Xandarella

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Xandarella
Temporal range: Cambrian stage 3
File:Xandarella spectaculum, Chengjiang biota 2.jpg
Fossil of X. spectaculum
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Artiopoda
Subphylum: Trilobitomorpha
(unranked): Xandarellida
Genus: Xandarella
Hou et al. 1991
Type species
Xandarella spectaculum
Hou et al. 1991
File:Xandarella.png
Drawing of Xandarella

Xandarella is an extinct genus of xandarellid artiopodan known from the Cambrian of China, the type species Xandarella spectaculum was described in 1991 from the Cambrian Stage 3 aged Chengjiang Biota in China.[1] Although an additional species Xandarella mauretanica was described from the Cambrian Stage 5 Tatelt Formation in Morocco in 2017, which preserved only the ventral anatomy,[2] it is later found that is a species of trilobite Gigoutella instead.[3] Like other xandarellids, the exoskeleton is unmineralised. The cephalon has pronounced eye slits, presumably derived from ancestral ventral stalked eyes.[4]

References

[edit | edit source]
  1. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  2. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  4. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

Lua error in Module:Taxonbar at line 165: attempt to index field 'wikibase' (a nil value).