Arthropod species (IUCN, 2016-2)
9470 extant species have been evaluated
6580 of those are fully assessed[ a]
4478 are not threatened at present[ b]
2100 to 4990 are threatened[ c]
83 to 169 are extinct or extinct in the wild:
81 extinct (EX) species[ d]
2 extinct in the wild (EW)
86 possibly extinct [CR(PE)]
0 possibly extinct in the wild [CR(PEW)]
^ excludes data deficient evaluations.
^ NT, LR/cd, LC.
^ Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
^ Chart omits extinct (EX) species
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 81 extinct species , 86 possibly extinct species, and two extinct in the wild species of arthropod .[ 1] [ 2]
Possibly extinct species
Mecistocephalus cyclops
Mecistocephalus sechellarum Extinct species
Extinct species
Possibly extinct species
Extinct species
Possibly extinct species
Possibly extinct species
Ceratophysella sp. 'HC'
Delamarephorura tami Extinct species
Includes crabs, lobsters, crayfish, shrimp, krill, woodlice, and many others.
Extinct species
Possibly extinct species
Extinct in the wild species
Extinct species
Possibly extinct species
Extinct in the wild species