Calcitronidae
From Wikipedia, the free encyclopedia
| Calcitronidae Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Thelyphonida |
| Family: | †Calcitronidae Petrunkevitch, 1945 [1] |
The family Calcitronidae is an extinct group of arachnids. Its two monotypic genera are only known from Pliocene deposits of calcite in Arizona.[2] The family has been placed in the order Schizomida, but a review of the order concluded that "the fossil taxa ... are so poorly known that final placement must await further study and possibly new material",[3] and they are not listed in the order in a 2016 catalog of fossil arachnids.[4]
