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Amphiaulastrea
Taxonomy
Amphiaulastrea was named by Geyer (1955) [Sepkoski's age data: J u Sepkoski's reference number: 920]. It is not extant.
It was assigned to Mitrodendronidae by Turnsek (1997) and Baron-Szabo (1997); to Scleractinia by Sepkoski (2002); to Amphiastraeidae by Morycowa and Decrouez (2006); and to Amphiastreidae by Baron-Szabo (2021).
It was assigned to Mitrodendronidae by Turnsek (1997) and Baron-Szabo (1997); to Scleractinia by Sepkoski (2002); to Amphiastraeidae by Morycowa and Decrouez (2006); and to Amphiastreidae by Baron-Szabo (2021).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1955 | Amphiaulastrea Geyer |
| 1997 | Amphiaulastrea Baron-Szabo p. 73 |
| 1997 | Amphiaulastrea Turnsek |
| 2002 | Amphiaulastrea Sepkoski |
| 2006 | Amphiaulastrea Morycowa and Decrouez |
| 2021 | Amphiaulastrea Baron-Szabo |
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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.
G. †Amphiaulastrea Geyer 1955
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†Amphiaulastrea aliensis Sikharulidze 1977
†Amphiaulastrea conferta Ogilvie 1897
†Amphiaulastrea rarauensis Morycowa 1971
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R.C. Baron-Szabo 2021 | Colonial, massive, hemispherical, cerioid. Budding due to ‘Taschenknospung’. Calices generally circular, embedded in vesicular dissepimental (coenenchymal) structures. Inner wall generally parathecal, often thickened by stereozone. Small number of corallites united laterally, covered by a shared wall. Radial elements (septa or costosepta) always compact and consist of simple trabeculae arranged in a single series or in a divergent system. S1 septa thicker than younger ones with columellar septum being the most dominant. Distal septal margins with very
delicate denticles, sometimes subobsolete or granular. Lateral septal surfaces ornamented by granulae, which can be very delicate and are aligned parallel to the distal margin. Lonsdaleoid septa present or absent. Intertrabecular distance ranging between 60 and 150 μm in septa. Endotheca generally abundant and vesicular, sometimes tabulate (axial region of the corallite). Pachythecal external wall thick. This genus has characteristics of the genera Amphiastrea and Aulastrea. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Early/Lower Tithonian to the top of the Aptian or 150.80000 to 113.00000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tithonian | Poland | A. sp. 2 (151577) | |
| Tithonian - Early/Lower Berriasian | Poland | A. sp. 1 (151545) | |
| Early/Lower Tithonian | Italy | A. sp. (154046) | |
| Late/Upper Tithonian | Czech Republic | A. conferta (36533) | |
| Middle Tithonian - Late/Upper Tithonian | Czech Republic | A. conferta (31283) | |
| Late/Upper Berriasian | Austria | A. sp. (192221) | |
| Valanginian | Bulgaria (Pernik) | A. sp. (87080) | |
| Early/Lower Barremian | Georgia | Amphiastraea aliensis (67512) | |
| Late/Upper Barremian - Early/Lower Aptian | Austria | A. rarauensis, A. conferta (221476) | |
| Aptian | Greece | A. delorenzoi, A. paronai, A. sp. (60373) | |
| Early/Lower Aptian | Romania | Amphiastraea rarauensis (69201) | |
| Early/Lower Aptian | Switzerland | A. rarauensis (72040) | |
| Early/Lower Aptian | Greece | A. guiscardii (60374 60375) A. keuppi, A. conferta (34719) | |
| Early/Lower Aptian | Germany | A. conferta (25535) A. rarauensis, A. conferta (221477) | |
| Early/Lower Aptian | France | A. aliensis (64081) |