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rhyncholite , rhyncholite One of the beak-like structures which are considered to be the upper jaw structures of fossil cephalopods (Cephalopoda). They are approxi… Upper , up·per1 / ˈəpər/ • adj. 1. situated above another part: his upper arm the upper atmosphere. ∎ higher in position or status: the upper end of the soci… Mammutidae , Mammutidae (Mastodontidae; order Proboscidea, suborder Mammutoidea) An extinct, monospecific family (Mammut or Mastodon) of mastodons, comprising ele… Aquitanian , Aquitanian
1. The earliest age in the Miocene Epoch, preceded by the Chattian (Oligocene), followed by the Burdigalian, and with a lower boundary set… side-necked turtle , side-necked turtles See PLEURODIRA. from side to side , side / sīd/ • n. 1. a position to the left or right of an object, place, or central point: a town on the other side of the river on either side of th…
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dorsiventral