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Zemistephanus armatus
Taxonomy
Zemistephanus armatus was named by Arkell (1954). Its type specimen is UWA F21133, a shell, and it is a 3D body fossil. Its type locality is South of Moonyoonooka (707304), which is in a Bajocian shallow subtidal limestone in the Newmarracarra Limestone Formation of Australia.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Zemistephanus armatus Arkell p. 581 fig. 8 |
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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.
†Zemistephanus armatus Arkell 1954
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Bajocian or 170.90000 to 168.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Bajocian | Australia (Western Australia) | Zemistephanus armatus (type locality: 171225) |