Eldonia is an extinct soft-bodied cambroernid animal of unknown affinity, best known from the Fossil Ridge outcrops of the Burgess Shale, particularly in the 'Great Eldonia layer' in the Walcott Quarry. In addition to the 550 collected by Walcott, 224 specimens of Eldonia are known from the Greater Phyllopod bed, where they comprise 0.43% of the community. Species also occur in the Chengjiang biota, and in Upper Ordovician strata of Morocco. The eldoniids form a clade that also includes Paropsonema, Rotadiscus, and Stellostomites.
* Eldonia berbera
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| - Eldonia (en)
- Eldonia (fr)
- Eldonia (it)
- エルドニア (ja)
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| - Eldonia est un genre éteint d'animaux énigmatiques à corps mou qui ont vécu du Cambrien inférieur à l'Ordovicien supérieur (525 à 425 millions d'années). Leurs restes ont été trouvés principalement dans les Schistes de Burgess au Canada et tout particulièrement dans la carrière Walcott (Walcott Quarry), mais aussi à Chengjiang en Chine et au Maroc. L'interprétation initiale du paléontologue Charles Doolittle Walcott comme étant une holothurie a été rapidement contestée. D'autres filiations ont été suggérées, qui n'ont pas résisté à l'épreuve du temps, comme la piste des siphonophores et des méduses. (fr)
- L'eldonia (gen. Eldonia) è un enigmatico animale estinto, vissuto tra il Cambriano inferiore e l'Ordoviciano superiore (525 – 425 milioni di anni fa). I suoi resti sono stati ritrovati principalmente nei famosi giacimenti di Burgess Shales (Canada) e di Chengjiang (Cina), ma anche in Marocco. (it)
- エルドニア（学名：Eldonia）とは、澄江動物群およびバージェス動物群に属する動物。絶滅種。皿のような形の動物である。 (ja)
- Eldonia is an extinct soft-bodied cambroernid animal of unknown affinity, best known from the Fossil Ridge outcrops of the Burgess Shale, particularly in the 'Great Eldonia layer' in the Walcott Quarry. In addition to the 550 collected by Walcott, 224 specimens of Eldonia are known from the Greater Phyllopod bed, where they comprise 0.43% of the community. Species also occur in the Chengjiang biota, and in Upper Ordovician strata of Morocco. The eldoniids form a clade that also includes Paropsonema, Rotadiscus, and Stellostomites.
* Eldonia berbera
* (en)
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| - Eldonia ludwigii life restoration.jpg (en)
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| - Eldonia ludwigii from the middle Cambrian Burgess Shale. (en)
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| - * E. ludwigii
* E. eumorpha
* E. berbera (en)
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| - * Yunnanomedusa
* Stellostomites (en)
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| - Eldonia is an extinct soft-bodied cambroernid animal of unknown affinity, best known from the Fossil Ridge outcrops of the Burgess Shale, particularly in the 'Great Eldonia layer' in the Walcott Quarry. In addition to the 550 collected by Walcott, 224 specimens of Eldonia are known from the Greater Phyllopod bed, where they comprise 0.43% of the community. Species also occur in the Chengjiang biota, and in Upper Ordovician strata of Morocco. Walcott's original interpretation as a holothurian was rapidly disputed. Alternative affinities to be suggested, which did not stand the test of time, included the siphonophores and a coelenterate medusa. It takes the form of a round, medusoid disk (which originally led to suggestions of a jellyfish affinity) with a C-shaped gut trace. The gut is recalcitrant and can be extracted using Hydrofluoric acid. The organism is frequently found in association with the lobopod Microdictyon, which is presumed to have fed on Eldonia. The eldoniids form a clade that also includes Paropsonema, Rotadiscus, and Stellostomites.
* Eldonia berbera
* Eldonia ludwigii, Walcott Quarry. About 4 cm long (en)
- Eldonia est un genre éteint d'animaux énigmatiques à corps mou qui ont vécu du Cambrien inférieur à l'Ordovicien supérieur (525 à 425 millions d'années). Leurs restes ont été trouvés principalement dans les Schistes de Burgess au Canada et tout particulièrement dans la carrière Walcott (Walcott Quarry), mais aussi à Chengjiang en Chine et au Maroc. L'interprétation initiale du paléontologue Charles Doolittle Walcott comme étant une holothurie a été rapidement contestée. D'autres filiations ont été suggérées, qui n'ont pas résisté à l'épreuve du temps, comme la piste des siphonophores et des méduses. (fr)
- L'eldonia (gen. Eldonia) è un enigmatico animale estinto, vissuto tra il Cambriano inferiore e l'Ordoviciano superiore (525 – 425 milioni di anni fa). I suoi resti sono stati ritrovati principalmente nei famosi giacimenti di Burgess Shales (Canada) e di Chengjiang (Cina), ma anche in Marocco. (it)
- エルドニア（学名：Eldonia）とは、澄江動物群およびバージェス動物群に属する動物。絶滅種。皿のような形の動物である。 (ja)
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