奇異蟲

奇異蟲（學名：）是生存於寒武紀的一屬三葉蟲，生活在大陸棚的泥質沉積中。這類三葉蟲的體型比寒武紀的任何其他屬三葉蟲都還要大——最大的個體可達一公尺長。牠們有寬闊的頭部、小型的尾和呈圓錐狀逐漸變小的長胸部，胸節數量隨著成長而增加。頭鞍的前部裂片呈扁平狀，側頰則延長為刺，眼睛很發達。

 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 



Q
Q
Q
Q