• Thumbnail for Bear Gulch Limestone
    The Bear Gulch Limestone is a limestone-rich geological lens in central Montana, renowned for the quality of its late Mississippian-aged fossils. It is...
    71 KB (5,917 words) - 05:21, 15 March 2024
  • Thumbnail for Falcatus
    falcatid chondrichthyan which lived during the early Carboniferous Period in Bear Gulch bay in what is now Montana. This fish was quite small, only getting to...
    14 KB (1,371 words) - 00:46, 8 March 2024
  • Thumbnail for Echinochimaera
    extinct genus of chimaeriform fish, known from the Lower Carboniferous Bear Gulch Limestone in Montana, United States. It is one of the earliest Chimaeriformes...
    6 KB (459 words) - 21:27, 16 March 2024
  • Thumbnail for Allenypterus
    discovered in Bear Gulch Limestone, Montana, USA. Lund, Richard; Lund, Wendy (1984). "New genera and species of coelacanths from the Bear Gulch Limestone (Lower...
    2 KB (99 words) - 23:36, 15 April 2024
  • Thumbnail for Daidal
    acanthocercus, have been found in the Bear Gulch Limestone of Montana. A second species, D. pattoni, is known from the Lower Limestone Formation of Scotland, and...
    15 KB (1,675 words) - 02:06, 18 April 2024
  • Thumbnail for Stethacanthus
    Considering that most of the Stethacanthus specimens were recovered in the Bear Gulch Limestone in Montana, it is possible that this area was not only a breeding...
    21 KB (2,328 words) - 21:26, 1 February 2024
  • Thumbnail for Squatinactis
    extinct elasmobranch chondrichthyan known from the Carboniferous aged Bear Gulch Limestone in Montana. This fish was discovered in 1974 by Richard Lund. The...
    6 KB (467 words) - 01:00, 22 December 2023
  • Thumbnail for Belantsea
    Carboniferous, about 350 million years ago. Its fossils are found in the Bear Gulch Limestone lagerstätte. Its body was leaf-shaped, with muscular fins and a small...
    2 KB (151 words) - 00:54, 13 November 2023
  • Thumbnail for Phanerosteon
    second species, P. phonax was described from the Serpukhovian aged Bear Gulch Limestone lagerstätte in Montana, United States. Paleontology portal Fish portal...
    3 KB (192 words) - 20:27, 16 October 2023
  • Thumbnail for Delphyodontos
    prehistoric holocephalan fish from the middle Carboniferous-aged Bear Gulch Limestone Lagerstätte, during the Bashkirian Stage in Montana. The adult form...
    2 KB (185 words) - 23:35, 4 February 2024
  • Thumbnail for Typhloesus
    wellsi is an extinct species of enigmatic bilaterian animals from the Bear Gulch Limestone. It was once thought to be the first body fossil of a conodont, based...
    5 KB (532 words) - 09:37, 22 March 2024
  • Thumbnail for List of types of limestone
    fallback Bear Gulch Limestone – fossiliferous limestone layer in Montana, USAPages displaying wikidata descriptions as a fallback Columbus Limestone Cottonwood...
    7 KB (964 words) - 05:24, 8 May 2024
  • Thumbnail for Fossiliferous limestone
    Tithonian Wenlock Group White Limestone Formation Alquézar Aquitaine Basin Aymestry Limestone Barstow Formation Bear Gulch Limestone Bennett Island Bissett Formation...
    6 KB (634 words) - 06:51, 21 February 2024
  • Thumbnail for Stethacanthidae
    condition. Most Stethacanthids found come from the Bear Gulch Limestone of Montana. The Bear Gulch is a lagerstätte that is unique in preserving virtually...
    15 KB (1,781 words) - 18:24, 21 January 2024
  • Thumbnail for Harpagofututor
    the 1980s in Montana's Bear Gulch area by Adelphi University palaeontologist Richard Lund, who has been exploring the limestone formations of the region...
    3 KB (276 words) - 19:43, 3 January 2023
  • species of lamprey found, dating from the Carboniferous period, at the Bear Gulch Limestone site in the U.S. state of Montana. "Hardistiella montanensis". Fossilworks...
    3 KB (220 words) - 17:14, 12 February 2024
  • Thumbnail for Syllipsimopodi
    his climate change policies. The holotype fossil was found in the Bear Gulch Limestone deposit in the US state of Montana in 1988, and donated that year...
    6 KB (599 words) - 04:56, 24 December 2023
  • Thumbnail for Carboniferous
    elongated lower jaw. Allenypterus was a Coelacanth fish known from the Bear Gulch Limestone in Montana. Phanerosteon was a Bony fish belonging to the extinct...
    110 KB (11,562 words) - 12:52, 11 April 2024
  • Thumbnail for Crustacean
    "Palaeo- and archaeostomatopods (Hoplocarida: Crustacea) from the Bear Gulch Limestone, Mississippian (Namurian), of central Montana". Contributions to...
    57 KB (4,857 words) - 11:17, 13 May 2024
  • Thumbnail for Debeerius
    Debeerius is a genus of chondrichthyan from the Mississippian age Bear Gulch Limestone of Montana, United States. It is named after Gavin de Beer. One species...
    1 KB (95 words) - 18:33, 28 March 2023
  • Thumbnail for Guildayichthyidae
    Guildayichthyidae is a prehistoric family of marine fish from the Mississippian Bear Gulch Limestone of Montana. It is the only family in the order Guildayichthyiformes...
    2 KB (130 words) - 05:19, 31 October 2023
  • Thumbnail for Hoplocarida
    "Palaeo- and archaeostomatopods (Hoplocarida: Crustacea) from the Bear Gulch Limestone, Mississippian (Namurian), of central Montana". Contributions to...
    2 KB (74 words) - 09:03, 25 April 2023
  • rogaire. It is known from the Serpukhovian-aged lagerstätte of the Bear Gulch Limestone of Montana, United States. It is one of the genera included in the...
    1 KB (110 words) - 19:40, 15 January 2024
  • Thumbnail for Thrinacodus
    in the separate genus Thrinacoselache from the Serpukhovian-aged Bear Gulch Limestone, of what is now Montana, is known from full body impressions, showing...
    4 KB (278 words) - 21:26, 24 March 2024
  • Mississippian. It has been discovered at the well known Carboniferous-aged Bear Gulch Limestone (Montana, United States). It is known primarily from fossil teeth...
    2 KB (121 words) - 00:53, 13 November 2023
  • Thumbnail for Perimecturus
    Scotland. Fossils of a later species, P. rapax, have been found in the Bear Gulch Limestone of Montana and were first described by Frederick Schram. Unlike other...
    28 KB (3,331 words) - 22:55, 23 April 2024
  • Thumbnail for Jack Horner (paleontologist)
    dyslexia. However, he did complete a senior thesis on the fauna of the Bear Gulch Limestone, one of the most famous Mississippian lagerstätten (exceptionally...
    28 KB (2,499 words) - 09:25, 16 May 2024
  • Thumbnail for Caridosuctor
    contains a single species, C. populusum, with fossils known from the Bear Gulch Limestone in Montana. Rhabdodermatidae - Paleobiology Database "Coelacanthiformes"...
    2 KB (108 words) - 03:14, 11 May 2024
  • petalodontiform Siksika ottae. The species was described from the well known Bear Gulch Limestone in Montana, United States, dated to the Carboniferous period. This...
    2 KB (214 words) - 00:55, 13 November 2023
  • Thumbnail for Conodont
    conodont were those of Typhloesus, an enigmatic animal known from the Bear Gulch limestone in Montana. This possible identification was based on the presence...
    44 KB (4,086 words) - 23:37, 29 March 2024