Manaʻo nā ʻepekema kanaka hou i nā crustaceans, nā makana chelicerales kahiko i loaʻa, nā mea like ʻole a me nā mea kupanaha. Mai ka ʻike ʻana i ke kuauhau, ʻo ko lākou mau hoahele e pili ana i ka honua holoholona i nā ʻōpio i nā wāwae, nā wahi i noho ai nā wahi ma waena o ka Atlantika, India a me Pacific Pacific, a me nā wahi mamao ʻāina a me nā ʻanuʻu.
I ka hiʻohiʻona, ua like nā scorpions me nā moʻo nui. Loaʻa ka lōʻihi o ko lākou kino i kekahi mau mika. E like me nā moʻo kala, loaʻa i nā mea crustaceans nā mea maikaʻi loa - he ʻoi i ka ʻona i ka hope o ka huelo. ʻO ka mua o nā mea wīwī weliweli me ka puʻupuʻu lima a i ʻole nā puaa e kōkua i nā holoholona e hopu a hoʻopaʻa i ka waiwai i hopu ʻia. Hoʻololi ʻia nā ʻāpana hope i loko o ka palupalu.
Nā ʻūlū nui kanaka - nā kauā nunui e noho ana i ke kai a me nā moana o ka wā ʻo Deviano - i noho i kahi kūikawā i waena o nā invertebrates. I kekahi manawa, ʻo ia kekahi o nā nui o nā holoholona kahiko i make no nā kumu ʻike ʻole.
ʻO ka hiʻona o ka nui o nā crustaceans, e like me ka ʻepekema, hāʻule i luna o Silurian a me Devonian. ʻO ko lākou wahi noho mahele nui, he mau dale resaleated nui i kū i ka papa o ka honua i kēlā manawa. I ka wā e noho ai me nā mea e kau nei, ua noho nā ʻano iʻa like ʻole, a me nā trilobites, ka mea i hoʻokumu i ke kumu o ka ʻai o nā crustaceans.
[edit] Evolution
Ua noho ʻo Racoscorpions ma ka wā Paleozoic - 510–248 Ma mua aku nei. Ua hele nā puka mua i loko o ka wai wai i loko o ke kai. Ma kahi o 325-299 miliona mau makahiki i hala aku nei, ua hele mai ka hapa nui o nā crustaceans i ke ola i ka wai hou.
Hiki i nā ʻōmaʻomaʻi ke hele i ka ʻāina.
Ma kēia mea, he mea hoihoi ka crustaceans ma ke ʻano he hoʻohālike o ka neʻe ʻana mai ke ola i ke kai i ke ola ma ka ʻāina.
[hoʻololi] Physiology
Nā ʻōhaka Racoscorpions mai ka laulā mai 20 cm a 2,5 a hiki 3 m.ʻO ka nui nui i ʻike ʻia ʻo nā arthropods nona nā crustaceans - Jaekelopterus rhenaniae, e noho ana ma kahi o 460-255 miliona mau makahiki i hala, a he lōʻihi ka lōʻihi o 2.5 mau mika.
Loaʻa iā lākou kekahi mau lehele e like me nā ʻāpana like ʻole e ʻae iā lākou e ʻauʻau a ʻaʻe paha ma ka lalo.
Kahi helu
ʻO ke kauoha ka ʻohana Pterygotidae, i noho i ka makahiki 470-370 miliona mau makahiki i hala. He mau lālā lākou o ka superfamily Pterygotioidea. Hoʻokomo ʻia kēia pūʻulu o nā mea i manaʻo ʻia ʻo ia ka nui e ʻike ʻia ana i ka mōʻaukala. ʻO ka lōʻihi o ke kino o nā mea like i hōʻea i ʻelua a me ka hapa mika. Hoʻohui i kahi o nā hānau hānau: Acutiramus - ka mea i noho mai ka Late Silurian a me ka poʻe Eko i ka Mamua. Hōʻike nā haʻawina ma 2011 i kēia holoholona mea paha he scavenger a i ʻole phytophage paha.
ʻO ka ʻĀkau nui nā inoa ʻike nui ʻia. Jaekelopterus rhenaniae, ka mea e noho ana ma kahi o 460-255 miliona mau makahiki i hala aku nei a he lōʻihi loa 2.5 mau mika.