The first Early Ordovician conodont fauna records from central
New South Wales, comprising 16 species (belonging to 14 genera),
is described and illustrated. The fauna occurs in laminated
calcareous siltstones and allochthonous limestones of the
Hensleigh Siltstone, south of Wellington. Both lithologies are
interpreted as having been deposited in a lower slope
graptolotoc siltstone facies. Worldwide correlation of the
conodont fauna points to an age equivalent to the upper P.
elegans Zone of the North Atlantic succession or O. communis
Zone of the North American Midcontinental succession, according
well with the late Bendigonian age determined from graptolits in
overlaying beds of the Hensleigh Siltstone. Juanognathus
variabilis (32% of total elements), Acodus comptus (19%),
Bergstroemognathus extensus (14%, Drepanodus arcuatus (7%),
Reutterodus andinus (6%) and Acodus sweeto (6%) dominate the
assemblage, which is comprised of cosmopolitan, aw well as so-
called “cooler water”, species; with one exception, typ