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Megacricetodon (Collongomys)
Taxonomy
Megacricetodon (Collongomys) was named by Mein and Freudenthal (1971). Its type is Megacricetodon (Collongomys) lappi.
It was assigned to Megacricetodon by Mein and Freudenthal (1971).
It was assigned to Megacricetodon by Mein and Freudenthal (1971).
Subtaxa
Megacricetodon (Collongomys) lappi (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Megacricetodon (Collongomys) Mein and Freudenthal pp. 8, 24 |
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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.
Subg. †Megacricetodon (Collongomys) Mein and Freudenthal 1971
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†Megacricetodon (Collongomys) lappi Mein 1958
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Mein and M. Freudenthal 1971 | A l'intérieur du genre Megacricetodon le sous-genre Collongomys se distingue du sous-genre Megacricetodon par les caractères suivents:
En vue occlusal le foramen mentale de la mandibule apparaît du coté interne d'une droite tangente au bord de la m2. La longeur relative de la m1 par rapport à la m3 est plus faibles que chez les plus grandes espèces du sous-genre Megacricetodon. L'indice de longeur m1/m3 est 1,45. L'incisive inférieur, dépourvues de stries, montre une bande médiane aplatie sur la face antérieure. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Nowak 1999, Hendy et al. 2009, Ji et al. 2002, Lillegraven 1979 | |||||
Age range: base of the Burdigalian to the top of the Langhian or 20.45000 to 13.82000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burdigalian | France (Languedoc-Roussillon Region) | Collongomys lappi (36885) | |
| Langhian | Germany (Bayern) | Megacricetodon lappi (45597) | |
| MN 5 | Germany (Bayern) | Megacricetodon lappi (44975 44976) | |
| MN 5 | Germany (Baden-Wurttemberg) | Megacricetodon lappi (175727) | |
| MN 5 | Switzerland (Zürich) | Megacricetodon germanicus (46236 46271) | |
| MN 5 | Germany (Bavaria) | Megacricetodon lappi (205187) |