Dibasterium

Dibasterium is an extinct genus of euchelicerate, a group of chelicerate arthropods. Fossils of the single and type species, D. durgae, have been discovered in deposits of the Middle Silurian period (Homerian age) in Herefordshire, England (in the United Kingdom). The name of the genus is derived from the Latin words dibamos ("on two legs") and mysterium ("mystery"), meaning "mystery on two legs" and referring to its prosomal (of the head) limbs. The species name durgae comes from Durga, a Hindu goddess with many arms.[1][2]

Dibasterium Temporal range: Homerian, 425 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Reconstruction of Dibasterium durgae
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Clade:	Euchelicerata
Genus:	†Dibasterium Briggs et al., 2012
Type species
†Dibasterium durgae Briggs et al., 2012

References

1. Dunlop, J. A.; Penney, D.; Jekel, D. (2020). "A summary list of fossil spiders and their relatives" (PDF). World Spider Catalog. Natural History Museum Bern. pp. 1–296.
2. Briggs, Derek E. G.; Siveter, Derek J.; Siveter, David J.; Sutton, Mark D.; Garwood, Russell J.; Legg, David (2012). "Silurian horseshoe crab illuminates the evolution of arthropod limbs". PNAS. 109 (39): 15702–15703. doi:10.1073/pnas.1205875109.