annulosiphonate

形容词 adj.

英文释义

形容词 adj.
  1. Having ring-shaped deposits at the septal foramina or siphuncle which resemble a thickening of the connecting ring. not-comparable
    — Cyrtochoanitic orthoceracones or slightly curved cyrtoceracones in which the septal necks are longer than the brims, and in which the connecting ring does not attain the adoral septum. Deposits within the siphuncle, if present, limited to a continuous lamellose lining, exhibiting neither actinosiphonate nor annulosiphonate structure.

词源

From annulo- + siphonate.
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