Name(s) in cluster
| †Ottoia Walcott 1911 | urn:lsid:organismnames.com:name:3574909 |
| †Ottoia | urn:lsid:organismnames.com:name:598757 |
| †Ottoia Walcott 1912 | urn:lsid:organismnames.com:name:1114899 |
| †Ottoia Walcott 1914 | urn:lsid:organismnames.com:name:5337042 |
Microreference
128
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