| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Megachasma applegatei
Taxonomy
Megachasma applegatei was named by Shimada et al. (2014). Its type specimen is LACM 122190, a tooth (complete tooth), and it is a 3D body fossil. Its type locality is Pyramid Hill Sand Member grit zone, which is in a Chattian marine sandstone in the Jewett Formation of California.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Megachasma applegatei Shimada et al. |
| 2019 | Megachasma applegatei Landini et al. p. 358 |
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.
†Megachasma applegatei Shimada et al. 2014
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. Shimada et al. 2014 | Megachasmid differing from all known species of Megachasma by having teeth with apicobasally shorter crowns that have strong lingual cusp inclination and commonly with one pair of lateral cusplets, and with massive bilobate roots with robust lingual protuberance. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: f = family, subp = subphylum | |||||
| References: Purdy 1988, Carroll 1988 | |||||
Age range: base of the Chattian to the top of the Burdigalian or 27.30000 to 15.98000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chattian | USA (Oregon) | Megachasma applegatei (45788) | |
| Chattian | USA (California) | Megachasma applegatei (type locality: 11601) | |
| Aquitanian | USA (Oregon) | Megachasma applegatei (169440) | |
| Aquitanian | USA (California) | Megachasma applegatei (58899 169441) | |
| Burdigalian | Peru (Ica) | Megachasma applegatei (100330) |