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Scaphopoda    
掘足纲; 掘足纲

掘足纲; 掘足纲

Scaphopoda
n 1: small class of bilaterally symmetrical marine forms
comprising the tooth shells [synonym: {Scaphopoda}, {class
Scaphopoda}]


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  • Tusk shell - Wikipedia
    Scaphopoda ( skəˈfɒpədə ; from Ancient Greek σκᾰ́φης (skáphēs) 'boat' and πούς (poús) 'foot') is a class of shelled marine molluscs (invertebrates within the phylum Mollusca), whose members are known as scaphopods ( ˈskæfəˌpɒdz ) and commonly called tusk shells or tooth shells
  • Scaphopoda | INFORMATION | Animal Diversity Web
    Scaphopods are all marine species whose habitat ranges from shallow sub-littoral areas up to waters that are 4570 m deep Most scaphopods are found in waters greater than 6 m Scaphopods burrow in sediments ranging from muds to medium-coarse gravel The two orders of this group may have slightly differing burrowing behaviors
  • The scaphopoda - University of California Museum of Paleontology
    The scientific name Scaphopoda means "shovel foot," a term that refers to the "head" of the animal, which lacks eyes and is used for burrowing in marine mud and sediments The most distinctive feature of scaphopods is that the tubular shell is open at both ends, not just one end as in most molluscs
  • The Class Scaphopoda (Tusk Shells) Information | Earth Life
    The Scaphopoda are small but interesting class of molluscs Their common name is Tusk Shells because the curved, hollow and cylindrical shells resemble small tusks
  • Scaphopoda - an overview | ScienceDirect Topics
    One group of small marine epizoic and commensal clams has evolved as internal parasites in echinoderms Closely related to the bivalves, the Scaphopoda (Figure 2f), commonly known as tusk or tooth shells, with about 350 species, first occur in the Middle Ordovician over 450 million years ago
  • Scaphopoda (Tusk Shells) - Encyclopedia. com
    Scaphopoda is the most recent class of mollusks to appear in the fossil record, dating from at least the Mississippian Carboniferous period about 360 million years ago (mya)
  • SCAPHOPODA Definition Meaning - Merriam-Webster
    The meaning of SCAPHOPODA is a small class of Mollusca comprising bilaterally symmetrical marine forms that have a tapering tubular shell open at both ends, a pointed or spade-shaped foot for burrowing, many long slender prehensile oral tentacles about a mouth containing a radula, a rudimentary heart, no gills, and separate sexes whose
  • Tusk shell | Marine, Gastropod, Chitin | Britannica
    Tusk shell, any of several marine mollusks of the class Scaphopoda There are four genera of tusk shells (Dentalium is typical and most common) and more than 350 species
  • The Scaphopoda - PubMed
    The Scaphopoda are marine infaunal carnivores that feed on foraminiferans and other microorganisms selected and manipulated by their unique feeding tentacles or captacula
  • Introduction to Scaphopoda - naturemappingfoundation. org
    Filamentous feeding tentacles called captacula extend from the proboscis and pull food to the mouth There is no operculum Habitat: All specimens live in a marine environment away from areas with strong waves Some live in the deepest ocean trenches while a few species live in shallow waters





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