| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Valettaster ocellatus
Taxonomy
Oreaster ocellatus was named by Forbes (1848). It is not extant. Its type specimen is Natural History Museum, London, holotype BNHM E 2571. It is the type species of Valettaster.
It was recombined as Pentaceros ocellatus by Spencer (1905); it was recombined as Stauranderaster ocellatus by Spencer (1907); it was recombined as Tholaster ocellatus by Spencer (1913); it was recombined as Valettaster ocellatus by Valette (1915), Mercier (1935), Brünnich-Nielsen (1943), Rasmussen (1950), Spencer and Wright (1966), Rasmussen (1979), Breton (1985), Breton (1986), Smith et al. (1988), Lewis (1993), Helm (1997), Jagt (2000), Villier (2001), Reich and Frenzel (2002), Gale (2021).
It was recombined as Pentaceros ocellatus by Spencer (1905); it was recombined as Stauranderaster ocellatus by Spencer (1907); it was recombined as Tholaster ocellatus by Spencer (1913); it was recombined as Valettaster ocellatus by Valette (1915), Mercier (1935), Brünnich-Nielsen (1943), Rasmussen (1950), Spencer and Wright (1966), Rasmussen (1979), Breton (1985), Breton (1986), Smith et al. (1988), Lewis (1993), Helm (1997), Jagt (2000), Villier (2001), Reich and Frenzel (2002), Gale (2021).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1848 | Oreaster ocellatus Forbes p. 468 |
| 1850 | Oreaster ocellatus Forbes p. 329 figs. pl. 21, fig. 13 |
| 1876 | Oreaster ocellatus Quenstedt p. 99 figs. pl. 94, fig. 5 |
| 1882 | Oreaster ocellatus Carpenter p. 530 |
| 1905 | Pentaceros ocellatus Spencer pp. 85-86 figs. pl. 25, fig. 4 |
| 1907 | Stauranderaster ocellatus Spencer p. 121 figs. fig. 32 |
| 1913 | Tholaster ocellatus Spencer p. 138 figs. pl. 13, fig. 24 |
| 1915 | Valettaster ocellatus Valette pp. 57-59 figs. fig. 19 |
| 1935 | Valettaster ocellatus Mercier p. 39 figs. pl. 2, fig. 8a-b |
| 1943 | Valettaster ocellatus Brünnich-Nielsen p. 65 figs. pl. 4, fig. 29 |
| 1950 | Valettaster ocellatus Rasmussen p. 94 figs. pl. 10, fig. 22-23 |
| 1966 | Valettaster ocellatus Spencer and Wright p. U55 figs. fig. 52.1 |
| 1979 | Valettaster ocellatus Rasmussen p. 70 |
| 1985 | Valettaster ocellatus Breton pp. 91-93 |
| 1986 | Valettaster ocellatus Breton p. 29 |
| 1988 | Valettaster ocellatus Smith et al. pp. 194-195 figs. pl. 41, fig. 1 |
| 1993 | Valettaster ocellatus Lewis p. 67 |
| 1997 | Valettaster ocellatus Helm p. 116 |
| 2000 | Valettaster ocellatus Jagt pp. 428-429 figs. pl. 20, fig. 23-29; pl. 21, fig. 1-7 |
| 2001 | Valettaster ocellatus Villier p. 606 figs. fig. 9.13 |
| 2002 | Valettaster ocellatus Reich and Frenzel p. 182 |
| 2021 | Valettaster ocellatus Gale p. 725 figs. Figs 22E, 23A, 25G |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Valettaster ocellatus Forbes 1848
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. Breton 1985 | Form spherical, heavy. Extraxial plates weakly differentiated. Ambulacral groove ranging between third and half of the meridian. Ambulacrals compressed, very short. Axial outline rectangular or trapezoidal, very high. Abradial part flat, with large rounded surface of articulation with adambulacral plates. Adradial extremity narrow with reduced teeth. Adambulacral plates high to very high, slightly curved, with squared section. Actinal face squared and bearing rugosities but not well defined spine-bases. Lateral faces flat with a central obvious concavity. Upper margin truncated by faces of articulation with ambulacral plates. Extraxial skeleton in imbricated ossicle layers. Internally, a first layer of large, block like ossicles is overlapped by at least two secondary layers of ossicles decreasing in size eternally. Ossicles longer than wide at the equator, become equidimentional actinally. Primary ossicles thick, rounded to lobate. Internal face irregular, undulating. External face conical with a truncated external face with meandriform ornament. Slope of the cone with frequently tiny radiating pits. | |
| A.S. Gale 2021 | Abactinal ossicles with a broad flat outer surface that bears dense, irregularly radiating ridges and beads of imperforate stereom. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
|
|
||||
| Source: c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992 | |||||
Age range: base of the Early/Lower Cenomanian to the top of the Early/Lower Maastrichtian or 100.50000 to 66.00000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | United Kingdom | Valettaster ocellatus (59682) | |
| Early/Lower Cenomanian | France (Normandy) | Valettaster ocellatus (59658) | |
| Early/Lower Cenomanian | France | Valettaster ocellatus (59613 59619) | |
| Early/Lower Turonian | Czechia | Valettaster ocellatus (90516 90518) | |
| Turonian | France | Valettaster ocellatus (59637 59638) | |
| Coniacian | France | Valettaster ocellatus (72287) | |
| Late/Upper Coniacian - Early/Lower Santonian | France | Valettaster ocellatus (59659 59675) | |
| Middle Santonian - Late/Upper Santonian | France | Valettaster ocellatus (59652) | |
| Late/Upper Campanian | Belgium (Liege) | Valettaster ocellatus (32147) | |
| Early/Lower Maastrichtian | France (Landes) | Valettaster ocellatus (214121) | |
| Late/Upper Maastrichtian | Netherlands (Limburg) | Valettaster ocellatus (32167) | |
| Late/Upper Maastrichtian | Belgium (Liege) | Valettaster ocellatus (32157) | |
| Late/Upper Maastrichtian - Maastrichtian | Netherlands | Valettaster ocellatus (32162) | |
| Late/Upper Maastrichtian - Danian | Netherlands | Valettaster ocellatus (32160) |