Walcott, Charles Doolittle, 1911, Cambrian geology and paleontology. Middle Cambrian annelids.
Walcott, Charles Doolittle, 1911, Cambrian geology and paleontology. Middle Cambrian annelids., Smithsonian Miscellaneous Collections 57, pp. 109-144
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publication ID |
urn:lsid:zoobank.org:pub:435C1867630343448932DD64D83A3FD5 |
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document provided by |
ZooBank |
| Pikaidae | new family | 131 |
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