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Australonema australis
Taxonomy
Cyclonema australis was named by Etheridge (1890) [Cyclonema? australis Etheridge 1890]. It is a 3D body fossil. Its type locality is Cave Hill Quarries, Lilydale, which is in a Pragian reef, buildup or bioherm limestone in the Lilydale Limestone Formation of Australia. It is the type species of Australonema.
It was recombined as Australonema australis by Tassell (1980), Frýda and Bandel (1997), Frýda and Manda (1997) and Wagner (2023).
It was recombined as Australonema australis by Tassell (1980), Frýda and Bandel (1997), Frýda and Manda (1997) and Wagner (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1890 | Cyclonema australis Etheridge p. 63 figs. pl. 9 f. 4-5 |
| 1891 | Cyclonema australis Etheridge p. 127 figs. pl. 19 f. 1-2 |
| 1894 | Cyclonema australis Etheridge p. 151 |
| 1913 | Cyclonema australis Chapman p. 227 |
| 1916 | Cyclonema australis Chapman p. 95 |
| 1972 | Cyclonema australis Yochelson and Linsley p. 7 |
| 1978 | Cyclonema australis Tassell p. 28 |
| 1980 | Australonema australis Tassell pp. 11 - 12 figs. pl. 2 f. 7-9 |
| 1997 | Australonema australis Frýda and Bandel p. 9 |
| 1997 | Australonema australis Frýda and Manda p. 82 |
| 2023 | Australonema australis Wagner p. 3166 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Australonema australis Etheridge 1890
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R., Jr. Etheridge 1890 | Shell turbinate, moderatey elongated, much expanded below, whorls six, ventricose, the body whorl disproportionately larger than the others, aperture more or less circular; umbilicus not visible; operculum unknown; whorls traversed by successive spiral keels, which are always simple, and nearly always equidistant, except on the ventral surface where they bE.'come rather closer, leaving very regular valleys between them, usually equal in width to that of three keels; the whole of the keels and valleys are crossed by fine, regular, oblique, equidistant, continuous, longitudinal strite. Length (average) one and a half inches. |