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Luidiidae
Taxonomy
Luidiidae was named by Sladen (1889) [Initial spelling Luidiinae, corrected by Verril 1889]. It is extant. Its type is Luidia. It was considered monophyletic by Gale (1987) and Mah and Blake (2012).
It was assigned to Platyasterida by Spencer and Wright (1966); to Diplozonina by Gale (1987); to Paxillosida by Gale (2011); and to Paxillosida by Blake (1987), Blake (1989) and Mah and Blake (2012).
It was assigned to Platyasterida by Spencer and Wright (1966); to Diplozonina by Gale (1987); to Paxillosida by Gale (2011); and to Paxillosida by Blake (1987), Blake (1989) and Mah and Blake (2012).
Subtaxa
Luidia (type genus)
Synonymy list
| Year | Name and author |
|---|---|
| 1889 | Luidiidae Sladen p. 244 |
| 1966 | Luidiidae Spencer and Wright p. U42 |
| 1987 | Luidiidae Blake p. 525 |
| 1987 | Luidiidae Gale p. 124 |
| 1989 | Luidiidae Blake p. 213 |
| 2011 | Luidiidae Gale p. 57 |
| 2012 | Luidiidae Mah and Blake p. 3 |
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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. Luidiidae Sladen 1889
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G. Luidia Forbes 1839
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Luidia alternata Say 1825
Luidia ciliaris Philippi 1837
†Luidia etchegoinensis Blake 1973
†Luidia hungarica Rakusz 1927
†Luidia sanjoaquinensis Blake 1973
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004, Blake 1990 | |||||
Age range
Maximum range based only on fossils: base of the Langhian to the top of the Pleistocene or 15.97000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 13.82 Ma
Minimum age of oldest fossil (stem group age): 13.82 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Langhian | Netherlands (Gelderland) | Luidia ciliaris (32040) | |
| Early/Lower Pliocene | USA (Florida) | Luidia sp. (35026) | |
| Pliocene | USA (California) | Luidia sp. (59924) Luidia sp., Luidia etchegoinensis (59922) | |
| Pleistocene | USA (California) | Luidia sanjoaquinensis (59923) |