''Liwia'' is a genus of
nektaspid
Nektaspida (also called Naraoiida, Nektaspia and Nectaspida) is an extinct order (biology), order of non-Mineralized tissues, mineralised artiopodan arthropods. They are known from the mid-Cambrian to the upper Silurian. Originally classified as t ...
, a soft-bodied stem-group
chelicerate
The subphylum Chelicerata (from New Latin, , ) constitutes one of the major subdivisions of the phylum Arthropoda. It contains the sea spiders, horseshoe crabs, and arachnids (including harvestmen, scorpions, spiders, solifuges, ticks, and mite ...
.
It includes the following species, both are known from borehole samples several kilometers in depth from the
Zawiszyn Formation Zawiszyn may refer to the following places:
* Zawiszyn, Kuyavian-Pomeranian Voivodeship (north-central Poland)
* Zawiszyn, Masovian Voivodeship (east-central Poland)
* Zawiszyn, Warmian-Masurian Voivodeship (north Poland)
{{geodis ...
in Poland, which has also yielded ''
Peytoia infercambriensis
''Peytoia infercambriensis'' is a species of hurdiid radiodont in the genus ''Peytoia''.
''P. infercambriensis'' is the geologically oldest known radiodont; its remains date to the third age of the Cambrian. The type and only known specimen, ...
.''
*''Liwia plana''
Lendzion, 1975
*''Liwia convexa''
Lendzion 1975
References
Nektaspida
Fossils of Poland
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