Invavita

Invavita piratica
Temporal range: Silurian
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Maxillopoda
Subclass: Pentastomida
Order: Cephalobaenida
Genus: Invavita
Species: I. piratica
Binomial name
Invavita piratica
(Siveter et al, 2015)

Invavita piratica is an extinct, parasitic species of tongue worm, provisionally assigned to the order Cephalobaenida. Despite the common name, tongue worms are actually highly modified arthropods, not worms; the Pentastomida are obligate parasites.[1][2] It possessed a head, a worm-like body, and two pairs of limbs.[3]

The 425-million-year-old Silurian fossil holotype specimen was found still attached to its fossilised host, a specimen of the ostracod Nymphatelina gravida, at an undisclosed location in England.[1] It is now in Oxford University Museum of Natural History. It was first described in the journal Current Biology in 2015.[2]

Etymology

The generic name is a New Latin compound word combining "invasor" and "avitus," and roughly translates as "ancient invasive one." The specific name refers to piracy; both names referring directly to the organism's obvious parasitic lifestyle. [2]

References

  1. 1 2 Gill, Victoria (22 May 2015). "A 425-million-year-old parasite found attached to host". BBC Online. Retrieved 22 May 2015.
  2. 1 2 3 Siveter, David J.; Briggs, Derek E.G.; Siveter, Derek J.; Sutton, Mark D. "A 425-Million-Year-Old Silurian Pentastomid Parasitic on Ostracods". Current Biology. doi:10.1016/j.cub.2015.04.035.
  3. "Requiem for an ancient tongue worm". Yale News. Retrieved 5 June 2015.
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