| 名稱 珊瑚化石 | Name Coral Fossil |
| 地質年代 / | Geological Age / |
| 描述 珊瑚之名來自古波斯語sanga（石），是對珊瑚蟲群體及其骨骼的通稱。珊瑚蟲為刺絲胞動物門珊瑚綱，身體呈圓筒狀，有八個或八個以上的觸手，觸手中央有口。多群居，結合成一個群體，形狀像樹枝，不少人因而以為是植物。雖然珊瑚無法移動，但由於牠們能夠伸出觸手來捕食。亞里士多德最初稱這種生物為「zoophyta」，意思是介乎動物與植物之間的生物。十世紀時，波斯學者比魯尼曾提議將牠們歸類為動物，但一直到十八世紀牠們才被正式併入動物界。之所以會有珊瑚枝，是因為珊瑚蟲底部所生長的骨骼，也可以叫珊瑚石或簡稱珊瑚。因為多孔性和枝狀生長，還能給許多微生物和魚類居住，又被稱為活石，主要產在熱帶海中。 | Description Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically live in compact colonies of many identical individual polyps. Corals species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard exoskeleton. It is this exoskeleton that is usually fossilized. Fossil corals also tell us about the past. Since many corals live in warm, shallow sea water, their fossils are good indicators of environmental conditions. Fossil corals found in England tell us that it must have had a much warmer, tropical environment at certain periods in its history. |
| 地點 西密德蘭，英國 | Location West Midlands, England |
| 參考 Reference https://www.oum.ox.ac.uk/thezone/fossils/inverts/coral.htm https://zh.m.wikipedia.org/zh-cn/%E7%8F%8A%E7%91%9A | |
| 編者 由 3B (25) 曾筱曦 於30/5/2019編寫 _________ 於17/1/18最後編改 | Editor Created by 3B (25) Tsang Siu Hei on 30/5/2019 Last modified by ________ as on 17/1/2018 |
