page_title: List of the Mesozoic life of Montana
section_title: B
hierarchical_section_title: List of the Mesozoic life of Montana / B
caption_attribution_description: From the permanent collection of The Judith River Foundation, Leonardo, a fully articulated and partially mummified skeleton of a subadult brachylophosaur, is currently on loan to The Children’s Museum of Indianapolis. The fossil is 77 million years old and was discovered in Montana in 2000.
context_page_description: This list of the Mesozoic life of Montana contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Montana and are between 252.17 and 66 million years of age.
context_section_description: †Baculatisporites
   †Baculites
  †Baculites asper
  †Baculites codyensis
  †Baculites compressus
  †Baculites mariasensis
  †Baena
  †Baena callosa – type locality for species
  †Baioconodon
  †Baioconodon nordicus – or unidentified comparable form
  †Bakevellia
   †Bambiraptor – type locality for genus
  †Bambiraptor feinbergi – type locality for species
  Barbourula – or unidentified comparable form
  †Basilemys
  †Basilemys sinuosa – type locality for species
  †Batodon
  †Batodon tenuis
  †Belfria – type locality for genus
  †Belfria microphylla – type locality for species
   †Belonostomus
  †Belonostomus longirostris
  †Bernissartia
  †Biretisporites
  †Biretisporites deltoideus
  †Borealosuchus
  †Borealosuchus sternbergii
  †Boremys
  †Boremys pulchra
  †Borissiakoceras
  †Borissiakoceras orbiculatum
  Brachaelurus
  †Brachaelurus estesi
  †Brachyceratops – type locality for genus
  †Brachyceratops montanensis – type locality for species
  †Brachychampsa – type locality for genus
  †Brachychampsa montana – type locality for species
  †Brachychampsa montanus
   †Brachylophosaurus
  †Brachylophosaurus canadensis – type locality for species
  †Buccinammonites – type locality for genus
  †Buccinammonites minimus – type locality for species
caption: Fossilized natural mummy of the Late Cretaceous duck-billed dinosaur Brachylophosaurus
exif: {"Image ImageWidth": "4896", "Image ImageLength": "3264", "Image BitsPerSample": "[8, 8, 8]", "Image PhotometricInterpretation": "2", "Image Make": "Canon", "Image Model": "Canon EOS-1D Mark IV", "Image Orientation": "Horizontal (normal)", "Image SamplesPerPixel": "3", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS6 (Macintosh)", "Image DateTime": "2013:10:31 16:38:19", "Image ExifOffset": "284", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "842", "Thumbnail JPEGInterchangeFormatLength": "8115", "EXIF ExposureTime": "1/200", "EXIF FNumber": "22", "EXIF ExposureProgram": "Manual", "EXIF ISOSpeedRatings": "400", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2013:10:11 11:39:29", "EXIF DateTimeDigitized": "2013:10:11 11:39:29", "EXIF ShutterSpeedValue": "477741/62500", "EXIF ApertureValue": "8918863/1000000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "3", "EXIF SubjectDistance": "4294967295", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "16", "EXIF SubSecTime": "00", "EXIF SubSecTimeOriginal": "00", "EXIF SubSecTimeDigitized": "00", "EXIF ColorSpace": "Uncalibrated", "EXIF ExifImageWidth": "4896", "EXIF ExifImageLength": "3264", "EXIF FocalPlaneXResolution": "163200/43", "EXIF FocalPlaneYResolution": "816000/209", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Manual", "EXIF SceneCaptureType": "Standard"}