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Megadontosuchus arduini
Taxonomy
Crocodylus arduini was named by De Zigno (1880). Its type specimen is MGPD 1Z, a skull (Nearly complete skull with lower jaw), and it is a 3D body fossil. Its type locality is Monte Duello, which is in a Bartonian marine limestone in the Orizzonte di Roncà Formation of Italy.
It was recombined as Crocodilus arduini by Zigno (1880); it was recombined as Megadontosuchus arduini by Mook (1955), Piras et al. (2007) and Brochu (2007).
It was recombined as Crocodilus arduini by Zigno (1880); it was recombined as Megadontosuchus arduini by Mook (1955), Piras et al. (2007) and Brochu (2007).
Synonymy list
| Year | Name and author |
|---|---|
| 1880 | Crocodylus arduini De Zigno |
| 1880 | Crocodilus arduini Zigno |
| 1955 | Megadontosuchus arduini Mook p. 2 |
| 2007 | Megadontosuchus arduini Brochu p. 919 |
| 2007 | Megadontosuchus arduini Piras et al. |
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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.
†Megadontosuchus arduini De Zigno 1880
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. C. Mook 1955 | Long, moderately slender snout; teeth relatively large in size, short and stout in proportions; premaxillo-maxillary suture on palate extending directly inward from the shallow premaxillary notch for about four-fifths of its length, then bending sharply inward and forward to meet its opposite at the midline slightly posterior to the level of the anterior borders of the fourth premaxillary teeth. Apparently four teeth in each premaxillary; of these the alveoli of the first are not preserved in the type of the type species; the second, third, and fourth are equal in size and are equidistant from one another. The premaxillary foramen on the palate is distinctive. It is relatively long and narrow. Its anterior and posterior thirds are distinctly rounded anteriorly and posteriorly, respectively, and their lateral borders are essentially parallel. The central third, however, expands rapidly to about twice the breadth of the anterior and posterior portions. This gives the whole aperture essentially the shape of an elongated quatrefoil.
The supratemporal fenestrae are of moderate size. The mandibular symphysis is long. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Benton 1983, Bush and Bambach 2015, Hendy et al. 2009, Carroll 1988 | |||||