Triadobatrachus massinoti is known from the unique holotype MNHN.F.MAE.126 and is treated as a stem salientian, not crown Anura.
claim:taxon:triadobatrachus:taxonomyTriadobatrachus massinoti
An Early Triassic stem salientian known from one split-nodule holotype re-examined with micro-CT.
Represented range251.902–247 Ma
Content packageamphibia
PBDBtxn:156396
Evidence boundary
Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.
Claim ledger
MNHN.F.MAE.126 comes from Sakamena-equivalent beds near Betsiaka, Madagascar; historical provenance limits finer geographic inference.
claim:taxon:triadobatrachus:biogeographyThe skeleton does not directly establish diet or habitat preference, and its retained tail and long trunk do not support specialized frog-like jumping.
claim:taxon:triadobatrachus:ecologyMicro-CT of MNHN.F.MAE.126 reveals fifteen presacrals, retained caudal vertebrae and possible mentomeckelian elements in a stem-salientian body.
claim:taxon:triadobatrachus:morphologyThe displayed 251.902–247 Ma interval is a broad Early Triassic envelope for MNHN.F.MAE.126 and is not a crown-frog FAD.
claim:taxon:triadobatrachus:fossil-rangeKnown limits
- A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.
References
- Triadobatrachus massinoti, the earliest known lissamphibian (Vertebrata: Tetrapoda) re-examined by μCT scan, and the evolution of trunk length in batrachiansAscarrunz, E.; Rage, J.-C.; Legreneur, P.; Laurin, M. · 2016 · DOI 10.1163/18759866-08502004
- 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