About: Spec: Echinodermata   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Unfair as it is to award some 50-million-year-old clades with barely 100 species with individual attention while relegating clades that are over half a billion years old and comprise many thousands of species to a couple of paragraphs, vertebrates (in particular, dinosaurs) are the focus of this site. In any case, echinoderms are another group that does not vary much from timeline to timeline.

AttributesValues
rdfs:label
  • Spec: Echinodermata
rdfs:comment
  • Unfair as it is to award some 50-million-year-old clades with barely 100 species with individual attention while relegating clades that are over half a billion years old and comprise many thousands of species to a couple of paragraphs, vertebrates (in particular, dinosaurs) are the focus of this site. In any case, echinoderms are another group that does not vary much from timeline to timeline.
dcterms:subject
abstract
  • Unfair as it is to award some 50-million-year-old clades with barely 100 species with individual attention while relegating clades that are over half a billion years old and comprise many thousands of species to a couple of paragraphs, vertebrates (in particular, dinosaurs) are the focus of this site. In any case, echinoderms are another group that does not vary much from timeline to timeline. There are some observable difference, however. In our home timeline, the echinoderm lineages of starfish (asteroids) and brittle-stars (ophiuroids) were seriously reduced, for a while, by the K-Pg event, and sea-cucumbers (holothuroids) did rather well throughout. In Spec, the lack of the impact event allowed many of these groups to survive to the present day.
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