Lenisicaris
Lenisicaris Temporal range: Cambrian Stage 3 to Cambrian Stage 4
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A reconstruction of L. lupata's frontal appendage | |
A fossil of L.? pennsylvanica | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | †Dinocaridida |
Order: | †Radiodonta |
Family: | †Anomalocarididae |
Genus: | †Lenisicaris Wu et al, 2021 |
Species | |
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Lenisicaris is a Cambrian anomalocaridid radiodont, known from the Maotianshan Shales of China, and possibly the Kinzers Formation of Pennsylvania.[1]
Description[edit]
Lenisicaris is only known from frontal appendages, however these have several distinguishing traits, most noticeably the lack of auxiliary spines. [2]The type species, L. lupata has smaller, triangular endites, closely resembling those of Anomalocaris. L.? pennsylvanica has larger and more rectangular endites, with those on odd-numbered podomeres being smaller,[1] which casts doubt on whether it is truly a species of Lenisicaris.
Etymology[edit]
Lenisicaris derives from the word "lenis", meaning "smooth" from the non-spinose endites, and the word "caris", meaning "shrimp". The specific name lupata derives from the endites' shape resembling wolf fangs,[1] and the specific name pennsylvanica derives from the fact that the fossil was found in Pennsylvania.
References[edit]
- ^ a b c Wu, Yu; Ma, Jiaxin; Lin, Weiliang; Sun, Ao; Zhang, Xingliang; Fu, Dongjing (1 May 2021). "New anomalocaridids (Panarthropoda: Radiodonta) from the lower Cambrian Chengjiang Lagerstätte: Biostratigraphic and paleobiogeographic implications". Palaeogeography, Palaeoclimatology, Palaeoecology. 569. Bibcode:2021PPP...56910333W. doi:10.1016/j.palaeo.2021.110333. S2CID 233565727.
- ^ Potin, Gaëtan J.-M.; Daley, Allison C. (2023). "The significance of Anomalocaris and other Radiodonta for understanding paleoecology and evolution during the Cambrian explosion". Frontiers in Earth Science. 11. Bibcode:2023FrEaS..1160285P. doi:10.3389/feart.2023.1160285. ISSN 2296-6463.