This page exists so that nobody has to take the rest of the article on trust. Every source it rests on is listed here with what it actually says, how it was obtained, and which way it cuts.
The article's working notes, with verbatim quotations, access routes and page anchors for every entry, are in research/formation-and-deposits.md, research/inclusions.md and research/yec-literature-and-flood-placement.md. This page is the index to them.
How to read an entry
Direction is judged relative to the young-earth claim that the world's amber deposits were produced and buried during the one-year Flood or its immediate aftermath: supports, undercuts, mixed or background, by what the source shows. Several mainstream sources are tagged mixed because they concede the creationist point that amber chemistry carries no clock. Camp, Type and Access are as in the sibling literature pages; three books were read through archive.org's search-inside route on print-disabled items and are not stored.
Rows not cited in the article were read and considered; where a row's source is not footnoted in index.md, it was judged background or duplicative and not used, and it is listed here so that the omission is visible.
Resin chemistry, maturation and the copal-amber line
| Source | Type | Camp | Access | Direction | What it says |
|---|---|---|---|---|---|
| Anderson, Winans & Botto 1992, Org. Geochem. 18:829 | measurement | mainstream | Zenodo PDF | mixed (concedes no clock) | Maturity "reflects both age and thermal history"; "inappropriate" to describe change as a function of age. |
| Langenheim 2003, Plant Resins | monograph | mainstream | archive.org print-disabled search; leaf − 4 | mixed (concedes no clock) | Millions-of-years claim "unsupported by data"; Palmnicken 204,120 kg (1875), 544,320 kg (1895); resin yields. |
| Vávra 2009, Ann. Naturhist. Mus. Wien 111A:445 | review | mainstream | open PDF | mixed | Age-based copal/amber definition "problematical"; exomethylene loss is the maturation marker; rumanite is heated succinite. |
| Poinar 1992, Life in Amber | monograph | mainstream | archive.org print-disabled search; leaf − 20 | mixed | "3 to 4 million years" asserted; kauri "thousands, not millions"; the thousand-fold tonnage error on p. 2. |
| Solórzano Kraemer et al. 2020, Sci. Rep. 10:19904 | review + ¹⁴C | mainstream | CC-BY | mixed | Copal defined 2.58 Ma to 1760 AD; "no evidence" molecular retention separates copal from amber; youngest amber ~12 Ma; dated copals 1960 AD to >36,000 BP. |
| Penney et al. 2013, PLoS ONE 8:e73150 | measurement | mainstream | CC-BY | undercuts (both sides) | Post-bomb and 10,612 ± 62 yr copal; no DNA in either. |
| Rust et al. 2010, PNAS 107:18360 | measurement | mainstream | open access (PMC) | mixed | 50–52 Ma Cambay amber "soft and often tacky", fully soluble; amber sorted into seams in lignite by brackish water. |
| Seyfullah et al. 2018, Biol. Rev. 93:1684 | review | mainstream | CC-BY | mixed (concedes tonnage) | Kauri swamps 20,000–100,000 yr, >450,000 t; Table 1 of deposits with amber in coal; Weitschat & Wichard's "10 million years" not necessary. |
| García-Méijome et al. 2023, Forests 14:128 | measurement | mainstream | CC-BY | background | Tapped pine 3.2–3.6 kg/tree/yr. |
| Own calculation (resin flux) | model | — | — | supports (tonnage) | Baltic mass from 3 to 6,400 years of forest, or standing stock. |
The deposits and their dating
| Source | Type | Camp | Access | Direction | What it says |
|---|---|---|---|---|---|
| Wolfe et al. 2009, Proc. R. Soc. B 276:3403 | measurement (FTIR) | mainstream | open access (PMC) | undercuts | Amber "never found in its original stratigraphic position"; authigenic glauconite in anoxic marine sediment; Sciadopitys source; 44–47 Ma K-Ar (now disputed). |
| Kasiński et al. 2020, Geol. Q. 64:29 | measurement (borehole) | mainstream | Incapsula, via browser fetch | undercuts | Strongly bioturbated glauconite sands; no index microfauna; two disagreeing K-Ar sets; alongshore redeposition. |
| Ross, Bojarski & Szwedo 2026, Earth Env. Sci. Trans. R. Soc. Edinb. | review (dinocysts) | mainstream | open access | undercuts; corrects mainstream | Glauconite K-Ar "unreliable"; Upper Blue Earth 36–35 Ma; Quaternary and Holocene reworking. |
| Chang, Li & Zheng 2023, Minerals 13:948 | review | mainstream | CC-BY | background | Baltic 35–47 Ma, no datable rock nearby; cites Shi 2012 for the Burmese U-Pb date but does not print it (Yu 2019 prints 98.8 ± 0.6 Ma). |
| Shi et al. 2012, Cret. Res. 37:155 | measurement (U-Pb) | mainstream | abstract only | undercuts | Magmatic zircons from volcanic clasts in the amber-bearing bed: 98.79 ± 0.62 Ma "as a maximum limit for the burmite." |
| Iturralde-Vinent 2001, Caribb. J. Sci. 37:141 | review + data | mainstream | Wayback capture via browser | background | The 15–20 Ma Dominican age is the Miogypsina-Soritiidae zone on Berggren 1995; "several millions of years, copal is naturally cooked" asserted. |
| Zheng et al. 2021, Crystals 11:1223; Saitta & Kaye 2025, Sci. Rep. 15:7627 | measurement | mainstream | CC-BY | mixed (concedes heat) | Days of heating make copal spectra amber-like but the exocyclic bands "did not disappear completely"; pine resin in bentonite at 130–140 °C and 160–250 bar hardens in a day. |
| Knebel et al. 2008, Tree Physiol. 28:847 | measurement | mainstream | USFS PDF | background | Constitutive resin flow 0.20–3.14 g/day per 8-mm wound; the nearest thing to a natural rate. |
| Grimaldi, Engel & Nascimbene 2002, Am. Mus. Novit. 3361 | review + field history | mainstream | open (archive.org) | mixed | Burmese amber reworked into Eocene-fossil clays with lignite; Cretaceous-only arthropods. |
| Yu et al. 2019, PNAS 116:11345 | measurement | mainstream | CC-BY (PMC) | undercuts | Ammonite dead, abraded, sand-filled; beach forest preferred; tsunami rejected with a reason. |
| Smith & Ross 2018, Earth Env. Sci. Trans. R. Soc. Edinb. 107:239 | measurement | mainstream | extended abstract only (repository file destroyed in migration; all other routes failed) | mixed | Small pholadids trapped alive in soft resin within 1–2 weeks; larger crypts bored into hardened amber, sand and calcite fills. |
| Henwood 1992, Palaios 7:203 | measurement | mainstream | JSTOR full PDF (one read spent) | mixed | Wax-sealed flies decayed fastest; "anoxia is shown to be ineffective"; dehydration in the first hours matches the fossil; constrains onset speed, not deposit age. |
| Stach et al. 2021, Sci. Rep. 11:16997 | measurement | mainstream | CC-BY | mixed | Dominican amber in lignite within lagoonal clays; coal Rro 0.39%; age disputed 15 Ma to Plio-Pleistocene. |
| Poinar 2010, Ann. Soc. Entomol. Fr. 46:23 | review | mainstream | publisher free PDF | mixed | Dominican age estimates 15–45 Ma; the 1985 NMR ages were calibrated to a 1980 foraminiferal date. |
| Iturralde-Vinent & MacPhee 1996, Science 273:1850 | measurement | mainstream | not obtained; relayed | background | The 15–20 Ma Dominican age. |
Inclusions: tissue, DNA, marine organisms, stasis, gases
| Source | Type | Camp | Access | Direction | What it says |
|---|---|---|---|---|---|
| Grimaldi et al. 1994, Am. Mus. Novit. 3097 | measurement (SEM/TEM) | mainstream | AMNH open PDF | mixed | Mitochondria and tracheoles preserved; sarcomeres are salt replicas; hollow Baltic casts; 1994 DNA prediction. |
| McCoy et al. 2019, Sci. Rep. 9:6420 | measurement | mainstream | CC-BY | undercuts | No amino acids in 7 of 9 amber feathers; trace, racemised residues in 2. |
| Grimaldi & Engel 2005, Evolution of the Insects, ch. 2 | textbook | mainstream | archive.org print-disabled search; leaf − 20 | undercuts DNA; background for snapshots | Retracts the DNA prediction; no chitin or protein in bee cuticle; behavioural scenes and successive flows. |
| Cano et al. 1993, Nature 363:536 | measurement | mainstream | abstract only | supports (void) | The weevil DNA claim; later re-identified as contaminant. |
| Austin et al. 1997, Proc. R. Soc. B 264:467 | measurement | mainstream | open (PMC) | undercuts | Fifteen specimens, five methods, no authentic ancient DNA. |
| Willerslev & Cooper 2005, Proc. R. Soc. B 272:3; Hebsgaard et al. 2005 | review | mainstream | open; abstract | undercuts | Amber and halite bacteria never replicated; sequences modern-identical. |
| Girard et al. 2008, PNAS 105:17426 | measurement | mainstream | open (PMC) | undercuts | Shore diatoms on dried debris in successive flows; mangrove bugs and sharks. |
| Xing et al. 2018, Sci. Rep. 8:1365 | measurement | mainstream | CC-BY | undercuts | Marine ostracod valve under a drying line; amber in laminated coals of a bay or lagoon. |
| Schmidt & Dilcher 2007, PNAS 104:16581 | measurement (modern) | mainstream | open (PMC) | background | Living swamp trees trap freshwater organisms in resin; resin barely solidifies under water. |
| Labandeira & Sepkoski 1993, Science 261:310 | measurement | mainstream | Smithsonian repository via browser | mixed | Cretaceous assemblages "almost exclusively of living families"; <10% of Triassic families survive. |
| Ross 2024, Mesozoic 1:21 | checklist | mainstream | open PDF | undercuts stasis below family | 2,805 species, 726 families; five extinct order-level groups; own dagger count 155 extinct vs 332 extant insect families. |
| Dunlop et al. 2011, Naturwissenschaften 98:519 | measurement (CT) | mainstream | abstract only | undercuts ICR/AiG use | Ocypete crassipes Koch & Berendt 1854 is a fossil species. |
| Xing et al. 2016, Curr. Biol. 26:3352 | measurement | mainstream | author manuscript on disk | mixed | Feathered tail: carbonised tissue, iron from haemoglobin, no cellular detail. |
| Xing et al. 2020, Nature 579:245 and retraction 584:652; Bolet et al. 2021 | measurement | mainstream | abstracts | cautionary | Oculudentavis, "smallest dinosaur", retracted; a lizard. |
| Berner & Landis 1988, Science 239:1406 | measurement | mainstream | abstract only | supports (void) | ">30 percent O₂" after "discounting" diffusion; "preliminary." |
| Cerling 1989, Nature 339:695 | measurement | mainstream | first paragraph from publisher page | undercuts | Less O₂ than modern equilibration; O₂ consumed with each crush. |
| Landis & Berner 2018, Am. J. Sci. 318:590 | measurement + reply | mainstream | open PDF | undercuts, from the claim's own authors | "May ... at least in part"; O₂ reacts in hours; heated amber absorbs O₂ to >50%; GEOCARBSULF puts Cretaceous O₂ below modern; argon closed-system argument survives untested. |
| Hopfenberg, Witchey & Poinar 1988; Beck 1988; Chave & Smith 1988; Horibe & Craig 1988; Landis & Berner reply 1988 (Science 241:717–724) | technical comments + reply | mainstream | free on science.org via cdp-fetch.py |
undercuts | Propane D 5–8 × 10⁻¹³ cm²/s; O₂ consumed with a 67-day mean life at room temperature, D ~10⁻¹⁰ cm²/s, "440 years" for a 10-cm ball; succinite permeable; the reply concedes diffusion cannot be measured unambiguously by anyone. |
The creationist literature
| Source | Type | Camp | Access | Direction | What it says |
|---|---|---|---|---|---|
| Oard 2024, CMI "The Flood origin of amber" | model | creationist | open web | supports; facts wrong | Floating log mats; Baltic "Swedish peninsula", "half a million kilograms", Agathis source; "all known amber-bearing beds" marine. |
| Thomas 2010, ICR "Fantastic Australian amber" | popular | creationist | open web | supports (rhetorically) | Rapid hardening read as recent deposit; Dominican bacteria placed in California. |
| Robinson 2021, CMI "Ammonite in amber" | popular | creationist | open web | undercuts (concedes the facts) | Shell "lifeless", sand-filled; proposes resin in Flood water. |
| Clarey 2019, ICR "Marine ammonite in tree resin"; Clarey 2021 (crab) | popular | creationist | open web | supports; does not engage Yu's reason | Tsunamis and storms; the beach "least probable." |
| Thomas 2011, ICR (huntsman); AiG 2011 "Tropical Huntsman" | popular | creationist | open web | supports; wrong on the species | "Virtually identical to the modern species Eusparassus crassipes." |
| Thomas 2008, ICR (gecko) | popular | creationist | open web | supports (family-level stasis) | Fully formed toe pads; genus extinct. |
| Sherwin 2006, ICR "Amber: a window to the recent past" | popular | creationist | open web | supports (void) | Asserts amber DNA nine years after the replication failure; still live. |
| Garner 2002, Biblical Creation Society | essay | creationist | open web | background | Hedges on contamination; asks for replication; not updated. |
| CMI "Arguments we think creationists should NOT use" | list | creationist | open web | background | Does not mention amber or oxygen. |
| Genesis Park; creationism.org; Genesis Apologetics | popular | creationist (second tier) | open web | supports (void) | The 35% oxygen figure with none of the rebuttals. |
| Oard 2010, JoC 24(1):9 "Marine fossils in amber support the Flood log-mat model" | argument | creationist | open PDF | supports; premise fails | The only creationist derivation of a boundary from amber: amber needs burial heat and pressure, so post-Flood amber is "unlikely or rare"; concedes resin "needs to be exposed to air in order to solidify." |
| Oard 2010, JoC 24(2):16 (Carboniferous amber) | note | creationist | open PDF | background | Amber in Illinois coal reported for its chemistry; not treated as a test of transported coal. |
| Catchpoole 2009, Creation 31(2):20 "Amber needed water" | popular | creationist | open web | supports; concedes water delays hardening | Log-mat model; "Water delays the process of solidification"; amber "floats in saltwater." |
| Robinson 2020, Creation 42(4):24 | popular | creationist | open web | supports (explicit Flood placement of Baltic and Campanian amber) | Log-mat model; "buried, where it begins to harden and is called copal" (wrong); Oculudentavis as a bird skull after the retraction. |
| Catchpoole 2016, Creation 38(2):16; Lacey 2019 (AiG); Mitchell & Snelling 2016 (AiG) | popular | creationist | open web | background (explicit placements) | Dominican Miocene, Lebanese Barremian and Burmese Cenomanian amber each placed in the Flood. |
| Thomas 2014, ICR "Amber fossils redefine 'Age of Reptiles'"; Thomas 2010, Acts & Facts 39(9):17 | popular | creationist | open web | undercuts Oard 2010 | Amber hardens in "weeks to decades"; "Nodules that are chemically the same as 'ancient' ambers form today." |
| Sherwin 2020, ICR "Amber insect fossils still glow" | popular | creationist | open web | background (third origin model) | Amber formed pre-Flood and "survived" the Flood. |
| Miller, Michaels & Miller 2006, CRSQ 43(2):84 | measurement | creationist | CRSQ eprint PDF | undercuts | Radiocarbon on Baltic and Wyoming amber: >46,450 to >51,900 yr, same as coal blanks; Gdańsk "young amber" 620 ± 30. |
| Clarey 2025, ICR "Flood tsunamis transported trees and amber" | popular | creationist | open web | mixed | Quotes Kubota 2025 accurately; assigns the beds to "close to day 150"; drops the container. |
| Kubota et al. 2025, Sci. Rep. 15:14298 | measurement | mainstream | CC-BY | mixed | Thirty amber beds among >400 event beds; two U-Pb tuffs 2 Myr apart; radiolarian laminites; repeated tsunamis invoked. |
| Whitmore & Wise 2008, ICC 6:449; Whitmore & Garner 2008, ICC 6:425 | papers | creationist | on disk | background (the K-Pg budget) | All Tertiary sediment between the Flood and Babel: 101–340 or 401–870 years; neither paper mentions amber. |
| Coppen & Hone 1995, FAO Non-Wood Forest Products 2 | industry measurement | mainstream | open PDF | background | Tapped pines yield 3–4 kg/tree/yr; 330,000 trees per 1,000 t/yr. |
| Snelling 2009, Earth's Catastrophic Past vol. 2, pp. 532–533; Clarey & Werner 2023 | books/papers | creationist | on disk | background (boundary placement) | Snelling's one amber passage reports Austin 1997's DNA failure and quotes Heribert-Nilsson on Baltic amber as allochthonous; where each model ends the Flood. |
Considered and not used
- (Verified 2026-09-02: the p. 84 passage was reconstructed from eight overlapping Google Books snippets — "The estimated amber reserves in this area amount to 640,000 metric tons." The chapter body, and the "millions of years" sentence Seyfullah attributes to it, remain unverified.)
- Peris et al. 2020, PLoS ONE 15:e0239521, which recovered DNA from beetles in 2- and 6-year-old resin. Not read; its abstract limits authenticated resin DNA to under a million years, which does not change the article.
- Luque et al. 2021 (the crab in Burmese amber that ICR called marine). Not read; the article does not repeat either side's characterisation of it.
- Arnold & Poinar 2008 (the gecko foot). Not read; the article grants the toe-pad point and notes the genus is extinct.
- Girard et al. 2009, Geology 37:83 (the diatom follow-up Oard cites). Not read; Girard 2008 carries the argument.
- Montoro et al. 2018 (heating pure trans-communic acid; abstract only), Langenheim 1967 (J. Arnold Arboretum 48:203, Hymenaea copal history), Cessna 2013 (CMI, Triassic Italian amber), Thomas 2013 (ICR, the Chiapas lizard; no placement given) and AiG 2010 (News to Note, a lizard in amber) were read for the dossiers and judged duplicative of sources already cited; none is footnoted.
Sought and not obtained
- Weitschat & Wichard 2002, and the 2010 chapter body (the p. 84 passage is now reconstructed from eight overlapping Google Books snippets); Shi et al. 2012 body; Smith & Ross 2018 body (the old repository file was destroyed in the DSpace migration — the live item carries zero bitstreams, confirmed through its REST API after the WAF CAPTCHA; CUP paywalled; CORE blobs deleted; emailing the authors is the remaining route); Iturralde-Vinent & MacPhee 1996 (the 2001 paper was read instead); Standke 2008; Kasiński & Kramarska 2008; Sadowski et al. 2017.
- Lambert & Poinar 2002; Lambert, Frye & Poinar 1985; Ragazzi et al. 2003; Clifford & Hatcher 1995; Anderson & Crelling 1995. (Copal-heating experiments were found: Zheng 2021, Saitta & Kaye 2025; Nissenbaum & Yakir 1995 is an isotope chapter, not a heating experiment.)
- (Closed 2026-09-02: Henwood 1992 read in full through JSTOR — the month's first read of ten, recorded — and quoted in the soft-tissue section.)
- Berner & Landis 1988 full text (the five 1988 comments and reply were obtained).
- Hebsgaard et al. 2005 full text; Graur & Pupko 2001; Gutiérrez & Marín 1998.
- Serrano-Sánchez et al. 2015 (Chiapas); McKellar et al. 2011 full text; Dove & Straker 2012.
- A measured natural (unwounded) resin exudation rate per tree per year; none exists in any source read (Knebel 2008 gives a per-wound constitutive flow).