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Microforaminiferal linings assigned to 10 known genera have been recovered from Early Devonian (Lochkovian to Late Emsian) limestones from Victoria, New South Wales, and Queensland. These organic linings have been identified by comparison with normal-sized agglutinated foraminiferan genera known to occur in the associated sediments. Microforaminiferal linings with smooth walls and reticulate sculptured walls were present and the possible implications of these (diagenetic, relict structure, naked homeomorphs, or processing artifact) are discussed. Evidence is presented thatOrdovicinamay have a bilamellar organic wall lining.

The Cambrian bradoriid ?Parahoulongdongella sp. is shown to have a microreticulate (2nd order) surface sculpture. A possible organic sheet-like origin is proposed for this reticulation. The relation between this second order pattern and those found in Tertiary to Recent Ostracoda is discussed.I Microreticulation, Ostracoda, Palaeozoic, surface tension.

The organic linings of agglutinated foraminiferans from the Devonian are documented and described. These linings have been recovered in palynological residues from Australia, France, Pakistan and Siberia and range from the Lochkovian to the Frasnian. Six species are described as new:Hemisphaerammina coolamon, Psammosphaera garraay, Reophanus proavitus, Saccammina mea, Saccammina wingarri and Thurammina mirrka. Three species, with a wide geographical spread and a relatively limited stratigraphic range, may prove to have some utility in intercontinental correlation: Inauris tubulata Conkin & Conkin, Saccammina mea n. sp. and Saccammina wingarri n. sp.

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