2 Systematic Descriptions
49
Fig. 2.30 Apiculatisporites cornutus
Fig. 2.31 a Distal face, b proximal face
Apiculatisporites levis (Balme and Hennelly 1956) (Fig. 2.31).
Occurrence: Lower to Upper Permian of Collie–Muja Basins. More common in
Sakmarian than Upper Permian of Collie Basin (Bore B-2513
).
Description: Exceptionally small spore, rarely exceeding 28 µ in equatorial diameter. Amb circular. Laesurae distinct, simple, extending 2/3 to 3/4 of spore radius.
Exine sculptured with tiny spines.
Dimensions: 21–27 µ (15 specimens measured).
Remarks: A. levis is distinct from A. cornutus mainly by its minute size. Backhouse (1991) described a similar spore from Collie Basin under Rattiganispora
(Fig. 2.31).
Genus Anapiculatisporites (Potonie and Kremp 1955).
Diagnosis: Trilete. Amb triangular to rounded-triangular. Sculpture reduced on
proximal face to smooth over the contact area. Sculpture is echinate consisting of
wide elements; conical at their base and spinate at their ends.
Known distribution: Upper Carboniferous of the Ruhr (Potonie and Kremp 1955),
Upper Carboniferous of Canada (Kosanke 1950). Permian of New South Wales
(Balme and Hennelly 1956), Permian of South Africa (Hart 1963).
49
Fig. 2.30 Apiculatisporites cornutus
Fig. 2.31 a Distal face, b proximal face
Apiculatisporites levis (Balme and Hennelly 1956) (Fig. 2.31).
Occurrence: Lower to Upper Permian of Collie–Muja Basins. More common in
Sakmarian than Upper Permian of Collie Basin (Bore B-2513
).
Description: Exceptionally small spore, rarely exceeding 28 µ in equatorial diameter. Amb circular. Laesurae distinct, simple, extending 2/3 to 3/4 of spore radius.
Exine sculptured with tiny spines.
Dimensions: 21–27 µ (15 specimens measured).
Remarks: A. levis is distinct from A. cornutus mainly by its minute size. Backhouse (1991) described a similar spore from Collie Basin under Rattiganispora
(Fig. 2.31).
Genus Anapiculatisporites (Potonie and Kremp 1955).
Diagnosis: Trilete. Amb triangular to rounded-triangular. Sculpture reduced on
proximal face to smooth over the contact area. Sculpture is echinate consisting of
wide elements; conical at their base and spinate at their ends.
Known distribution: Upper Carboniferous of the Ruhr (Potonie and Kremp 1955),
Upper Carboniferous of Canada (Kosanke 1950). Permian of New South Wales
(Balme and Hennelly 1956), Permian of South Africa (Hart 1963).