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
Image:Paradoxides gracilis.JPG|Paradoxides gracilis
Image:Paradoxides paradoxissimus.jpg|Paradoxides paradoxissimus
參考文獻
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