| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Heterelasma gibbosum
Taxonomy
Heterelasma gibbosum was named by Cooper and Grant (1976). Its type specimen is USNM 154343d, a shell (Articulated shell), and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Heterelasma gibbosum Cooper and Grant p. 2824 figs. Pl 769, figs 20-56 |
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.
†Heterelasma gibbosum Cooper and Grant 1976
show all | hide all
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 13 | 7.48 | 5.30 | 9.30 | 7.80 | 1.13 |
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Artinskian to the top of the Kungurian or 290.10000 to 274.40000 Ma
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | USA (Texas) | Heterelasma gibbosum (43596) | |
| Kungurian | USA (Texas) | Heterelasma gibbosum (43491 43492 43494 43510 43515 43516 43582 81638 101785 101811 105687 106037 106121) |