Search the Community
Showing results for tags 'extant pristis pristis'.
-
Extant Pristis pristis (Largetooth Sawfish) rostrum
MarcoSr posted a topic in General Fossil Discussion
A post by Tony on STH teeth a while back peaked my interest in extant sawfish rostral teeth. The two extant sawfish genera are Pristis and Anoxypristis. There is only a single extant Anoxypristis species, Anoxypristis cuspidata (Knifetooth or Narrow Sawfish). There are 4 extant species of Pristis, Pristis clavata (Dwarf Sawfish), Pristis pectinata (Smalltooth Sawfish), Pristis pristis (Largetooth Sawfish), and Pristis zijsron (Green Sawfish) Last 2016. This post is about a Pristis pristis (Largetooth Sawfish) rostrum. If you would also like to see pictures of an Anoxypristis cuspidata rostrum and/or a Pristis pectinata rostrum check out my previous TFF posts at the links below: http://www.thefossilforum.com/index.php?/topic/83865-extant-anoxypristis-cuspidata-knifetooth-or-narrow-sawfish-rostrum/&tab=comments#comment-895466 http://www.thefossilforum.com/index.php?/topic/86239-extant-pristis-pectinata-smalltooth-sawfish-rostrum/&tab=comments#comment-932077 Below is a picture of a Pristis pristis sawfish and other information from Last, White, de Carvalho, Seret, Stehmann, Naylor 2016 “Rays of the World: This rostrum is 19.5 inches by 3.5 inches at the posterior most rostral teeth. Pristis pristis rostrums have 14-24 equally spaced rostral teeth per side with the posterior most teeth located near the base of rostrum. This rostrum has 19 left and 18 right rostral teeth (Note one tooth is missing on the left side) and is shown below in dorsal and ventral views: Here is the basal view of the rostrum (shows a thin layer of skin with a good amount of cartilage visible): Dorsal side, two pictures of placoid scales on the rostrum surface with the second picture a close-up picture: Ventral Side, two pictures of placoid scales on the rostrum surface with the second picture a close-up picture: Continued in next reply Marco Sr.- 24 replies
-
- 9
-
- extant pristis pristis
- largetooth sawfish
-
(and 1 more)
Tagged with: