annulosiphonate

A1N1N1U1L1O1S1I1P3H4O1N1A1T1E1

adjective

Having ring-shaped deposits at the septal foramina or siphuncle which resemble a thickening of the connecting ring.

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Meanings

adjectiveannulosiphonate (not comparable)
  1. not comparablebiologyHaving ring-shaped deposits at the septal foramina or siphuncle which resemble a thickening of the connecting ring.
    1 more example

    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.

    1935 August 23, R. H. Flower, K. E. Caster, “The Stratigraphy and Paleontology of Northwestern Pennsylvania. Part II: Paleontology. Section A: The Cephalopod Fauna of the Conewango Series of the Upper Devonian in New York and Pennsylvania”, in Bulletins of American Paleontology, volume 22, number 75, Ithaca, NY, page 225

Origin

From annulo- + siphonate.

Full word history & related roots →
Cite this entry
APA

annulosiphonate. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/annulosiphonate

MLA

“annulosiphonate.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/annulosiphonate. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “annulosiphonate,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/annulosiphonate.

Source: annulosiphonate on Wiktionary, CC BY-SA 4.0.