Asteroidea ...
Antarctic Asteroidea: Morphological trends between deep-sea versus shallow taxa Depth has played an important role in the diversification of different groups of deep-sea Asteroidea. For example, the widely occurring Atlantic species Zoroaster fulgens Thomson, 1873 was found to display different morp...
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Zenodo
2023
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| Online Access: | https://dx.doi.org/10.5281/zenodo.8092163 https://zenodo.org/record/8092163 |
| Summary: | Antarctic Asteroidea: Morphological trends between deep-sea versus shallow taxa Depth has played an important role in the diversification of different groups of deep-sea Asteroidea. For example, the widely occurring Atlantic species Zoroaster fulgens Thomson, 1873 was found to display different morphotypes present at different depths (Howell et al . 2004). Mah (1998, 1999), Mah & Foltz (2011b), and Zhang et al . (2019) have all shown phylogenetic analyses of the Brisingida which have shown stemward, shallow-water clades, including the Antarctic Odinella Fisher, 1940 relative to derived clades, such as the Freyellidae that have diversified into bathyal and abyssal habitats. Although data collection on bathymetric distributions of Antarctic asteroid species remains ongoing, some trends are evident. Observations of USAP specimens suggest morphological differentiation with depth appear evident within different groups. Based on genera of the Goniasteridae and the Asterinidae documented here and in Mah (2011) ... : Published as part of Mah, Christopher L., 2023, New Genera, Species, and observations on the biology of Antarctic Valvatida (Asteroidea), pp. 1-88 in Zootaxa 5310 (1) on pages 76-77, DOI: 10.11646/zootaxa.5310.1.1, http://zenodo.org/record/8090240 ... |
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