Louisella is a genus of worm known from the Middle CambrianBurgess Shale. It was originally described by Charles Walcott in 1911 as a holothurian echinoderm,[1] and represents a senior synonym of Miskoia, which was originally described as an annelid.[2] 48 specimens of Louisella are known from the Greater Phyllopod bed, where they comprise < 0.1% of the community.[3] It has been stated to have palaeoscolecid-like sclerites,[4] though this is not in fact the case.[5]
It's also been interpreted as an annelid [6] and a sipunculan,[7] (neither on particularly compelling grounds) and a pripaulid,[8] but it is more conservatively considered to represent an ecdysozoan worm;[5] deep ecdysozoan relationships are not yet well resolved, making a more precise affiliation challenging.
Referencesedit
^Durham, J. W. (1974). "Systematic Position of Eldonia ludwigi Walcott". Journal of Paleontology. 48 (4): 750–755. JSTOR 1303225.
^Walcott, C. D. (1911). "Cambrian Geology and Paleontology II. Middle Cambrian annelids". Smithsonian Miscellaneous Collections. 57 (5): 109–145 – via Wikisource.
^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.
^Conway Morris, S. (1997). "The cuticular structure of the 495-Myr-old type species of the fossil worm Palaeoscolex, P. piscatorum (?Priapulida)". Zoological Journal of the Linnean Society. 119: 69–82. doi:10.1111/j.1096-3642.1997.tb00136.x.
^ abSmith, M.R. 2015: A palaeoscolecid worm from the Burgess Shale. Palaeontology 58, 973–979. doi:10.1111/pala.12210
^Madsen, F.J. 1957: On Walcott’s Supposed Cambrian Holothurians. Journal of Paleontology 31, 281–282.
^Howell, B.F. 1962: Worms. In Moore, R. C. (ed.), Treatise on Invertebrate Paleontology W (Miscellanea), W144–W177. Geological Society of America, New York.
^Conway Morris, S. 1977: Fossil priapulid worms. Special Papers in Palaeontology 20, 1–95.
External linksedit
"Louisella pedunculata". Burgess Shale Fossil Gallery. Virtual Museum of Canada. 2011. Archived from the original on 2020-11-12.
This article related to a Cambriananimal is a stub. You can help Wikipedia by expanding it.
louisella, genus, worm, known, from, middle, cambrian, burgess, shale, originally, described, charles, walcott, 1911, holothurian, echinoderm, represents, senior, synonym, miskoia, which, originally, described, annelid, specimens, known, from, greater, phyllop. Louisella is a genus of worm known from the Middle Cambrian Burgess Shale It was originally described by Charles Walcott in 1911 as a holothurian echinoderm 1 and represents a senior synonym of Miskoia which was originally described as an annelid 2 48 specimens of Louisella are known from the Greater Phyllopod bed where they comprise lt 0 1 of the community 3 It has been stated to have palaeoscolecid like sclerites 4 though this is not in fact the case 5 LouisellaTemporal range Middle Cambrian PreꞒ Ꞓ O S D C P T J K Pg N Retouched images from Walcott s description of Miskoia now synonymized with Louisella Scientific classification Domain Eukaryota Kingdom Animalia Stem group Priapulida Class Archaeopriapulida Family Miskoiidae Genus LouisellaWalcott 1911 Species L pedunculata Walcott 1911 It s also been interpreted as an annelid 6 and a sipunculan 7 neither on particularly compelling grounds and a pripaulid 8 but it is more conservatively considered to represent an ecdysozoan worm 5 deep ecdysozoan relationships are not yet well resolved making a more precise affiliation challenging References edit Durham J W 1974 Systematic Position of Eldonia ludwigi Walcott Journal of Paleontology 48 4 750 755 JSTOR 1303225 Walcott C D 1911 Cambrian Geology and Paleontology II Middle Cambrian annelids Smithsonian Miscellaneous Collections 57 5 109 145 via Wikisource 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 Conway Morris S 1997 The cuticular structure of the 495 Myr old type species of the fossil worm Palaeoscolex P piscatorum Priapulida Zoological Journal of the Linnean Society 119 69 82 doi 10 1111 j 1096 3642 1997 tb00136 x a b Smith M R 2015 A palaeoscolecid worm from the Burgess Shale Palaeontology 58 973 979 doi 10 1111 pala 12210 Madsen F J 1957 On Walcott s Supposed Cambrian Holothurians Journal of Paleontology 31 281 282 Howell B F 1962 Worms In Moore R C ed Treatise on Invertebrate Paleontology W Miscellanea W144 W177 Geological Society of America New York Conway Morris S 1977 Fossil priapulid worms Special Papers in Palaeontology 20 1 95 External links edit Louisella pedunculata Burgess Shale Fossil Gallery Virtual Museum of Canada 2011 Archived from the original on 2020 11 12 nbsp This article related to a Cambrian animal is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Louisella amp oldid 1159251684, wikipedia, wiki, book, books, library,
