Gladbachus adentatus

A Givetian stem chondrichthyan known from one compressed specimen whose CT and histology reveal an anatomically incongruent character mosaic.

Represented range385–385 Ma

Content packagechondrichthyes

PBDBtxn:502070

Evidence boundary

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

Claim ledger

taxonomy · medium

Gladbachus adentatus is represented by the single compressed specimen UMZC 2000.32 and was recovered on the chondrichthyan stem rather than within the living crown.

claim:taxon:gladbachus:taxonomy

biogeography · medium

UMZC 2000.32 comes from the Upper Givetian Lower Plattenkalk at Unterthal, Bergisch Gladbach, Germany; this occurrence does not define a wider range.

claim:taxon:gladbachus:biogeography

ecology · medium

The slab records an aquatic fish body but does not directly preserve diet, prey capture, swimming performance or habitat preference.

claim:taxon:gladbachus:ecology

morphology · medium

CT and histology reveal neurocranium, jaws, branchial skeleton, pectoral girdle, cartilage, scales and teeth in UMZC 2000.32.

claim:taxon:gladbachus:morphology

fossil-range · medium

The displayed approximately 385 Ma point is the Upper Givetian occurrence of UMZC 2000.32 and not a global chondrichthyan FAD.

claim:taxon:gladbachus:fossil-range

Known limits

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

References

An early chondrichthyan and the evolutionary assembly of a shark body planCoates, M.I.; Finarelli, J.A.; Sansom, I.J.; Andreev, P.S.; Criswell, K.E.; Tietjen, K.; Rivers, M.L.; La Rivière, P.J. · 2018 · DOI 10.1098/rspb.2017.2418
Broad snouted cladoselachian with sensory specialization at the base of modern chondrichthyansKlug, C.; Coates, M.I.; Frey, L.; Greif, M.; Jobbins, M.; Pohle, A.; Lagnaoui, A.; Haouz, W.B.; Ginter, M. · 2023 · DOI 10.1186/s13358-023-00266-6
A new operculate symmoriiform chondrichthyan from the Late Mississippian Fayetteville Shale (Arkansas, United States)Bronson, A.W.; Pradel, A.; Denton, J.S.S.; Maisey, J.G. · 2024 · DOI 10.5252/geodiversitas2024v46a4
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

Report an evidence issue ↗