07190 - Top Huge 4.37 Inch Spinosaurid Dinosaur Partial Cervical Vertebra Bone Cretaceous KemKem Beds Study of this type of cetaceans

of this type of cetaceans that speak of an evolutionary transition from land to sea

K/T Boundary Sample Latest Cretaceous Trochu Canada Dinosaur Extinction

chiefly chalcedony

https://nmgs

Sepkoski 2002 and Thurmond 1969

07190 - Top Huge 4.37 Inch Spinosaurid Dinosaur Partial Cervical Vertebra Bone Cretaceous KemKem Beds Study of this type of cetaceansImpressive and rare authentic example of Spinosaurid (Spinosaurus or Sigilmassasaurus) dinosaur cervical vertebra bone. This type of remains, are really rare to find, especially well preserved. The vertebral body is preserved, but not its neural spine and transverse processes. It has some fractures that have been glued and slightly restored (filled). The different Geological Formations that make up the orography of the Cretaceous in the South East of