| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Menodus heloceras
Taxonomy
Megaceratops helocerus was named by Cope (1873). It is a 3D body fossil. Its type locality is Horsetail Creek, which is in a Chadronian terrestrial horizon in the White River Formation of Colorado.
It was recombined as Symborodon heloceras by Cope (1873), Cope (1875) and Osborn (1902); it was recombined as Titanotherium heloceras by Osborn (1896) and Hay (1902); it was recombined as Menodus heloceras by Osborn (1929) and Emry (1975); it was recombined as Menops heloceras by Mader (1989) and Mader (1998).
It was recombined as Symborodon heloceras by Cope (1873), Cope (1875) and Osborn (1902); it was recombined as Titanotherium heloceras by Osborn (1896) and Hay (1902); it was recombined as Menodus heloceras by Osborn (1929) and Emry (1975); it was recombined as Menops heloceras by Mader (1989) and Mader (1998).
Synonymy list
| Year | Name and author |
|---|---|
| 1873 | Megaceratops helocerus Cope pp. 4 - 5 |
| 1873 | Symborodon heloceras Cope p. 14 |
| 1875 | Symborodon heloceras Cope p. 487 |
| 1896 | Titanotherium heloceras Osborn p. 179 |
| 1902 | Titanotherium heloceras Hay p. 636 |
| 1902 | Symborodon heloceras Osborn |
| 1929 | Menodus heloceras Osborn p. 524 figs. Plates XLVII, CXXIII, CXXIV; text figures 168 378 399, 409, 435, 436, 613, 639 |
| 1975 | Menodus heloceras Emry |
| 1989 | Menops heloceras Mader |
| 1998 | Menops heloceras Mader |
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.
†Menodus heloceras Cope 1873
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Ji et al. 2002, Mader 1998, Hendy et al. 2009, Lillegraven 1979, Carroll 1988 | |||||
Age range: Chadronian or 37.20000 to 33.90000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chadronian | USA (Colorado) | Megaceratops helocerus (16977) | |
| Chadronian | USA (Wyoming) | Menodus heloceras (16920) | |
| Early/Lower Chadronian | USA (Wyoming) | Menodus heloceras (16904) |