Dendrogramma, New Genus, with Two New Non-Bilaterian Species from the Marine Bathyal of Southeastern Australia (Animalia, Metazoa incertae sedis) – with Similarities to Some Medusoids from the Precambrian Ediacara

Jean Just; Reinhardt Møbjerg Kristensen; Jørgen Olesen

doi:10.1371/journal.pone.0102976

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Research Article

Dendrogramma, New Genus, with Two New Non-Bilaterian Species from the Marine Bathyal of Southeastern Australia (Animalia, Metazoa incertae sedis) – with Similarities to Some Medusoids from the Precambrian Ediacara

Jean Just ,

* E-mail: jean-just@mail.dk

Affiliation Section of Biosystematics, Natural History Museum of Denmark (Zoological Museum), University of Copenhagen, Copenhagen, Denmark
⨯
Reinhardt Møbjerg Kristensen,

Affiliation Section of Biosystematics, Natural History Museum of Denmark (Zoological Museum), University of Copenhagen, Copenhagen, Denmark
⨯
Jørgen Olesen

Affiliation Section of Biosystematics, Natural History Museum of Denmark (Zoological Museum), University of Copenhagen, Copenhagen, Denmark
⨯

Dendrogramma, New Genus, with Two New Non-Bilaterian Species from the Marine Bathyal of Southeastern Australia (Animalia, Metazoa incertae sedis) – with Similarities to Some Medusoids from the Precambrian Ediacara

Jean Just,
Reinhardt Møbjerg Kristensen,
Jørgen Olesen

Published: September 3, 2014
https://doi.org/10.1371/journal.pone.0102976

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Could they be Platyhelminthes?

Posted by theagingfanboy on 04 Sep 2014 at 16:53 GMT

Just from the look of the creatures, could they be very derived Platyhelminthes? A marine form with a large evertable pharynx might look like that if it was fixed. The Platyhelminthes have a blind-ended multiply-branched digestive system, which is what the pictures instantly reminded me of. Although turbellarians are bilaterally symmetrical, secondary modifications may make the symmetry less apparent, resulting in a small roundish flatworm with a large pharynx, rsembling a "stalk" on a mushroom.

No competing interests declared.

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Dendrogramma, New Genus, with Two New Non-Bilaterian Species from the Marine Bathyal of Southeastern Australia (Animalia, Metazoa incertae sedis) – with Similarities to Some Medusoids from the Precambrian Ediacara

Dendrogramma, New Genus, with Two New Non-Bilaterian Species from the Marine Bathyal of Southeastern Australia (Animalia, Metazoa incertae sedis) – with Similarities to Some Medusoids from the Precambrian Ediacara

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Could they be Platyhelminthes?

Posted by theagingfanboy on 04 Sep 2014 at 16:53 GMT