Catalog / order

Monotremata

The 110–0 Ma Monotremata route is a total-group navigation span anchored by the Griman Creek Steropodon jaw and living monotremes; dental affinity does not make Steropodon a crown member, direct ancestor or global monotreme FAD. This navigation entry is not a phylogeny or a complete taxon dossier.

Represented range110–Present Ma

Content packageother-mammals

PBDBtxn:39737

Evidence boundary

Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.

Claim ledger

fossil-range · medium

claim:taxon:monotremata:root-range

Known limits

A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.

References

First Mesozoic mammal from Australia—an Early Cretaceous monotremeArcher, M.; Flannery, T.F.; Ritchie, A.; Molnar, R.E. · 1985 · DOI 10.1038/318363a0
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

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