Asteronychidae Ljungman, 1867
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publication ID |
https://doi.org/ 10.5852/ejt.2018.416 |
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publication LSID |
lsid:zoobank.org:pub:AD094812-5768-43E9-BCC2-9226E69F0820 |
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DOI |
https://doi.org/10.5281/zenodo.3816321 |
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persistent identifier |
https://treatment.plazi.org/id/039E87E8-1F65-302C-FDB4-F9287A33FE3E |
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treatment provided by |
Valdenar |
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scientific name |
Asteronychidae Ljungman, 1867 |
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Family Asteronychidae Ljungman, 1867 View in CoL
Type genus
Asteronyx Müller & Troschel, 1842 View in CoL (type species: A. loveni Müller & Troschel, 1842 View in CoL ).
Other genera
Astrodia Verrill, 1899b View in CoL , Astronebris Downey, 1967 View in CoL , Ophioschiza H.L. Clark, 1911 .
Diagnosis
Dorsal disc with thickened skin, few or no scales, radial shields bar-like, almost meeting in disc centre. Long, tapering arms, covered by thickened skin, lacking dorsal plates. Multiple columns of spiniform teeth, dental plate entire. Arms not branching. All vertebrae without oral bridge. Gonads restricted to disc. Arm spine articulation as slightly tumid regular stereom with large oval or round opening.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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