Hemichoanella Teichert & Glenister, 1954
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publication ID |
https://doi.org/ 10.5852/ejt.2021.783.1601 |
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publication LSID |
lsid:zoobank.org:pub:071EAD63-05ED-4D6C-AC45-8719E6D79E0B |
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DOI |
https://doi.org/10.5281/zenodo.5793528 |
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persistent identifier |
https://treatment.plazi.org/id/5F4487AC-FF82-FF80-FE22-7D0AFC8F7E38 |
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treatment provided by |
Felipe |
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scientific name |
Hemichoanella Teichert & Glenister, 1954 |
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Genus Hemichoanella Teichert & Glenister, 1954
Type species
Hemichoanella canningi Teichert & Glenister, 1954 , from Emanuel Formation, stage III (Bendigonian– Chewtonian, see Legg 1978; Floian), Emanuel Creek, Kimberley Division, Western Australia; by original designation.
Diagnosis
Orthoconic longicones with circular conch cross section; sutures with deep, narrow siphonal lobe; siphuncle marginal, nearly tubular with rSD ≈ 0.3; septal necks hemichoanitic, connecting ring thick (compiled from Teichert & Glenister 1954 and Furnish & Glenister 1964).
Remarks
The genus is provisionally placed within the Cyptendoceratidae because of the presence of a relatively wide siphuncle with relatively long septal necks and concave, relatively thick connecting rings (see additional remarks below in chapter Cladistic Analysis).
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.