奇異蟲

奇異蟲（學名：）是生存於寒武紀的一屬三葉蟲，生活在大陸棚的泥中。這類三葉蟲比任何生存在寒武紀的其他屬三葉蟲都還要大——最大的個體可長達一公尺。牠們有寬闊的頭部、小型的尾和呈圓錐狀逐漸變小的長形胸部，並有隨其成長而增加的胸節。牠們的眼睛很發達，眉間的前部裂片呈扁平狀，側面頰部則延長為棘。

物種 
 Paradoxides paradoxissimus (Wahlenberg, 1818) 異名 Entomostracites paradoxissimus
 Paradoxides carens (Barrande, 1846) 
 Paradoxides davidis (Salter, 1863) 
 Paradoxides gracilis (Boeck, 1827) 異名 Trilobites desideratus, Vinicella desideratus 
 Paradoxides bidentatus
 Paradoxides brachyrhachis  Linnarsson, 188
 Paradoxides briareus  Geyer, 1993
 Paradoxides forchhammeri
 Paradoxides grandoculus
 Paradoxides haywardi
 Paradoxides hicksii  Salter, 1865
 Paradoxides knizeki  (Kordule, 1990)
 Paradoxides mandiki  (Kordule, 1990)
 Paradoxides minor (Boeck, 1827)
 Paradoxides oppanol (Šnajdr, 1978)
 Paradoxides rohanovicus  (Šnajdr, 1986)
 Paradoxides rugulosus Paradoxides sirokyi  (Šnajdr, 1986)
 Paradoxides walcotti Shaller & Foerste, 1888

 重新分配的物種 
以下的物種現時已被置入其他屬。
 Paradoxides armatus = Metadoxides armatus Paradoxides boltoni = Arctinurus boltoni Paradoxides carolinaensis = Pteridinium Paradoxides expectans = Luhops expectans Paradoxides harlani = Acadoparadoxides harlani Paradoxides kjerulfi = Holmia kjerulfi Paradoxides loveni = Centropleura loveni Paradoxides nevadensis = Olenoides nevadensis Paradoxides oelandicus = Acadoparadoxides oelandicus Paradoxides pusillus = Phanoptes pusillus Paradoxides rotundatus = Hydrocephalus rotundatus Paradoxides sacheri = Acadoparadoxides sacheri Paradoxides torosus = Metadoxides torosus''

圖片

參考文獻 

 

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