热门问题
时间线
聊天
视角
三分節蟲
来自维基百科，自由的百科全书
Remove ads
三分節蟲（學名：Triarthrus）是生存於奧陶紀的一屬三葉蟲，生活在海床上。這類三葉蟲的外骨骼長度是其體寬的兩倍，頭甲很大而和尾甲很小，沒有頰刺，頭鞍上有兩對很深的溝。[1]
Remove ads
下屬物種
本屬包括以下物種：
- Triarthrus beckii Green, 1832, 異名 Paradoxides beckii, Calymene beckii
- Triarthrus billingsi Barrande, 1872
- 加拿大三分節蟲 Triarthrus canadensis Smith, 1861
- Triarthrus eatoni (Hall, 1838), 異名 T. macastyensis
- Triarthrus glaber Billings, 1859
- Triarthrus huguesensis Förste, 1924
- Triarthrus latissimus Månsson, 1998
- Triarthrus linnarssoni Torslund, 1940
- Triarthrus rougensis Parks, 1921
- 四川三分節蟲 Triarthrus sichuansis Lu & Chang, 1974
- Triarthrus spinosus Billings, 1857
Remove ads
以下的物種現時已被置入其他屬。
- Triarthrus angelini = Bienvillia angelini
- Triarthrus belli = Parabolinella sp.
- Triarthrus caenigenus = Porterfieldia caenigena
- Triarthrus convergens = Porterfieldia convergens
- Triarthrus fisheri = Porterfieldia fisheri
- Triarthrus goldwyerensis = Porterfieldia goldwyerensis
- Triarthrus humilis = Porterfieldia humilis
- Triarthrus jachalensis = Porterfieldia jachalensis
- Triarthrus pacificus = Porterfieldia pacifica
- Triarthrus papilosus = Porterfieldia papilosa
- Triarthrus parapunctatus = Porterfieldia parapunctata
- Triarthrus parchaensis = Bienvillia parchaensis
- Triarthrus punctatus = Porterfieldia punctata
- Triarthrus rectifrons = Bienvillia rectifrons
- Triarthrus reedi = Porterfieldia caenigena
- Triarthrus shinetonensis = Bienvillia shinetonensis
- Triarthrus sinensis = Porterfieldia sinensis
- Triarthrus tetragonalis = Bienvillia tetragonalis
- Triarthrus thor = Porterfieldia thor
- Triarthrus variscorum = Parabolina frequens[2]
Remove ads
圖片
-
Triarthrus eatoni的復原圖 -
Triarthrus eatoni -
Triarthrus spinosus
參考文獻
延伸閱讀
Wikiwand - on
Seamless Wikipedia browsing. On steroids.
Remove ads