Leanchoilia

Leanchoilia; Temporal range: Cambrian Stage 3–Middle Cambrian PreꞒ Ꞓ O S D C P T J K Pg N
	Fossil specimen
	Reconstruction
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Megacheira
Order:	†Leanchoilida; Størmer, 1944
Family:	†Leanchoiliidae; Raymond, 1935
Genus:	†Leanchoilia; Walcott, 1912
Species
	Leanchoilia superlata (type); Leanchoilia obesa He et al.; Leanchoilia persephone Simonetta; (but see text)

Leanchoilia is an arachnomorph arthropod known from Cambrian deposits of the Burgess Shale in Canada and the Chengjiang biota of China.^[1] It was about 5 centimetres (2.0 in) long and had long, whip-like feelers mounted on frontal arm-like appendages. Its internal organs are occasionally preserved within the substrate in three dimensions.^[2]^[3]

Three species are tentatively accepted today: the type species L. superlata, L. obesa and the recently revalidated L. persephone. They may however be examples of sexual dimorphism.^[4] Template:Gpb abundance

References

^ "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.
^ 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.
^ 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. doi:10.1111/j.1475-4983.2007.00649.x.

External links

Template:Burgess Shale species
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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[SmithsonianWeb-1] "Burgess Shale: Leanchoilia superlata (an arthropod)". Smithsonian Institution National Museum of Natural History. Retrieved 6 July 2017.

[Butterfield2003-2] 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.

[Schoenemann2012-3] 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.

[4] 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. doi:10.1111/j.1475-4983.2007.00649.x.

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