Neurovascular system and dental renewal in the rostrum of Spinosauridae: new descriptions and implications on non-olfactive snout sensitivity of dinosaurs
Author
Pittet, Frédéric
Jurassica Museum, Route de Fontenais 21, 2900 Porrentruy (Switzerland)
fpittet.geosciences@gmail.com
text
Geodiversitas
2026
2026-06-25
48
12
227
272
journal article
315729
10.5252/geodiversitas2026v48a12
53634d51-ed30-4d9e-a8ec-8aff017ac9ed
1638-9395
21226945
urn:lsid:zoobank.org:pub:EE1F570C-6953-4802-88A6-2B1A3D2A950D
TABLE 1. — Summary table of the distribution of foramina on the premaxillae of specimens MNHN.F.GDF365 and GDF366 (Cristatusaurus lapparenti Taquet & Russell, 1998) and MNHN.F.SAM124 (Spinosaurus maroccanus Russell, 1996) with highlighting the percentage of foramina counted on their respective rosettes. Symbol: *, indicates the number of “significant” foramina, with a diameter greater than or equal to 1 mm.| Taxon | Specimen | Number of foramina – right premaxilla | Number of foramina – left premaxilla | Total number of foramina | Number of foramina on the rosette (with percentage of total) |
|---|
| Cristatusaurus lapparenti | MNHN.F.GDF366 (juvenile) | 50 | 54 | 104 | 55 (52.88%) |
|---|
| (38*) 49 | (36*) | (74*) | 51 (68.92%)* |
| (43*) | | | |
| Cristatusaurus | MNHN.F.GDF365 (adult) | 49 | 42 | 91 | 71 (78.02%) |
|---|
| lapparenti | (43*) | (42*) | (85*) | 67 (78.82%)* |
|---|
| Spinosaurus | MNHN.F.SAM124 | 36 | 28 | 64 | 44 (68.75%) |
|---|
| maroccanus | (34*) | (27*) | (61*) | 43 (70,49%)* |
|---|