{
  "reviewedOn": "2026-11-05",
  "scope": "Attributed proposals for the ancestry or taxonomic affinities of Sasquatch and related reported forms. This catalog records proposals, not verified biological relationships.",
  "proposals": [
    {
      "id": "gigantopithecus",
      "title": "A surviving Gigantopithecus relative",
      "proponents": [
        "Grover S. Krantz",
        "Charles A. Reed",
        "BFRO"
      ],
      "sourceDate": "1984 for the Krantz and Reed essays; BFRO page publication date not established",
      "proposedRelatives": [
        "Gigantopithecus blacki",
        "an earlier gigantopithecine or related Asian ape"
      ],
      "reasoning": "Krantz compared reported body size, teeth and possible upright posture with Gigantopithecus. Reed preferred an earlier Asian population and earlier Beringian dispersal on climatic grounds. BFRO also allows a related giant Asian ape branch absent from the known fossil record.",
      "limits": "Krantz explicitly made the physical fit conditional on bipedality. Reed stressed uncertainty and the scarcity of skeletal material. Proposed migration and survival do not themselves document a crossing or descendant.",
      "sources": [
        {
          "author": "Grover S. Krantz",
          "date": "1984",
          "title": "The Origin of the Sasquatch",
          "url": "https://www.bigfoot411.com/uploads/2/6/9/7/26977415/bf411-taxonomy-1984-green_john-origin-of-sasquatch.pdf",
          "sourceType": "Author essay, mirrored PDF",
          "provenanceNote": "Bigfoot411 labels the link John Green, but the PDF title and final copyright credit identify Grover S. Krantz, 1984."
        },
        {
          "author": "Charles Reed",
          "date": "1984",
          "title": "Bigfoot: The Ancestry of Sasquatch",
          "url": "https://www.bigfoot411.com/uploads/2/6/9/7/26977415/bf411-taxonomy-1984-reed_chas-ancestry-of-sasquatch.pdf",
          "sourceType": "Author essay, mirrored PDF"
        },
        {
          "author": "BFRO",
          "date": null,
          "title": "The Bigfoot-Giganto Theory",
          "url": "https://www.bfro.net/REF/THEORIES/MJM/whatrtha.asp",
          "sourceType": "Organization's hypothesis article"
        }
      ]
    },
    {
      "id": "paranthropus",
      "title": "A robust australopithecine relative",
      "proponents": [
        "Gordon Strasenburgh",
        "Jeff Meldrum (candidate, not exclusive identification)"
      ],
      "sourceDate": "1975 and 1979; Meldrum interview 2024-01-29",
      "proposedRelatives": [
        "Paranthropus",
        "Paranthropus boisei"
      ],
      "reasoning": "Strasenburgh compared reported cranial and facial traits, vegetation consumption, and behavior with robust australopithecines. Meldrum compared the jaw and chewing anatomy and Paranthropus boisei skull shape with the Patterson-Gimlin subject.",
      "limits": "Meldrum explicitly noted the size and geography gap: known Paranthropus was small and African, requiring additional range expansion and size change. His interview presents both Paranthropus and Gigantopithecus as candidates.",
      "sources": [
        {
          "author": "Gordon Strasenburgh",
          "date": "1975",
          "title": "On Paranthropus and Relic Hominoids",
          "url": "https://cryptozoologicalreferencelibrary.wordpress.com/wp-content/uploads/2019/10/strasenburgh-1975a.pdf",
          "sourceType": "Original journal correspondence, mirrored scan",
          "bibliography": "Current Anthropology 16(3):486–487"
        },
        {
          "author": "Gordon Strasenburgh",
          "date": "1979",
          "title": "More on Neanderthal vs. Paranthropus",
          "url": "https://cryptozoologicalreferencelibrary.wordpress.com/wp-content/uploads/2019/10/strasenburgh-1979.pdf",
          "sourceType": "Original journal correspondence, mirrored scan",
          "bibliography": "Current Anthropology 20(3):624–627"
        },
        {
          "author": "Jeff Meldrum, interviewed by Christophe Kilian",
          "date": "2024-01-29",
          "title": "Interview with Jeff Meldrum",
          "url": "https://strangereality.blog/2024/01/29/interview-with-jeff-meldrum/",
          "sourceType": "Direct interview"
        }
      ]
    },
    {
      "id": "archaic-homo",
      "title": "Surviving archaic Homo populations",
      "proponents": [
        "Dale A. Drinnon, endorsing Tyler Stone's distinction"
      ],
      "sourceDate": "2012-03-25",
      "proposedRelatives": [
        "Homo heidelbergensis",
        "Homo neanderthalensis"
      ],
      "reasoning": "Drinnon compared a Thomas Finley Eastern Bigfoot portrait with a Heidelbergensis reconstruction and proposed larger Heidelbergensis-like and smaller Neanderthal-like forms.",
      "limits": "He explicitly limited this comparison to Eastern Bigfoot, not West Coast Sasquatch. It is an interpretation of reported appearance and artwork; a portrait resemblance is not a dated fossil or genetic identification.",
      "sources": [
        {
          "author": "Dale A. Drinnon",
          "date": "2012-03-25",
          "title": "Homo Sapiens Heidelbergensis: Big Daddy Is Still Around",
          "url": "https://frontiersofzoology.blogspot.com/2012/03/homo-sapiens-heidelbergensis-big-daddy.html",
          "sourceType": "Author's original blog essay"
        }
      ]
    },
    {
      "id": "dryopithecus",
      "title": "Dryopithecus-related southern apes",
      "proponents": [
        "Loren Coleman"
      ],
      "sourceDate": "1997 retrospective describing lectures from 1973 and publications in 1983–1984",
      "proposedRelatives": [
        "Dryopithecus"
      ],
      "reasoning": "Coleman's own signed account states that he proposed Dryopithecus for chimpanzee-like southern United States apes or skunk apes.",
      "limits": "Coleman explicitly distinguishes those reports from Bigfoot. This is a regional comparative proposal, not support for assigning all Sasquatch reports to Dryopithecus; the short page provides little anatomical argument.",
      "sources": [
        {
          "author": "Loren Coleman",
          "date": "1997",
          "title": "Scientific names discussion",
          "url": "https://www.bfro.net/REF/scinafaq.htm",
          "sourceType": "Signed author's account hosted by BFRO"
        }
      ]
    },
    {
      "id": "human-hybrid",
      "title": "Modern-human ancestry plus an unidentified primate",
      "proponents": [
        "Melba S. Ketchum and coauthors"
      ],
      "sourceDate": "Paper circulated in 2013; examined PDF bears copyright 2012",
      "proposedRelatives": [
        "Homo sapiens",
        "unidentified primate progenitor"
      ],
      "reasoning": "The authors interpreted human mitochondrial sequences alongside claimed unusual nuclear sequences in submitted material as evidence of a novel hominin with mixed ancestry.",
      "limits": "Record this as the authors' sample-based claim. It does not identify a named fossil parent. This source has not resolved the user's separate 99.5%-human hair recollection, and it is not an independently verified Sasquatch genome.",
      "sources": [
        {
          "author": "Melba S. Ketchum et al.",
          "date": "2012 copyright; 2013 release",
          "title": "Novel North American Hominins, Next Generation Sequencing of Three Whole Genomes and Associated Studies",
          "url": "https://wendystjohn.summerlark.net/wp-content/uploads/2021/10/novel-north-american-hominins-final-pdf-download.pdf",
          "sourceType": "Authors' original paper, mirrored PDF"
        }
      ]
    },
    {
      "id": "schlosser-multiple-lineages",
      "title": "Multiple branches, hybrids and novel adaptations",
      "proponents": [
        "David Schlosser"
      ],
      "sourceDate": "2017 chart, version 1.1",
      "proposedRelatives": [
        "Several ape lineages",
        "Paranthropus",
        "Homo",
        "invented hybrid categories"
      ],
      "reasoning": "Schlosser works backward from different reported appearances to imagine several ancestral branches, novel trait combinations and hybrid paths. The chart includes ape-like and archaic-human-like categories.",
      "limits": "The chart and source page explicitly call the lineages invented. They have no calibrated evolutionary dates. Named hybrid boxes such as Rama-Pan and Homo-thropus are the author's constructs. One chart is one interpretive source, not separate encounter evidence for each pictured type.",
      "sources": [
        {
          "author": "David Schlosser",
          "date": "2017",
          "title": "Modern Bigfoot Types via Uncatalogued Hybrids and Novel Adaptations 1.1",
          "url": "https://www.bigfoot411.com/bigfoot-types.html",
          "sourceType": "Author's thought-experiment chart"
        }
      ]
    }
  ],
  "implementationNotes": [
    "Separate fossil ranges from proposal publication dates and reported encounter dates.",
    "Do not assign a dated Sasquatch origin from these sources; the proposed split remains unknown.",
    "Keep all proposed Sasquatch connections downstream of ape ancestry, consistent with the user's biological narrative.",
    "Historical taxonomy, fossil ranges and assumptions in old essays need current verification before reuse as biological facts.",
    "Keep regional labels and individual proponents' distinctions: they do not all claim every report describes the same species.",
    "Dashed links can identify specific author-proposed connections; they should not imply documented parent-child descent."
  ]
}