| Velumbrella Temporal range: Early Cambrian–Middle Cambrian PreꞒ Ꞓ O S D C P T J K Pg N | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Clade: | †Cambroernida |
| Class: | †Eldonioidea |
| Family: | †Rotadiscidae (?) |
| Genus: | †Velumbrella Stasińska 1960 |
| Type species | |
| V. czarnockii Stasińska 1960 | |
Velumbrella is an eldonioid known from the Early to Middle Cambrian of Poland. The fossils depict a scleritosed disk with a U-shaped gut.
Velumbrella was originally thought to be related to the hydrozoan order Trachylenida, or possibly to Ediacaria or Beltanella which were considered to be Cambrian jellyfish. Upon erecting the class Eldonioidea, Dzik assigned Vellumbrella to Eldoniidae rather than Rotadiscidae on account of its radial ribs.
Several authors (including Dzik) later noted the similarity between Velumbrella cznarnockii and Pararotadiscus guizhouensis (which was initially described as Rotadiscus guizhouensis). A more recent review tenatively placed Velumbrella in the Rotadiscidae (along with the more confidently-assigned Pararotadiscus), noting that the rotadiscids are distinguished from other eldonioid families by concentric ornamentations on the dorsal surface.
References
- ^ Schroeder, Paterson & Brock 2018, pp. 80–81
- Masiak & Żylińska 1994, pp. 330, 336
- Masiak & Żylińska 1994, p. 336
- Stasińska 1960, p. 342
- Stasińska 1960, p. 343
- Dzik 1991, p. 51
- Dzik, Zhao & Zhu 1997, pp. 387–389
- Zhu, Zhao & Chen 2002, p. 179
- Schroeder, Paterson & Brock 2018, p. 84
Works cited
- Dzik, Jerzy (1991). "Is fossil evidence consistent with traditional views of the early metazoan phylogeny?" (PDF). In Simonetta, AM; Conway Morris, S (eds.). The early evolution of Metazoa and the significance of problematic taxa. Oxford: Clarendon Press. pp. 47–56.
- Dzik, Jerzy; Zhao, Yuanlong; Zhu, Maoyan (1997). "Mode of life of the Middle Cambrian eldonioid lophophorate Rotadiscus" (PDF). Palaeontology. 40 (2): 385–396.
- Masiak, M.; Żylińska, A. (1994). "Burgess Shale-type fossils in Cambrian sandstones of the Holy Cross Mountains" (PDF). Acta Palaeontologica Polonica. 39 (4): 329–340. Retrieved 28 December 2024.
- Schroeder, Natalie I.; Paterson, John R.; Brock, Glenn A. (2018). "Eldonioids with associated trace fossils from the lower Cambrian Emu Bay Shale Konservat-Lagerstätte of South Australia". Journal of Paleontology. 92 (1): 80–86. Bibcode:2018JPal...92...80S. doi:10.1017/jpa.2018.6. ISSN 0022-3360. S2CID 197586878.
- Stasińska, A. (1960). "Velumbrella czarnockii n. gen., n. sp. - Meduse du Cambrien Inferieur des Monts de Sainte-Croix" (PDF). Acta Palaeontologica Polonica. 5 (3): 337–346. Retrieved 29 December 2024.
- Zhu, Mao-Yan; Zhao, Yuan-Long; Chen, Jun-Yuan (2002-03-01). "Revision of the Cambrian discoidal animals Stellostomites eumorphus and Pararotadiscus guizhouensis from South China". Geobios. 35 (2): 165–185. Bibcode:2002Geobi..35..165Z. doi:10.1016/S0016-6995(02)00025-6. ISSN 0016-6995.
| Taxon identifiers | |
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| Velumbrella | |
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