WoRMS source details
Bitner, M. A.; Melnik, V. P.; Zezina, O. N. (2013). New paedomorphic brachiopods from the abyssal zone of the north-eastern Pacific Ocean. Zootaxa. 3613(3): 281-288.
166271
10.11646/zootaxa.3613.3.6 [view]
Bitner, M. A.; Melnik, V. P.; Zezina, O. N.
2013
New paedomorphic brachiopods from the abyssal zone of the north-eastern Pacific Ocean
Zootaxa
3613(3): 281-288
Publication
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New Recent very small but sexually mature brachiopods have been found at abyssal depths (4580-4850 m) in the Clarion-Clipperton Zone of the Pacific Ocean. They are characterized by simple (under-developed, juvenile) morphological features, which are interpreted here as paedomorphic, indicating the importance of heterochrony in the evolution of deep-sea brachiopods. We have described these brachiopods as representing two new genera and species, i.e. Oceanithyris juveniformis Bitner & Zezina (Family ?Dyscoliidae) and Simpliciforma profunda Bitner & Zezina (Superfamily Gwynioidea).
Pacific, North East (Warm + cold temperate (boreal))
Abyssal, Deep-Sea
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2016-02-08 05:55:17Z
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Oceanithyris Bitner & Zezina, 2013 (original description)
Oceanithyris juveniformis Bitner & Zezina, 2013 (original description)
Simpliciforma Bitner & Zezina, 2013 (original description)
Simpliciforma profunda Bitner & Zezina, 2013 (original description)
Oceanithyris juveniformis Bitner & Zezina, 2013 (original description)
Simpliciforma Bitner & Zezina, 2013 (original description)
Simpliciforma profunda Bitner & Zezina, 2013 (original description)
Clarion Clipperton Zone for Abyssothyris wyvillei (Davidson, 1878)
Clarion Clipperton Zone for Neorhynchia strebeli (Dall, 1908)
Clarion Clipperton Zone for Oceanithyris juveniformis Bitner & Zezina, 2013
Clarion Clipperton Zone for Oceanithyris juveniformis Bitner & Zezina, 2013
Clarion Clipperton Zone for Pelagodiscus atlanticus (King, 1868)
Clarion Clipperton Zone for Simpliciforma profunda Bitner & Zezina, 2013
Clarion Clipperton Zone for Neorhynchia strebeli (Dall, 1908)
Clarion Clipperton Zone for Oceanithyris juveniformis Bitner & Zezina, 2013
Clarion Clipperton Zone for Oceanithyris juveniformis Bitner & Zezina, 2013
Clarion Clipperton Zone for Pelagodiscus atlanticus (King, 1868)
Clarion Clipperton Zone for Simpliciforma profunda Bitner & Zezina, 2013
Holotype SIO XI-52-23/1, geounit Clarion Clipperton Zone, identified as Oceanithyris juveniformis Bitner & Zezina, 2013
Holotype SIO XI-52-24/1, geounit Clarion Clipperton Zone, identified as Simpliciforma profunda Bitner & Zezina, 2013
Holotype SIO XI-52-24/1, geounit Clarion Clipperton Zone, identified as Simpliciforma profunda Bitner & Zezina, 2013
Etymology
Genus name 'Oceanithyris' referring to open-ocean occurrence of the species. [details]
Etymology
Specific epithet 'juveniformis' is referring to the juvenile morphological features. [details]
Etymology
Genus name 'Simpliciforma' is referring to the simple morphological characters of the genus. [details]
Taxonomic remark
The attribution of genus Oceanithyris to the family Dyscoliidae was only tentative as the genus lacks most ... [details]
