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  2. Amphimedon compressa - Wikipedia

    en.wikipedia.org/wiki/Amphimedon_compressa

    Amphimedon compressa can grow to a length of 40 cm (16 in) and a diameter of 4 cm (1.6 in), but it is usually smaller in shallow water. The tree-like curved branches grow from a basal encrusting mass, but very occasionally this sponge grows as a small, unbranched, flattened hemisphere.

  3. Calcareous sponge - Wikipedia

    en.wikipedia.org/wiki/Calcareous_sponge

    All three sponge body plans (asconoid, syconoid, and leuconoid) can be found within the class Calcarea. Typically, calcareous sponges are small, measuring less than 10 cm (3.9 in) in height, and drab in colour. However, a few brightly coloured species are also known.

  4. Anoxycalyx joubini - Wikipedia

    en.wikipedia.org/wiki/Anoxycalyx_joubini

    The giant volcano sponge (Anoxycalyx joubini) is a species of Antarctic sponge. [1] It is one of the largest sponges in the world which can grow up to a diameter of 1.5 metres (5 feet) and 1.95 metres (6.5 feet) in height. [2] The species may have an extremely long lifespan, with estimates of up to 15,000 years. [3]

  5. Sponge - Wikipedia

    en.wikipedia.org/wiki/Sponge

    The term sponge derives from the Ancient Greek word σπόγγος spóngos. [9] The scientific name Porifera is a neuter plural of the Modern Latin term porifer, which comes from the roots porus meaning "pore, opening", and -fer meaning "bearing or carrying".

  6. Scoria - Wikipedia

    en.wikipedia.org/wiki/Scoria

    Scoria differs from pumice, another vesicular volcanic rock, in having larger vesicles and thicker vesicle walls, and hence is denser.The difference is probably the result of lower magma viscosity, allowing rapid volatile diffusion, bubble growth, coalescence, and bursting.

  7. Lava - Wikipedia

    en.wikipedia.org/wiki/Lava

    The word lava comes from Italian and is probably derived from the Latin word labes, which means a fall or slide. [2] [3] An early use of the word in connection with extrusion of magma from below the surface is found in a short account of the 1737 eruption of Vesuvius, written by Francesco Serao, who described "a flow of fiery lava" as an analogy to the flow of water and mud down the flanks of ...

  8. Hexactinellid - Wikipedia

    en.wikipedia.org/wiki/Hexactinellid

    Bolosoma stalked glass sponge. Hexactinellid sponges are sponges with a skeleton made of four- and/or six-pointed siliceous spicules, often referred to as glass sponges.They are usually classified along with other sponges in the phylum Porifera, but some researchers consider them sufficiently distinct to deserve their own phylum, Symplasma.

  9. Callyspongia aculeata - Wikipedia

    en.wikipedia.org/wiki/Callyspongia_aculeata

    Callyspongia (Cladochalina) aculeata, commonly known as the branching vase sponge is a species of sea sponge in the family Callyspongiidae. [1] Poriferans are typically characterized by ostia, pores that filter out plankton, with an osculum as the opening which water leaves through, and choanocytes trap food particles.