| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Xiphostylus fragilis
Taxonomy
Xiphostylus fragilis was named by Pessagno et al. (1989). Its type specimen is USNM 424170 and is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1989 | Xiphostylus fragilis Pessagno et al. p. 234 figs. Pl. 3,figs. 3, 4, 12, 23 |
| 1989 | Xiphostylus fragilis Pessagno and Yang |
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.
†Xiphostylus fragilis Pessagno et al. 1989
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
| Source: p = phylum | |||||
| Reference: Kiessling 1999 | |||||
Age range: base of the Early/Lower Bajocian to the top of the Late/Upper Bajocian or 170.90000 to 168.20000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Bajocian | USA (Oregon) | Xiphostylus fragilis (127225 127226) | |
| Bajocian | USA (Oregon) | Xiphostylus fragilis (32733) | |
| Late/Upper Bajocian | USA (Oregon) | Xiphostylus fragilis (106403) |