| 名稱 海林檎化石 | Name Cystoids |
| 地質年代 / | Geological Age / |
| 描述 海林檎是一種已滅絕的棘皮動物，是其最古老、谷歌組織最簡單的一綱。形狀為球形，與蘋果類似。海林檎沒有真正的肢，因此牠們利用短小沒有分叉被稱為鰓的支臂從水中過濾食物。牠們和海百合有驚人的相似處，都是利用莖節附著在基底上，有一個由許多不同骨板組成的膨脹殼。 | Descriptions Cystoids resembled crinoids, but they had an avoid, rather than cup-shaped body, with the opposite end attached to the substratum, often by a stalk, although some stalkless species did exist. Cystoidea is a class of extinct crinozoan echinoderms, termed cystoids, that lived attached to the sea floor by stalks. Cystoids are distinguished from other echinoderms by triangular pore openings. Superficially, cystoids resembled crinoids, but they had an ovoid, rather than cup-shaped, body. The mouth was at the upper pole of the body, with the opposite end attached to the substratum, often by a stalk, although some stalkless species did exist. The anus lay on the side of the body. |
| 地點 廣西 | Location Guangxi |
| 參考 Reference https://en.m.wikipedia.org/wiki/Cystoidea https://zh.m.wikipedia.org/zh-hant/%E6%B5%B7%E6%9E%97%E6%AA%8E | |
| 編者 由 3A (25) 黃浩之 於 29/5/2018編寫 5A (21) 林彥佑 於3/6/2019 最後編改 | Editor Created by 3A (25) Wong Paolo on 29/5/2018 Last modified by 5A (21) Lim Yan You on 3/6/2019 |
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