垩世晚期晚白垩世早期
early cretaceous age 早白垩世
the early cretaceous 早白垩世
The fault zone extended northwards further during the second transcurrent faulting in Early Cretaceous and sinistral displacement of ca. 200 km took place again.
在该断裂带早白垩世的第二次平移中,断裂带向北延伸,又发生了约200km的左行平移。
参考来源 - 前陆沉积与变形对郯庐断裂带同造山运动的制约The Mamuxia Formation at the Yawa section could not be regarded as the representative of the Late Jurassic to the Early Cretaceous strata in the Longgeer-Nanmulin stratigraphic subregion in south Gangdise.
鸭洼剖面的"麻木下组"不能再作为冈底斯南带隆格尔-南木林地层小区晚侏罗世-早白垩世岩石地层单位的代表。
参考来源 - 西藏冈底斯南部措勤县鸭洼地区麻木下组时代的修订及其地质意义·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
Fifty-seven feet long and up to nine tons, spinosaurus started poking his head around the early Cretaceous some 100 million years ago.
57英尺长，9吨重，棘龙在大约1亿年前的白垩纪早期就开始四处活动。
Middle stage of Early Cretaceous-Late Cretaceous.
早白垩世中期—晚白垩世。
They date from the early Cretaceous period, which began around 145 million years ago and ended 65 million years ago.
据悉，他们最早生活在白垩纪早期，亦即1亿4千5百万年前到6千5百万年前。
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