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  2. Mawson Formation - Wikipedia

    en.wikipedia.org/wiki/Mawson_Formation

    The Formation includes two main locations: Carapace Nunatak in South Victoria Land, representing a deposit of interbeds dominated by sandstones of fluvial to lacustrine origin. [14] The main outcrop of this location is notorious for the presence of a 37 m Hialoclastite, volcanic material accumulated, likely on a local lake of the same depth. [14]

  3. File:NautilusCutawayLogarithmicSpiral.jpg - Wikipedia

    en.wikipedia.org/wiki/File:NautilusCutaway...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  4. Warframe - Wikipedia

    en.wikipedia.org/wiki/Warframe

    Warframe is a free-to-play action role-playing third-person shooter multiplayer online game developed and published by Digital Extremes.First released for Windows personal computers in March 2013, it was later ported to PlayStation 4 in November 2013, Xbox One in September 2014, Nintendo Switch in November 2018, PlayStation 5 in November 2020, Xbox Series X/S in April 2021 and iOS in February ...

  5. Umbilicus (mollusc) - Wikipedia

    en.wikipedia.org/wiki/Umbilicus_(mollusc)

    The umbilicus of a shell is the axially aligned, hollow cone-shaped space within the whorls of a coiled mollusc shell. The term umbilicus is often used in descriptions of gastropod shells, i.e. it is a feature present on the ventral (or under) side of many (but not all) snail shells, including some species of sea snails, land snails, and ...

  6. Carapace Nunatak - Wikipedia

    en.wikipedia.org/wiki/Carapace_Nunatak

    The base of the Carapace Sandstone is not exposed. The Carapace Nunatak is the type locality for the Carapace Sandstone. [3] [4] Conformably overlying the Carapace Sandstone is 300 m (980 ft) of Kirkpatrick Basalt. The basalt lava flows include a thick layer of hyaloclastite breccia with beds of pillow lava at its base. About 140 m (460 ft ...

  7. Camera (cephalopod) - Wikipedia

    en.wikipedia.org/wiki/Camera_(cephalopod)

    Cutaway of a nautilus shell showing the chambers. Camerae (singular camera) are the spaces or chambers enclosed between two adjacent septa in the phragmocone of a nautiloid or ammonoid cephalopod molluscus. These can be seen in cross-sections of a nautilus shell and in the polished cross-sections of

  8. Septum (cephalopod) - Wikipedia

    en.wikipedia.org/wiki/Septum_(cephalopod)

    Cutaway of a nautilus shell showing the chambers. Septa (singular septum) are thin walls or partitions between the internal chambers of the shell of a cephalopod, namely nautiloids or ammonoids. As the creature grows, its body moves forward in the shell to a new living chamber, secreting septa behind it.

  9. Siphuncle - Wikipedia

    en.wikipedia.org/wiki/Siphuncle

    Simplified structure and mechanism of cephalopodic siphuncle. The siphuncle is used primarily in emptying water from new chambers as the shell grows. [2] To perform this task, the cephalopod increases the saltiness of the blood in the siphuncle, and the water moves from the more dilute chamber into the blood through osmosis.