Rhabdomeson, Young and Young, 1874
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publication ID |
https://doi.org/ 10.26879/585 |
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publication LSID |
lsid:zoobank.org:pub:6F0DE44D-32BD-4882-9C38-FF76446D15EA |
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persistent identifier |
https://treatment.plazi.org/id/2F15F14D-FF8F-FF85-0585-A882FC44FB1D |
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treatment provided by |
Felipe |
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scientific name |
Rhabdomeson |
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Genus RHABDOMESON Young and Young, 1874 View in CoL [= Coeloconus Ulrich, 1889 ]
Type species. Rhabdomeson progracile Wyse Jackson and Bancroft, 1995 View in CoL ( ICZN Opinion 1874). Lower Carboniferous ; Ireland .
Diagnosis. Rhabdomesid with delicate dendroid colony with irregularly dichotomizing branches. Autozooecia regularly budding around central axial cylinder in an annual or spiral manner. Hemisepta common. Autozooecial apertures elliptical, pyriform or rhombic, closely spaced, arranged in quincunx on colony surface; of constant or variable dimensions around branch. Stylets abundant and structurally diverse (modified after Wyse Jackson and Bancroft, 1995).
Remarks. Rhabdomeson differs from other rhadbomesines in the presence of a central axial cylin- der. Rhabdomeson differs from Silenella Gorjunova, 1992 in the absence of aktinotostyles and from Pseudorhabdomeson Gorjunova, 2002 in having a rounded axial tube instead of a polygonal one as well as the presence of differentiated styles instead of aktinotostyles.
Occurrence. Middle Devonian to Upper Permian; worldwide.
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