21172 - Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Dinosaurs 6 Pieces: 1 Class: CR2
Yard notes & kiln story
Description
21172 Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Dinosaurs 6 Pieces: 1 Class: CR2 6 Pieces: 1 Class: CR2 Shock stage: low Weathering grade: moderate Fayalite (mol%): 9 The Ancyloceratina were a diverse suborder of ammonite most closely related to the ammonites of order Lytoceratina