- encyclopedia.com plants-and-animals/zoology-and-…*Echinoidea (*sea urchins*, *sand-dollars*, *heart urchins*; phylum Echinodermata [1], subphylum Echinozoa [2])* A class of free-living echinoderms in which the...
- education-academia.github.io general-histology/…Detailed explanation-1: -Echinoids are marine animals belonging to the phylum Echinodermata and the class Echinoidea.
- animaldiversity.org accounts/Echinoidea/"Echinoidea" (On-line), Animal Diversity Web. Accessed July 01, 2024 at https://animaldiversity.org/accounts/Echinoidea/.
- museum.wa.gov.au research/collections/aquatic-…Echinodermata (echinoderms), class: Echinoidea (sea urchins, heart urchins & sand dollars). Collection Highlights | Updated 1 decade ago.
- marinespecies.org echinoidea/The classification used in the WoRMS and the World Echinoidea Database is that of Kroh & Smith (2010).
- tr.wikipedia.org EchinoideaVikipedi, özgür ansiklopedi. Echinoidea. Korunma durumu. Değerlendirilmedi (IUCN 3.1). ... Echinoidea, Echinozoa altşubesine bağlı bir hayvan sınıfıdır.[1].
- digitalatlasofancientlife.org Echinodermata EchinoideaEchinoidea comes from the Greek word ‘echinos’ meaning “spiny” and includes the sea urchins, sand dollars, and heart urchins.
- ucmp.berkeley.edu echinodermata/echinoidea.htmlIntroduction to the Echinoidea. Left: A long-spined sea urchins on a coral reef at Contadora Island, off the Pacific Coast of Panama.
- en.wikipedia.org Sea urchinSea urchins or urchins (/ˈɜːrtʃɪnz/) are typically spiny, globular animals, echinoderms in the class Echinoidea. ... Echinoidea.