Copilot
Your everyday AI companion
About 235 results
  1. Molecular Phylogeny and Morphological Evolution of the …

  2. People also ask
    A well-supported phylogeny of echinoderm classes has eluded morphological, embryological, molecular, and combined analyses.
    From this body of work it is apparent that ( i) echinoids (sea urchins) and holothuroids (sea cucumbers) are related, and ( ii) crinoids (sea lilies) are the sister taxon to extant eleutherozoan classes (asteroids, ophiuroids, echinoids, and holothuroids).
    Clades A, B, C and D encompass the two acantharian orders Holacanthida and Chaunacanthida, except for Phyllostaurus echinoides (Ei 68) and Acanthostaurus purpurascens (Vil 45) in clade B ( Figure 1, Figure 2 ), both originally described as belonging to the Arthracanthida.
    The Class Echinoidea contains some familiar marine creatures - sea urchins and sand dollars, along with heart urchins. These animals are echinoderms, so they are related to sea stars (starfish) and sea cucumbers.
  3. Zooplankton of the South Atlantic Ocean: Genus Phyllostaurus

  4. Echinoids - British Geological Survey

    WEBEchinoids are marine animals belonging to the phylum Echinodermata and the class Echinoidea. They have a hard shell (referred to as a test) …

    • Estimated Reading Time: 7 mins
    • Larval and life-cycle patterns in echinoderms - Canadian Journal of …

    • Evolutionary Trends and Their Functional Significance in the Post ...

    • Phylogenetic relationships of extant echinoderm classes

    • Echinoidea Profile: Facts About the Class Echinoidea

      WEBOct 1, 2018 · Introduction to Class Echinoidea. The Class Echinoidea contains some familiar marine creatures - sea urchins and sand dollars, along with heart urchins. These animals are echinoderms, so they are …

    • Evolution of Rhizaria: new insights from phylogenomic analysis of ...

    • Phylogenetic relationships of extant echinoderm classes - Ingenta …