| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Semihsuum
Taxonomy
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Semihsuum Pessagno et al. |
| 1997 | Semihsuum Hull |
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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. †Semihsuum Pessagno et al. 1993
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 1999 | |||||
Age range: base of the Late/Upper Aalenian to the top of the Bathonian or 174.70000 to 165.30000 Ma
Collections (16 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Aalenian | Japan | S. sp. B5, S. magnum (54166) | |
| Bajocian | USA (California) | S. biscuithillense, S. brokencotense, S. inexploratum, S. sourdoughense, S. sp. (51632) S. biscuithillense, S. sp. (51631) S. sp. (51633 51634 51635) | |
| Late/Upper Bajocian | USA (California) | S. sp. (51639 51640 51641 51642) | |
| Bathonian | USA (California) | S. sp. (51651) | |
| Early/Lower Bathonian | USA (California) | S. sp. (51644 51645 51646 51647 51648) |