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Phylogeny, ancestral ranges and reclassification of sand dollars
Lee, H.; Lee, K.-S.; Hsu, C.-H.; Lee, C.-W.; Li, C.-E.; Wang, J.-K.; Tseng, C.-C.; Chen, W.-J.; Horng, C.-C.; Ford, C.T.; Kroh, A.; Bronstein, O.; Tanaka, H.; Oji, T.; Lin, J.-P.; Janies, D. (2023). Phylogeny, ancestral ranges and reclassification of sand dollars. NPG Scientific Reports 13(1): 10199. https://dx.doi.org/10.1038/s41598-023-36848-0
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
Peer reviewed article  
Available in  Authors 
Keyword
    Marine/Coastal
Authors  Top 
  • Lee, H.
  • Lee, K.-S.
  • Hsu, C.-H.
  • Lee, C.-W.
  • Li, C.-E.
  • Wang, J.-K.
  • Tseng, C.-C.
  • Chen, W.-J.
  • Horng, C.-C.
  • Ford, C.T.
  • Kroh, A., more
  • Bronstein, O.
  • Tanaka, H.
  • Oji, T.
  • Lin, J.-P.
  • Janies, D.
Abstract
    Classification of the Class Echinoidea is under significant revision in light of emerging molecular phylogenetic evidence. In particular, the sister-group relationships within the superorder Luminacea (Echinoidea: Irregularia) have been considerably updated. However, the placement of many families remains largely unresolved due to a series of incongruent evidence obtained from morphological, paleontological, and genetic data for the majority of extant representatives. In this study, we investigated the phylogenetic relationships of 25 taxa, belonging to eleven luminacean families. We proposed three new superfamilies: Astriclypeoidea, Mellitoidea, and Taiwanasteroidea (including Dendrasteridae, Taiwana steridae, Scutellidae, and Echinarachniidae), instead of the currently recognized superfamily Scutelloidea Gray, 1825. In light of the new data obtained from ten additional species, the historical biogeography reconstructed shows that the tropical western Pacific and eastern Indian Oceans are the cradle for early sand dollar diversification. Hothouse conditions during the late Cretaceous and early Paleogene were coupled with diversification events of major clades of sand dollars. We also demonstrate that Taiwan fauna can play a key role in terms of understanding the major Cenozoic migration and dispersal events in the evolutionary history of Luminacea.
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