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  1. A mid-Cambrian tunicate and the deep origin of the ascidiacean …

  2. Ascidiacea World Database - World Register of Marine Species

  3. ଲୋକମାନେ ମଧ୍ୟ ପଚାରନ୍ତି
    Ascidiaceans are species rich and diverse with regards to life history, morphology and ecology, including colonial and solitary epibenthic forms 5, filter feeding and carnivorous representatives 7, and a biphasic lifecycle where a pelagic tadpole-like larva metamorphoses into an epibenthic sessile adult 5.
    The ascidiacean-like body of this new species suggests two alternative hypotheses for early tunicate evolution. The most likely scenario posits M. thylakos belongs to stem-group Tunicata, suggesting that a biphasic life cycle, with a planktonic larva and a sessile epibenthic adult, is ancestral for this entire subphylum.
    In modern ascidiacean tunicates, a number of structures are found in the area referred to herein as the atrial cavity. Most notable are the branchial basket, the atrial cavity proper, the stomach and intestines.
    Ascidians and pyrosomes are classified as follows. The golden or ink-spot sea squirt (Polycarpa aurata) is an ascidian. Like tunicates, we and other vertebrates belong to the phylum Chordata. Vertebrates belong to the subphylum Vertebrata, however, while tunicates belong to the subphylum Tunicata.
  4. Specification of distinct cell types in a sensory-adhesive organ ...

  5. Tunicate Facts: Ascidians and Bioluminescent Pyrosomes

  6. Seven ascidian (Tunicata) species from the North Eastern …

  7. COL | Ascidiacea World Database

  8. (PDF) Supplemental re-description of a deep-sea ascidian, …

  9. Gretchen Lambert: taxonomist, explorer, and ... - Wiley Online Library

  10. Seasonal distribution of solitary and colonial benthic ascidians ...

  11. Ascidian evolution and ecology - Nydam - Wiley Online Library

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