Texas mosasaur bones need help identification

[vietnamfossil]

Hello everyone!

I just got some but I have no idea about it.The only information that seller gave me is those mosasaur bones from Ozan fm, Texas. So I will post some photos of them for you to have a look if you familiar with them and can tell the ID.

here are they:

Bone 1: 

 

  

 

 

Bone 2: 

 

 

Thank you! 

[jpc]

bone 1 is a dorsal vert, bone 2 is a caudal vert.  It maybe possible to tell what family but that is way beyond my pay grade.

[vietnamfossil]

8 hours ago, jpc said:

bone 1 is a dorsal vert, bone 2 is a caudal vert.  It maybe possible to tell what family but that is way beyond my pay grade.

Thank you very much. Is that possible to identify to species?

[pachy-pleuro-whatnot-odon]

The first bone is a lumbar vertebra, whereas the second is a terminal caudal vertebra (which you can tell, amongst others, from the hypapophyses at the base of the vertebra). Other than as to position along the spine, mosasaur vertebrae are, unfortunately, rather undiagnostic. There are some ways to differentiate plioplatecarpines from mosasaurines, but I'm not too versed on this.

 

(source)

Edited March 7, 2023 by pachy-pleuro-whatnot-odon

[jpc]

It never occurred to me that mosasaurs only have distal chevrons.