﻿APPENDIX. 
  

  

  Art. 
  XXYI. 
  — 
  Notice 
  of 
  New 
  Vertebrate 
  Fossils 
  ; 
  by 
  

   O. 
  C. 
  Marsh. 
  

  

  Recent 
  researches 
  on 
  a 
  number 
  of 
  extinct 
  animals 
  have 
  

   made 
  it 
  evident 
  that 
  several 
  of 
  them 
  are 
  new 
  to 
  science, 
  and 
  

   that 
  others 
  possess 
  some 
  characters 
  of 
  interest 
  which 
  have 
  not 
  

   hitherto 
  been 
  observed. 
  In 
  the 
  present 
  paper, 
  some 
  of 
  the 
  

   results 
  of 
  this 
  investigation 
  are 
  placed 
  on 
  record, 
  and 
  others 
  

   will 
  be 
  given 
  in 
  a 
  later 
  communication. 
  

  

  CERATOPSIDiE. 
  

   Triceratops 
  elatus, 
  sp. 
  nov. 
  

  

  One 
  of 
  the 
  largest 
  members 
  of 
  the 
  Ceratopsidce, 
  representing 
  

   a 
  distinct 
  species, 
  is 
  at 
  present 
  known 
  from 
  the 
  skull 
  only, 
  

   which 
  was 
  secured 
  during 
  the 
  past 
  year. 
  Although 
  this 
  skull 
  

   is 
  about 
  six 
  feet 
  and 
  a 
  half 
  in 
  length, 
  it 
  belonged 
  to 
  an 
  animal 
  

   scarcely 
  adult, 
  as 
  indicated 
  by 
  some 
  of 
  the 
  cranial 
  sutures. 
  

   The 
  rostral 
  bone 
  is 
  not 
  coossified 
  with 
  the 
  premaxillaries 
  as 
  

   in 
  old 
  animals, 
  and 
  the 
  superior 
  branch 
  of 
  the 
  former 
  bone 
  

   has 
  its 
  extremity 
  free. 
  The 
  nasal 
  horn-core, 
  however, 
  is 
  

   firmly 
  coossified 
  with 
  the 
  nasals. 
  It 
  is 
  of 
  moderate 
  size, 
  with 
  

   an 
  obtuse 
  summit 
  directed 
  upwards. 
  The 
  main 
  horn-cores 
  were 
  

   quite 
  long, 
  with 
  their 
  extremities 
  pointed 
  and 
  directed 
  well 
  

   forward. 
  These 
  horn-cores 
  are 
  compressed 
  transversely, 
  the 
  

   section 
  being 
  oval 
  in 
  outline. 
  

  

  One 
  of 
  the 
  most 
  striking 
  features 
  of 
  the 
  skull 
  is 
  the 
  

   parietal 
  crest, 
  which 
  was 
  quite 
  elongate, 
  and 
  much 
  elevated, 
  

   more 
  so 
  than 
  in 
  any 
  of 
  the 
  species 
  hitherto 
  discovered, 
  and 
  this 
  

   has 
  suggested 
  the 
  specific 
  name. 
  

  

  The 
  length 
  of 
  this 
  skull 
  from 
  the 
  front 
  of 
  the 
  rostral 
  bone 
  

   to 
  the 
  back 
  of 
  the 
  parietal 
  crest 
  was 
  about 
  seventy-eight 
  inches, 
  

   and 
  the 
  greatest 
  transverse 
  expanse 
  of 
  the 
  posterior 
  crest 
  was 
  

   about 
  forty 
  inches. 
  The 
  summit 
  of 
  one 
  of 
  the 
  frontal 
  horn- 
  

   cores 
  was 
  about 
  twenty-eight 
  inches 
  above 
  the 
  orbit, 
  and 
  

   fifty-three 
  inches 
  from 
  the 
  base 
  of 
  the 
  quadrate. 
  

  

  This 
  interesting 
  specimen 
  was 
  found 
  in 
  the 
  Ceratops 
  beds 
  of 
  

   the 
  Laramie, 
  in 
  Wyoming, 
  by 
  Mr. 
  J. 
  B. 
  Hatcher 
  of 
  the 
  IT. 
  S. 
  

   Geological 
  Survey, 
  whose 
  previous 
  discoveries 
  are 
  well-known. 
  

  

  