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Josephoartigasia monesi
Taxonomy
Josephoartigasia monesi was named by Rinderknecht and Blanco (2008). Its type specimen is MNHN 921, a skull (Skull), and it is a 3D body fossil. Its type locality is Kiyu, which is in a Montehermosan/Ensenadan estuary/bay siltstone/claystone in the San José Formation of Uruguay.
Synonymy list
| Year | Name and author |
|---|---|
| 2008 | Josephoartigasia monesi Rinderknecht and Blanco |
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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.
†Josephoartigasia monesi Rinderknecht and Blanco 2008
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Rinderknecht and R. E. Blanco 2008 | Josephoartigasia monesi is the largest recorded rodent. Like the only previously known species of the genus Josephoartigasia (Josephoartigasia magna; Francis & Mones 1966), the lophs are covered by a slightly undulated layer of enamel and separated by extremely thin sheets of cement. It is differentiated from J. magna by its larger size and the almost equal occlusal surface area of all its molars. The relative length of the molar series is reduced and the incisors are proportionally mediolaterally wide. |