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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Fragilicorona
Taxonomy
Fragilicorona was named by Johns (1997). It is considered to be a form taxon. Its type is Fragilicorona labricuspis.
It was assigned to Elasmobranchii by Johns (1997); and to Elasmobranchii by Chen (2002).
It was assigned to Elasmobranchii by Johns (1997); and to Elasmobranchii by Chen (2002).
Species
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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. †Fragilicorona Johns 1997
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†Fragilicorona brevirostrum Johns 1997
†Fragilicorona labribrevirostrum Johns 1997
†Fragilicorona labricuspis Johns 1997
†Fragilicorona labritricuspis Johns 1997
†Fragilicorona paralabritricuspis Chen 2002
†Fragilicorona tricuspis Johns 1997
†Fragilicorona unicuspis Johns 1997
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Wagner 2023, Carroll 1988 | |||||
Collections (41 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Smithian | Russian Federation | F. sp. (133501 149342) | |
| Aegean | Russian Federation | F. sp. (149343) | |
| Julian | China (Guizhou) | F. paralabritricuspis (131029 131030 131032) | |
| Norian | Canada (British Columbia) | F. labribrevirostrum (150061 150066 150143) F. labricuspis (150052 150057 150058 150067 150145 150228) F. labricuspis, F. brevirostrum, F. tricuspis, F. unicuspis (150099) F. labricuspis, F. labribrevirostrum (150068 150069 150071 150101 150147 150148 150151 150230) F. labricuspis, F. labribrevirostrum, F. labritricuspis, F. unicuspis (150063 150149) F. labricuspis, F. labribrevirostrum, F. unicuspis (150062 150064 150220) F. labricuspis, F. labritricuspis (150059 150144) F. labricuspis, F. labritricuspis, F. unicuspis (150051) | |
| Lacian | Canada (British Columbia) | F. sp. (47355 47356) | |
| Alaunian | Canada (British Columbia) | F. sp. (47369 47373 47376 47377 47378 47380 47382) |