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Extinct family of worm-like animals From Wikipedia, the free encyclopedia
The Luolishaniidae[5] or Luolishaniida[Note 1] are a group of Cambrian and Ordovician[6] lobopodians with anterior 5 or 6 pairs of setiferous lobopods.[1][3][2] Most luolishaniids also have posterior lobopods each with a hooked claws, and thorn-shaped sclerites arranged as three or more per trunk segment.[4][1][2] The type genus is based on Luolishania longicruris Hou and Chen, 1989, from the Chengjiang Lagerstatte, South China.[5] They are presumed to have been benthic suspension or filter feeders.[4][1][3][2]
Luolishaniidae Temporal range: | |
---|---|
Collinsovermis (1), Luolishania (=Miraluolishania, 2), Ovatiovermis (3) and Facivermis (4) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
(unranked): | Panarthropoda |
Phylum: | †"Lobopodia" |
Family: | †Luolishaniidae |
Genera | |
New specimens of the previously enigmatic Facivermis show that it was a sessile tube-dweller, and part of this group.[3]
A 2023 analysis concluded, on the basis of numerous morphological similarities, that luolishaniids might be the closest known relatives of tardigrades.[7]
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