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Hemiaster (Bolbaster) planedeclivis
Taxonomy
Hemiaster planedeclivis was named by Gregory (1890). It is not a trace fossil. Its type locality is Morgan Limestone, which is in a Miocene coastal limestone in the Morgan Limestone Formation of Australia.
It was recombined as Hemiaster (Bolbaster) planedeclivis by McNamara (1987).
It was recombined as Hemiaster (Bolbaster) planedeclivis by McNamara (1987).
Sister species lacking formal opinion data
Bolbaster cotteaui, Bolbaster micranthus, H. aquisgranensis, H. arnaudi, H. blanckenhorni, H. branderi, H. breviusculus, H. calvani, H. canaliferus, H. cenomanensis, H. chargensis, H. cubicus, H. desmoulinsi, H. elongatus, H. faurai, H. frontacutus, H. gabrielis, H. grossouvrei, H. heberti, H. konickanus, H. koninckanus, H. kummeli, H. ligerensis, H. longuiformis, H. lovisatoi, H. maestrichtensis, H. medjesensis, H. minimus, H. moulinsanus, H. nasutulus, H. newtoni, H. nucleus, H. phrynus, H. ricordeaui, H. similis, H. solignaci, H. steinmanni, H. ungulata, H. uwajimensis, H. vomer, H. weatherbyi, H. whitei, H. cubicus, H. gabrielis, H. heberti, H. heberti, H. newtoni
Synonymy list
| Year | Name and author |
|---|---|
| 1890 | Hemiaster planedeclivis Gregory pp. 488-489 figs. pl. 14, figs. 6, 7 |
| 1987 | Hemiaster (Bolbaster) planedeclivis McNamara pp. 342-344 |
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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.
†Hemiaster (Bolbaster) planedeclivis Gregory 1890
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Kiessling 2004, Aberhan 1992 | |||||
Age range: Langhian or 15.98000 to 13.82000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Miocene - Middle Miocene | Australia (South Australia) | Hemiaster planedeclivis (90086) | |
| Langhian | Australia (South Australia) | Hemiaster planedeclivis (88322) | |
| Middle Miocene | Australia (Victoria) | Hemiaster planedeclivis (type locality: 72197) |