2012年的一个夏夜,云南某市的博物馆发生了一件离奇的文物失窃案。在这个国家一级博物馆内,价值连城的文物很多,像很多战国时期的青铜器,但是窃贼只看上了角落里的一件极不起眼的植物化石标本。这个案子很快交到了市刑警支队的老方这里。老方接到案子,马上就赶赴案发现场。从案发现场来看,窃贼没在现场留下任何线索。没有线索,这个案子怎么破?老方疑惑:这么专业的窃贼,为什么放着价值连城的青铜器不偷,仅仅偷这个小小的化石标本?看来,要找到线索,就一定得弄清这块化石的特殊之处。老方了解到,丢失的是一个叫鹅掌楸的植物化石标本。由于鹅掌楸化石在中国发现得不少,特别是相对于那些更为知名的青铜器来说,这个植物化石本身在整个博物馆里面并没有引起太多人的注意。尽管这个鹅掌楸化石在中国不是第一块,但是这块化石的特殊之处在于 A summer night in 2012, a bizarre cultural relics theft occurred in a museum in a city in Yunnan Province. In this state-level museum, there are many relics of value, like many of the Bronze Ware of the Warring States Period, but the thieves only spotted a very humble fossil specimen in the corner. This case quickly handed over to the city of Interpol detachment of the party here. Lao Fang received the case, immediately rushed to the scene of the incident. From the crime scene, the thieves did not leave any clues on the scene. There are no clues, how to break this case? Lao Fang confused: so professional thieves, why put the priceless city of bronze not steal, just steal this little fossil specimen? It seems, to find clues, we must find out this piece Fossil special. Lao Fang learned that the lost is a Liriodendron fossil specimens. Because Liriodendron fossils have been found in China, especially in relation to the more famous bronzes, the plant fossil itself has not attracted much attention throughout the museum. Although this Liriodendron fossil is not the first in China, the special feature of this fossil is that