Tethymyxine tapirostrum holotype BHI 6445 was recovered within crown Myxini in the published morphology analysis, while its exact branch position remains matrix-dependent.
claim:taxon:tethymyxine:taxonomyTethymyxine tapirostrum
A complete Cenomanian hagfish body fossil recovered within crown Myxini in a morphology-based phylogenetic analysis.
Represented range100.5–93.9 Ma
Content packageearly-fishes
PBDBtxn:384229
Evidence boundary
Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.
Claim ledger
BHI 6445 comes from the Cenomanian Hâdjoula Lagerstätte of Lebanon in the eastern Tethys; the locality does not establish a global crown-hagfish distribution.
claim:taxon:tethymyxine:biogeographyThe marine depositional context is documented, but the fossil does not directly establish diet, scavenging behaviour, depth preference or modern hagfish ecology.
claim:taxon:tethymyxine:ecologyBHI 6445 preserves a complete soft-bodied hagfish with character information from the feeding apparatus and body used in the published phylogenetic matrix.
claim:taxon:tethymyxine:morphologyThe displayed 100.5–93.9 Ma interval is the Cenomanian envelope for BHI 6445 and supplies a crown-Myxini fossil bound, not a global FAD.
claim:taxon:tethymyxine:fossil-rangeKnown limits
- A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.
References
- Hagfish from the Cretaceous Tethys Sea and a reconciliation of the morphological–molecular conflict in early vertebrate phylogenyMiyashita, T.; Coates, M.I.; Farrar, R.; Larson, P.; Manning, P.L.; Wogelius, R.A.; Edwards, N.P.; Anné, J.; Bergmann, U.; Palmer, A.R.; Currie, P.J. · 2019 · DOI 10.1073/pnas.1814794116
- Open Tree of Life web servicesOpenTreeOfLife Project
- The Paleobiology Database application programming interfacePeters, S.E.; McClennen, M. · 2016 · DOI 10.1017/pab.2015.39
- Denormalized occurrence and taxon tables of the Paleobiology DatabaseThe Paleobiology Database Community; Kocsis, Á.T. · 2026 · DOI 10.5281/zenodo.21620933