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Uniquely preserved gut contents illuminate trilobite palaeophysiology

Kraft, P. et al.

Year2023
Source roleprimary-study
DOI / ID10.1038/s41586-023-06567-7

Fitness and scope

range · morphology · ecology · event-mechanism · taxonomy · biogeography

Primary synchrotron microtomographic inventory of the gut contents of one Bohemolichas specimen; diet and gut chemistry remain bounded inferences.

Claim ledger

ecology · high

Synchrotron microtomography of Bohemolichas incola inventory specimen 8 maps ostracod, hyolith and stylophoran remains through the gut; prey identity is direct fossil content, while feeding rate, selectivity and neutral-to-alkaline chemistry are bounded inferences from one meal.

claim:event:bohemolichas-gut-contents
taxonomy · high

The profiled specimen is referred to Bohemolichas incola, while PBDB treats Bohemolichas as a subjective synonym of Uralichas; the profile preserves that taxonomic caveat.

claim:taxon:bohemolichas:taxonomy
biogeography · medium

The profile is restricted to one Šárka Formation specimen from the Prague Basin and does not define a genus-wide distribution.

claim:taxon:bohemolichas:biogeography
ecology · medium

Ostracod, hyolith and stylophoran remains directly document one meal; prey selectivity, feeding rate and usual diet remain inferred.

claim:taxon:bohemolichas:ecology
morphology · medium

Synchrotron microtomography maps the alimentary tract and shelly prey remains in inventory specimen 8.

claim:taxon:bohemolichas:morphology
fossil-range · medium

The 466–463 Ma interval is a formation-level context for the profiled specimen, not a global genus FAD, LAD or continuous duration.

claim:taxon:bohemolichas:fossil-range
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