Leanchoilia is a megacheiran arthropod known from Cambrian deposits of the Burgess Shale in Canada and the Chengjiang biota of China.[1]
| Leanchoilia Temporal range:
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|---|---|
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| Leanchoilia superlata | |
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| Reconstruction of Leanchoilia superlata | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Megacheira |
| Order: | †Leanchoilida Størmer, 1944 |
| Family: | †Leanchoiliidae Raymond, 1935 |
| Genus: | †Leanchoilia Walcott, 1912 |
| Type species | |
| †Leanchoilia superlata Walcott, 1912
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| Other species | |
(but see text) | |
| Synonyms | |
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Synonyms of Leanchoilia
Synonyms of L. superlata
Synonyms of L. illecebrosa
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Description
edit
L. superlata was about 5 centimetres (2.0 in) long and had long, whip-like flagellae extending from its great appendages. Its internal organs are occasionally preserved within the substrate in three dimensions.[2][3] Their two pairs of eyes are protected and covered by their exterior head shields, with two eyes being located on each side.[4][5]
Species
editSeven species are tentatively accepted today: L. superlata (the type species), L. persephone and L. protogonia from the Burgess Shale, L. illecebrosa and L. obesa from the Chengjiang biota, ''L. robisoni from Kaili, and L.? hanceyi from the Spence Shale. L. superlata and L. persephone may however be examples of sexual dimorphism.[6][7][8]
Distribution
edit55 specimens of Leanchoilia are known from the Greater Phyllopod bed, where they comprise 0.1% of the community.[9]
See also
editReferences
edit- ^ "Burgess Shale: Leanchoilia superlata (an arthropod)". Smithsonian Institution National Museum of Natural History. Retrieved 6 July 2017.
- ^ Nicholas J. Butterfield (2002). "Leanchoilia guts and the interpretation of three-dimensional structures in Burgess Shale-type fossils". Paleobiology. 28 (1): 155–171. doi:10.1666/0094-8373(2002)028<0155:LGATIO>2.0.CO;2. S2CID 85606166.
- ^ Brigitte Schoenemann & Euan N. K. Clarkson (2012). "The eyes of Leanchoilia". Lethaia. 45 (4): 524–531. doi:10.1111/j.1502-3931.2012.00313.x.
- ^ Schoenemann, B., & Clarkson, E. N. K. (2012). The eyes of Leanchoilia. Lethaia, 45(4), 524–531.
- ^ García-Bellido, D. C., & Collins, D. (2007). Reassessment of the Genus Leanchoilia(Arthropoda, Arachnomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada. Palaeontology, 50(3), 693–709.
- ^ Diego C. García-Bellido & Desmond Collins (2007). "Reassessment of the genus Leanchoilia (Arthropoda, Arachnomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada". Palaeontology. 50 (3): 693–709. Bibcode:2007Palgy..50..693G. doi:10.1111/j.1475-4983.2007.00649.x.
- ^ Liu, Yu; Hou, Xian-Guang; Bergström, J. (2007). "Chengjiang arthropod Leanchoilia illecebrosa (Hou, 1987) reconsidered". GFF. 129 (3): 263–272. doi:10.1080/11035890701293263. S2CID 84150456.
- ^ He, Yu-Yang; Cong, Pei-Yun; Liu, Yu; Edgecombe, Gregory D.; Hou, Xian-Guang (2017). "Telson morphology of Leanchoiliidae (Arthropoda: Megacheira) highlighted by a new Leanchoilia from the Cambrian Chengjiang biota". Alcheringa: An Australasian Journal of Palaeontology. 41 (4): 581–589. doi:10.1080/03115518.2017.1320425. S2CID 90593555.
- ^ Caron, Jean-Bernard; Jackson, Donald A. (October 2006). "Taphonomy of the Greater Phyllopod Bed community, Burgess Shale". PALAIOS. 21 (5): 451–65. Bibcode:2006Palai..21..451C. doi:10.2110/palo.2003.P05-070R. JSTOR 20173022. S2CID 53646959.
External links
edit- "Leanchoilia superlata". Burgess Shale Fossil Gallery. Virtual Museum of Canada. 2011. Archived from the original on 2020-11-12.
Media related to Leanchoilia at Wikimedia Commons
Data related to Leanchoilia at Wikispecies- Leanchoilia illecebrosa Ancient Arthropod from Chengjiang The Virtual Fossil Museum
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