20675 - Extremely Rare 5.35 Inch Pappocetus lugardi (Whale Ancestor) Incisor Rooted Tooth NWA Chondrite Polished Sections Enchodus mecoanalis

Enchodus mecoanalis

Mammals during the Mesozoic era were extremely rare although they had representation within the ecosystems in which dinosaurs reigned

https://nmgs

Nice specimen of this rare species of Lichid trilobite

Size of the tooth: 51 mm (2

20675 - Extremely Rare 5.35 Inch Pappocetus lugardi (Whale Ancestor) Incisor Rooted Tooth NWA Chondrite Polished Sections Enchodus mecoanalisPappocetus is a protocetid and a large amphibious aquatic carnivore. Pappocetus is also an ancestor of Basilosaurus. Rare specimen from an early evolutionary stage of the modern whale. In the phosphate basins of the Moroccan Western Sahara, the fossil record of these enormous vertebrates is very well represented, of this type of cetaceans that speak of an evolutionary transition from land to sea. The protocetids had large fore limbs and hindlimbs that