placodont
/ˈplakə(ʊ)dɒnt
/noun
A fossil marine shellfish-eating reptile of the Triassic period, having short flat grinding palatal teeth and sometimes a turtle-like shell.
- Suborder Placodontia, superorder Sauropterygia: several families and genera, including Placodus.
- It had been suggested some time ago that turtles are closely related to the turtle-like placodonts.
- Specifically, it seems quite possible that the choristoderes were originally shellfish-eaters like placodonts and only secondarily became long-snouted fish eaters.
Origin
Late 19th century: from Greek plax, plak- 'flat plate' + odous, odont- 'tooth'.
- clapometer
- clap (or lay or set) eyes on
- clapped-out
- clapper
- clapperboard
- clapper bridge
- clapper rail
- clap skate
- clap someone in jail (or irons)
- clap something on
- clap stick
- Clapton, Eric
- claptrap
- claque
- claqueur
- clarabella
- Clare
- Clare, John
- Claremont
- clarence
- Clarenceux
- Clarendon, Earl of
- Clare of Assisi, St
- claret
- clarification