Jump to content

  • Bostrycapulus aculeata ponderosa

    Images:

    sixgill pete

    By sixgill pete (edited)

    Taxonomy

    Slipper Shell

    Kingdom: Animalia
    Phylum: Mollusca
    Class: Gastropoda
    Order: (clade) Caenogastropoda
    Family: Calyptraeidae
    Genus: Bostrycapulus
    Species: Bostrycapulus aculeata ponderosa
    Author Citation (H.C. Lea, 1843)

    Geological Time Scale

    Eon: Phanerozoic
    Era: Cenozoic
    Period: Neogene
    Sub Period: None
    Epoch: Pliocene
    International Age: Zanclean

    Stratigraphy

    Yorktown Formation
    Rushmere Member

    Provenance

    Collector: Don Rideout
    Date Collected: 06/11/2017
    Acquired by: Field Collection

    Dimensions

    Length: 41.1 mm
    Width: 30.6 mm
    Height: 21.1 mm

    Location

    Tar River
    Edgecombe County
    North Carolina
    United States

    Comments

    A nice slipper shell. Not a common find, especially in good shape.

     

    Forum Member MikeR has made the following notes on this sub-species in his gallery." Cambell, in his 1994 paper listed all spiny slipper shells as one of two sub species of B. aculeata. The subspecies ponderosa is inflated and can be variable in the amount of spines as stacked individuals will remove the spines of the one below them. Being the lifestyle is different from the extant B. aculeata, sub species ponderosa could be a different species." 

     

    I agree with Mike's assessment of this, this should possibly be considered it's own species. 

    Go to fossils Gastropods

    User Feedback


    fifbrindacier

    fifbrindacier

    Posted

    At the first view, i wouldn't have said it's a gastropod.

    Nice one.

    Share this comment

    Link to comment
    Share on other sites
    Coco

    Hi,

     

    Fifi, it is the same family than recent Crepidula fornicata from our coasts ! Gastropoda !

     

    Coco

    Share this comment

    Link to comment
    Share on other sites
    Plax

    a good Exogyra impersonator until one sees the underside!

    Share this comment

    Link to comment
    Share on other sites
    fifbrindacier

    fifbrindacier

    Posted

    Yes, the underside is typically from a gastropod, and well preserved !

    Share this comment

    Link to comment
    Share on other sites
    sixgill pete
    3 hours ago, Coco said:

    Hi,

     

    Fifi, it is the same family than recent Crepidula fornicata from our coasts ! Gastropoda !

     

    Coco

     

    Thats correct Coco. It is in the same family as Crepidula. We have C. fornicata here in our Pleistocene sediments.

    2 hours ago, Plax said:

    a good Exogyra impersonator until one sees the underside!

     

    Ir really does impersonate Exogyra well from the top.

    Share this comment

    Link to comment
    Share on other sites


    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now

×
×
  • Create New...