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Zoroasteridae
Taxonomy
Zoroasteridae was named by Sladen (1889). It is extant. It was considered monophyletic by Gale (1987) and Mah and Blake (2012).
It was assigned to Asteriadina by Spencer and Wright (1966); to Zorocallida by Downey (1970) and Eagle (2006); to Forcipulatida by Gale (2011); to Forcipulatida by Gale (1987), Blake (1989) and Mah and Blake (2012); and to Zorocallina by Ewin and Gale (2020).
It was assigned to Asteriadina by Spencer and Wright (1966); to Zorocallida by Downey (1970) and Eagle (2006); to Forcipulatida by Gale (2011); to Forcipulatida by Gale (1987), Blake (1989) and Mah and Blake (2012); and to Zorocallina by Ewin and Gale (2020).
Synonymy list
| Year | Name and author |
|---|---|
| 1889 | Zoroasteridae Sladen p. 416 |
| 1966 | Zoroasteridae Spencer and Wright p. U74 |
| 1970 | Zoroasteridae Downey p. 1 |
| 1987 | Zoroasteridae Gale p. 126 |
| 1989 | Zoroasteridae Blake p. 213 |
| 2006 | Zoroasteridae Eagle p. 83 |
| 2011 | Zoroasteridae Gale p. 60 |
| 2012 | Zoroasteridae Mah and Blake p. 3 |
| 2020 | Zoroasteridae Ewin and Gale p. 942 |
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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.
Fm. Zoroasteridae Sladen 1889
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. K. Eagle 2006 | Arms five, long, ridged, tapering distally, sub-cylindrical, with longitudinal and transverse series of abactinal ossicles; carinals prominent, each with large spine; disc small, with large primary disc ossicles; adambulacral plates alternately carinate, non-carinate, small and large; superambulacral plates present; pedicellariae straight (after Rowe & Gates |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils: base of the Barremian to the top of the Late/Upper Eocene or 129.40000 to 33.90000 Ma
Minimum age of oldest fossil (stem group age): 125.0 Ma
Minimum age of oldest fossil (stem group age): 125.0 Ma
Collections (17 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Barremian | Morocco | Zoroasteridae indet. (124947) | |
| Ypresian | Antarctica | Zoroaster fulgens (7296 42446 81846 98515 99090 203480 203491 203500 203504) | |
| Lutetian | Antarctica | Zoroaster fulgens (98416 203498 203499) | |
| Lutetian - Priabonian | Antarctica | Zoroaster fulgens (203489 203495 203503) | |
| Late/Upper Eocene | New Zealand (North Island) | Zoroaster whangareiensis (204562) |