| Tetrophthalmi | |
|---|---|
 Hastocularis argus Garwood et al., 2014, reconstruction, from original description, cropped. | |
|
Order |
|
|
Suborder |
Tetrophthalmi |
|
Diversity |
2 fossil spp |
† Tetrophthalmi Garwood et al., (2014)[1] is an extinct suborder of Opiliones created to accommodate two Paleozoic species. These are the only Opiliones which posses two pairs of eyes, a central pair and a lateral pair. This discovery is important because it successfully places fossils in a phylogeny, corroborates the ancestral state of the presence of two pairs of eyes in Opiliones, each of them lost independently and alters molecular divergence time estimates.
Subtaxa[]
No family has been described. Besides the new genus, which motivated the description, the authors included another genus, described ten years earlier from Scotland by Dunlop and collaborators (2004)[2].
- † Eophalangium Dunlop, Anderson, Kerp & Hass, 2004 - Devonian, Scotland.
- † Hastocularis Garwood et al., 2014 - Carboniferous, France.
References[]
- ↑ Garwood, R.J., Sharma, P.P., Dunlop, J.A., & Giribet, G. (2014) A Paleozoic Stem Group to Mite Harvestmen Revealed through ntegration of Phylogenetics and Development. Current Biology, 24, http://dx.doi.org/10.1016/j.cub.2014.03.039.
- ↑ Dunlop, J.A., Anderson, L.I. Kerp, H. & Hass, H. (2004) A harvestman (Arachnida: Opiliones) from the Early Devonian Rhynie cherts, Aberdeenshire, Scotland. Transactions of the Royal Society of Edinburgh, Earth science, 94, 341–354.
| †Tetrophthalmi Classification | ||
|---|---|---|
| Not assigned to family | †Eophalangium | †Hastocularis | |