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Bathysiphon

Classification

    Phylum:  
Protista
    Subphylum:  
Sarcodina
    Class:  
Reticularea
    Subclass:  
Granuloreticulosia
    Order:  
Foraminiferida
    Suborder:  
Textulariina
    Superfamily:  
Ammodiscacea
    Family:  
Astrorhizidae
    Subfamily:  
Rhizammininae
    Formal Genus Name and Reference:  
Bathysiphon M. Sars in G. O. Sars, 1872, *1630, p. 251
    Type Species:  
B. filiformis, OD


Images

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Fossil ImageFossil ImageFossil ImageFossil ImageFossil ImageFossil ImageFossil Image
Fig. 105,4. *B. filiformis, Rec., Pac.O., X8 (*2117), Fig. 105,5. B. gigantea (Grubbs), Sil. (Niagaran), USA(Ill.), X16 (*2117), Fig. 105,6. B. arenacea Cushman, Rec., Pac.O., holotype, refigured, X39 (*2117), Fig. 105,7. B. flexilis Höglund, Rec., N.Sea, long. sec. showing imbricated layers of ?mica grains in fine-grained groundmass, X880 (*924), Fig. 105,8-10. B. hirudinea (Heron-Allen & Earland), Rec., S. Atl. (S.Georgia Is. ), 8, lectotype, here designated and figured, one of original syntypes but not figured previously (BMNH-ZF 3300), 9, top view of paratype, also figured by Heron-Allen & Earland (*914d, pl. 1, fig. 10) (BMNH-ZF 3300), 10, paratype, long. sec. redrawn, specimen figured (*914d, pl. l, fig. 9) (BMNH-ZF 3301), all X41 (*2117)


Synonyms

Rhabdamminella, Arbathysiphum, Hippocrepinella, Arenosiphon, Psammosiphonella, Micatuba, Argillotuba


Geographic Distribution

cosmop.


Age Range

    Beginning Stage in Treatise Usage:  
L.Cam. [1964 version => probably Epoch 2 in 2020 scale]
    Beginning International Stage:  
Cambrian Stage 3
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
521
    Ending Stage in Treatise Usage:  
Rec.
    Ending International Stage:  
Meghalayan
    Fraction Up In Ending Stage:  
100
    Ending Date:  
0


Description

Test free, large, to 50 mm in length, elongate, narrow, more or less flexible tube, which may have annular constrictions, wall agglutinated, commonly of siliceous sponge spicules and fine sand or other mineral matter in calcareous cement; aperture at one of open ends; protoplasm multi-nucleate, protoplasmic movement very sluggish, pseudopodia protruding only from one end of test where growth occurs, opposite end may be secondarily closed by secreted disc and contain intensely black matter consisting of waste rejected by protoplasm and packed into aboral end of test, additional disc secreted periodically to seal off such debris, filled sections of test eventually becoming detached (°1107).




References

Sars, G. O., 1872, Undersøgelser over Hardangerfjordens Fauna: Vidensk. -Selsk. Christiania, Forhandl., v. 1871, p. 246-255.


Museum or Author Information