Tag Archives: GCCRC

FL046 Oak Fossil

名稱 橡樹化石 Name Oak fossil 地質年代 始新世 Geological AgeEocene, Bagshot Beds, Pipe Clay Series 描述 遼東櫟(Quercus hiholensis)是殼斗科(Fercaceae)屬Quercus中已經滅絕的一種橡樹。華盛頓中部發現的中中新世化石可以發現櫟屬(Quercus hiholensis)。 Q. hiholensis橡子的大小範圍從4乘4.3毫米(0.16乘0.17英寸)到15.3乘18.8毫米(0.60乘0.74英寸),在一些堅果的尖端有一個umbo,但在其他堅果上沒有。在二十六個確定的Q. hiholensis橡子中,只有一個標本有從堅果中出現的堅果,而在其他標本中只有花被和样式,或者是umbo。外殼的外部包括螺旋排列的刻度,其具有紙質尖端並且範圍高達2.8mm(0.11英寸),紙質尖端進一步延伸至1.4mm(0.055英寸)。該杯狀物具有散佈在其中的硬化斑塊,其中一些硬鱗片與鱗片基部相關聯,組織成白色星形斑塊。果實具有卵形到卵圓錐形狀,尺寸在2.7×2.6mm(0.11×0.10英寸)至9×10.9mm(0.35×0.43英寸)之間。較小,較不成熟的果實表現出獨特的風格和花被結構。這些風格有喇叭形尖端,很短,而花被有明顯的葉片,與風格緊密相連。對於櫟屬部分的橡子來說,最年輕的標本仍然有中止的第二胚珠,並且在發育中的果實基部附近存在分隔的隔膜。 Descriptions Quercus sp. (Very Rare) Eocene, Bagshot Beds, Pipe Clay Series Collected in the Victorian era is this very rare plant leaf which was related to the modern oak. This specimen is preserved in “Pipe Clay” which was used in making pipes. This site no longer exists as it is buried beneath the promenade, thus making specimens extremely sought after. Size: Length of Leaf…

Read More »

FL045 Starfish Fossil

名稱 海星化石(燧石內) Name Starfish Fossil (Preserved in Flint) 地質年代 白堊紀 Geological Age Cretaceous, Upper Chalk 描述 海星的化石是非常罕見。因為海星的脊索由100多個鈣質骨節組成,這些骨節由軟組織連接,海星死亡後,軟組織消亡,這些鈣質骨節就被打散,形成不了完整的海星化石。 Descriptions Micraster sp This particular example has a very unusual colouration of black, beige and white which combines to make a very aesthetic specimen. Size: 45mm x 45mm The fossil record for starfish is ancient, dating back to the Ordovician around 450 million years ago, but it is rather sparse, as starfish tend to disintegrate after death. Only the ossicles and spines of the animal are likely to…

Read More »

FL044 Sea Whelk Fossil

名稱 侏羅-白堊紀海娥螺   Name Sea whelk fossil, Jurassic to Cretaceous 地質年代 侏羅-白堊紀 Geological Age Jurassic to Cretaceous Period 描述 殼體呈高錐形的腹足類。根據殼的內部構造來鑑定,殼口具軸旋褶,壁旋褶和腭旋褶。分佈於侏羅-白堊紀時的特提斯海區。 DescriptionsThe shell is a high-conical gastropod. According to the internal structure of the shell, the shell mouth has a shaft crease, a wall pleat and a crease. Distributed in the Tethys Sea area during the Jurassic-Cretaceous period. 地點 / Location / 參考 Referencehttps://baike.baidu.com/item/%E6%B5%B7%E5%A8%A5%E8%9E%BA%E7%B1%BB 編者 由 3E (1) 陳靖彤 於1/6/2019 編寫 _________ 於17/1/18最後編改   Editor Created by 3E (1) Chan Ching Tung on 1/6/2019 Last modified…

Read More »

FL043 Mussel Fossil

名稱 河蚌化石 Name Mussel fossil 地質年代 / Geological Age / 描述 有兩個硬的, 通常是碗形的外殼 (稱為閥門) 包圍軟波 Descriptions The fossil contains two hard, usually bowl-shaped, shells (called valves) enclosing the soft body. 地點 / Location / 參考 Reference https://www.bgs.ac.uk/discoveringGeology/time/Fossilfocus/bivalve.html 編者 由 3C (35) 余星儀 於30/5/2019 編寫 _________ 於17/1/18最後編改   Editor Created by 3C (35) Yu Sing Yee on 30/5/2019 Last modified by ________ as on 17/1/2018  

Read More »

FL042 Coral Fossil

名稱 珊瑚化石  Name Coral fossil 地質年代 / Geological Age / 描述 由小型無脊椎動物組成 Descriptions made up of small invertebrate animals 地點 / Location / 參考 Reference http://www.oum.ox.ac.uk/thezone/fossils/inverts/coral.htm 編者 由 3D (1) 陳禮邦 於31/5/2019 編寫 _________ 於17/1/18最後編改   Editor Created by 3D (1) Chan Lai Pong on 31/5/2019 Last modified by ________ as on 17/1/2018  

Read More »

FL041 Petrified Wood Fossil

名稱 木化石,硅化木 Name Petrified wood fossil 地質年代 / Geological Age / 描述 木化石是幾百萬年或更早以前(最少也要七,八百萬年)的樹木被迅速埋葬地下後,木質部分被地下水中的SiO₂(二氧化矽)交換而成的樹木化石。它保留了樹木的木質結構和紋理。顏色為土黃、淡黃、黃褐、紅褐、灰白、灰黑等,拋光面可具玻璃光澤,不透明或微透明,因部分木化石的質地呈現玉石質感,又稱為樹化玉或矽化木。矽化木是數億年前的樹木因種種原因被埋入地下,在地層中,樹幹周圍的化學物質如二氧化矽、硫化鐵、碳酸鈣等在地下水的作用下進入到樹木內部,替換了原來的木質成分,保留了樹木的形態,經過石化作用形成的植物化石,因其中所含的二氧化矽成分多,所以,常常稱為矽化木。   Description Petrified wood (from the Latin root petro meaning “rock” or “stone”; literally “wood turned into stone”) is the name given to a special type of fossilized remains of terrestrial vegetation. It is the result of a tree or tree-like plants having completely transitioned to stone by the process of permineralization. All the organic materials have been replaced with minerals (mostly a silicate, such as quartz), while retaining the original structure…

Read More »

FL040 Trilobite Fossil

名稱 三葉蟲化石 Name Trilobite 地質年代 / Geological Age / 描述 因背甲被兩背溝縱為軸部,和左右對稱兩肋葉,故稱三葉蟲。自前至後可分為頭、胸、尾三部分,該蟲能終生階段性脫殼,所以常見於頭甲及尾甲分散保存為化石。 摩洛哥三葉蟲化石標本古生物動物化石原石國外礦石石頭收藏 尺寸:27*20*26mm 重量:15g Descriptions They all have the same basic design, three lobes: a left pleural lobe, a middle axial lobe, and a right pleural lobe. They are also divided into a Cephalon (Head), Thorax (Middle), and Pygydium (Tail). 地點 摩洛哥 Location Morocco 參考 Referencehttps://www.fossilguy.com/gallery/invert/arthropod/trilobite/index.htm https://baike.baidu.com/item/三叶虫化石 編者 由 3B (19) 伍敏軒 於 30/5/2019 編寫 _________ 於17/1/18最後編改   Editor Created by 3B (19) Ng Mun Hin Manfred on 30/5/2019 Last modified by ________ as on…

Read More »

FL039 Anosteira Maomingensis Tortoise Fossil

名稱 茂名無盾龜化石 Name Tortoise fossil: Anosteira maomingensis 地質年代 始新世晚期 Geological Age Late Eocene 描述 無盾龜,古龜類的一屬,屬隱頸龜類。甲殼上角質盾片常退化,有緣板,腹甲後葉縮小,生活於淡水中。這是廣東茂名始新世晚期地層中發現的無盾龜化石。龜是長壽的象徵,又寓意財富積聚。 规格:18*23*6.5cm 重量:3640g   Descriptions Anosteira is an extinct genus of turtle from the Eocene to the Oligocene of Asia and North America. It is a tortoise fossil founded in Guangdong China which lived in late Eocene. 地點 廣東茂名 Location Maoming, Guangdong 參考 Reference   編者 由 3C (32) 黃蔚晴於 30/5/2019 編寫 5A (24) 戴爾軒 於3/6/2019最後編改   Editor Created by 3C (32) Wong Wai Ching on 30/5/2019 Last modified by 5A (24) Tai Yi Hin as on 3/6/2019  

Read More »

FL038 Scallop Fossils

名稱 扇葉貝化石群   Name Scallop fossils 地質年代   Geological Age   描述 扇葉貝化石群,4億年前的海底動物。目前僅廣西有少量的產出。化石群上還有一個“無洞貝” 27*3*32cm 重量:3.0kg Descriptions   地點 廣西 Location Guangxi 參考 Reference   編者 由 ________ 編寫 _________ 於17/1/18最後編改   Editor Created by __________ Last modified by ________ as on 17/1/2018  

Read More »

FL037 Deer Tooth Fossil

名稱 鹿牙化石  Name Deer tooth fossil 地質年代   Geological Age   描述   Descriptions   地點   Location   參考 Reference   編者 由 ________ 編寫 _________ 於17/1/18最後編改   Editor Created by __________ Last modified by ________ as on 17/1/2018  

Read More »