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labyrinthodontamore about labyrinthodonta

labyrinthodonta


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Labyrinthodonta  \Lab`y*rin`tho*don"ta\,  n.  pl  [NL.  See 
  {Labyrinthodon}.]  (Paleon.) 
  An  extinct  order  of  Amphibia,  including  the  typical  genus 
  Labyrinthodon,  and  many  other  allied  forms,  from  the 
  Carboniferous,  Permian,  and  Triassic  formations.  By  recent 
  writers  they  are  divided  into  two  or  more  orders  See 
  {Stegocephala}. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Stegocephala  \Steg`o*ceph"a*la\,  n.  pl  [NL.,  fr  Gr  ?  roof  +  ? 
  head.]  (Paleon.) 
  An  extinct  order  of  amphibians  found  fossil  in  the  Mesozoic 
  rocks;  called  also  {Stegocephali},  and  {Labyrinthodonta}. 
 
  Note:  Their  teeth,  in  transverse  sections,  usually  show  a 
  labyrinthiform  arrangement  of  the  cement  and  dentine. 
  The  under  side  of  the  body  was  covered  with  bony 
  plates.  Some  of  the  Stegocephala  were  of  very  large 
  size,  and  the  form  of  the  body  varied  from  short,  stout 
  forms  to  others  that  were  as  slender  as  serpents. 
 
  From  WordNet  r  1.6  [wn]: 
 
  Labyrinthodonta 
  n  :  extinct  amphibians  typically  resembling  heavy-bodied 
  salamanders  or  crocodiles  and  having  a  solid  flattened 
  skull  and  conical  teeth;  Devonian  through  Triassic  [syn: 
  {Labyrinthodontia},  {superorder  Labyrinthodontia},  {Labyrinthodonta}, 
  {superorder  Labyrinthodonta}] 




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