| / | search | 
| ← | previous | 
| → | next | 
 
 
 
 
pants: ELECTROLYTES FOR TRILOBITES pants: I, THE SECOND GAYEST EXTINCT MARINE ARTHROPOD THAT OCCURRED ABUNDANTLY DURING THE PALEOZOIC ERA, WITH A CARAPACE OVER THE FOREPART, AND A SEGMENTED HIND PART DIVIDED LONGITUDINALLY INTO THREE LOBES pants: WHAT PART OF SEGMENTED HIND DON'T YOU UNDERSTAND