PhyloNimbus
Morphometrics
Blog
Docs
Login
Some holothurian spicules from the Ampthill Clay of Melton, near Hull (Yorkshire)
B. N. Fletcher
1962
Article
Geological Magazine
99(4):322-326
Find it at:
Taxa discussed in this work:
Achistrum (Cancellrum) bicordata
Achistrum (Cancellrum) pilgrimi
Achistrum (Cancellrum) trichordata
Achistrum bichordata
Taxonomy:
Achistrum (Cancellrum) bicordata
belongs to
Achistrum (Cancellrum)
- Fletcher (1962)
Achistrum (Cancellrum) pilgrimi
belongs to
Achistrum (Cancellrum)
- Fletcher (1962)