| Fibulacaris | |
|---|---|
| ๐ Image | |
| Holotype specimen of Fibulacaris nereidis (ROMIP 65380) | |
| ๐ Image | |
| Diagram | |
| Scientific classification ๐ Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Order: | โ Hymenocarina |
| Genus: | โ |
Fibulacaris is a monotypic genus of fossil arthropod known only by one species, Fibulacaris nereidis, discovered from the Cambrian Burgess Shale of Canada.[1] It was characterized by a bivalved carapace with an inverted rostrum, sandwiching the slender body with stalked eyes and homonomous appendages.[1] It was probably an actively swimming filter feeder and possibly swam upside-down like some branchiopod crustaceans and horseshoe crabs.[1] Phylogenetic analysis suggest it was a relative or member of Hymenocarina, which contains other bivalved arthropods.[1][2]
References
[edit]- ^ a b c d Izquierdo-Lรณpez, Alejandro; Caron, Jean-Bernard (2019). "A possible case of inverted lifestyle in a new bivalved arthropod from the Burgess Shale". Royal Society Open Science. 6 (11) 191350. Bibcode:2019RSOS....691350I. doi:10.1098/rsos.191350. PMC 6894550. PMID 31827867.
- ^ Izquierdo-Lรณpez, Alejandro; Caron, Jean-Bernard (2021). Zhang, Xi-Guang (ed.). "A Burgess Shale mandibulate arthropod with a pygidium: a case of convergent evolution". Papers in Palaeontology. 7 (4): 1877โ1894. Bibcode:2021PPal....7.1877I. doi:10.1002/spp2.1366. ISSN 2056-2799. S2CID 236284813.
