NAME Ornatifilum lornense
AGE Earliest Lochkovian (basal Devonian).   AGE span: 416...411.2 mya
K&J CLASSIFICATION (2000) Fungi Imperfecti, Mycelia Sterilia.
FIGURE(S)
FIGURE REFERENCE
SPECIES, AUTHORITY O. lornense Wellman 1995, p. 271, pl. 5, figs. 6-8.
LOCATION Scotland.
ORIG DESCRIPTION* (Diagnosis): Branched filaments, 5-12 μm in diameter, entirely covered with an irregularly distributed external ornament consisting of a mixture of grana, coni, spinae, verrucae and occasional pila. There are no conspicuous perforations of the septa. Flask-shaped protuberances are often present.

(Description): Walls of filaments ca. 1 μm thick; the sculptural elements are generally less than 1 μm high and wide, except on the lateral branches and flask-shaped protuberances where the ornament is generally larger and more densely distributed, and the elements are up to 2.5 μm high. The branches are 68-110 μm apart and generally arranged at obtuse angles. Septa occur every 25-150 μm along the filaments, and also usually separate the branches from the main filament. The branches often occur in pairs, directly opposite one another across the main filament. The branches often swell immediately beyond the septum, then rapidly return to normal width, thus creating a flask shape. Occasionally filaments are preserved that appear to be enclosed within a levigate sheath.
COMMENTS*
PUBLICATION REFERENCE Wellman CH. 1995. “Phytodebris” from Scottish Silurian and Lower Devonian continental deposits; Review of Palaeobotany and Palynology, v. 84, p. 255-279.
K&J REMARKS
TYPE
ALL NAMES (Including synonyms) Ornatifilum lornense
SERIAL NUMBER 1171
PUBLIC COMMENTS
 *For source, see Publication Reference.