actinosiphonate

形容词 adj.

英文释义

形容词 adj.
  1. Having vertical lamellae on the siphuncle, hypothesized to be either outgrowths of the connecting ring, or the result of gerontic secretions. 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 actino- + siphonate.
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