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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Geraspididae
Taxonomy
Geraspididae was named by Pan and Chen (1993). It is not extant.
It was assigned to Polybranchiaspidida by Zhu and Gai (2007).
It was assigned to Polybranchiaspidida by Zhu and Gai (2007).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Geraspididae Pan and Chen |
| 2007 | Geraspididae Zhu and Gai p. 164 |
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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. †Geraspididae Pan and Chen 1993
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Carroll 1988, Kiessling 2004 | |||||
Age range: base of the Sheinwoodian to the top of the Lochkovian or 432.90000 to 413.02000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sheinwoodian | China (Anhui) | Geraspis rara (182531) | |
| Lochkovian | China | Kwangnanaspis subtriangularis (238425) |