Li, F.-W.; Nishiyama, T.; Waller, M.; et al.
topology · morphology · methods
Two Anthoceros genomes and comparative analyses illuminate sampled hornwort biology; they do not date the phylum's origin.
Li and colleagues illustrate sporophytes, gametophytes and stomata of Anthoceros agrestis Bonn; these named living materials provide a morphological example for hornworts, without establishing that every hornwort species has identical structures or resolving stomatal homology across land plants.
claim:taxon:anthocerotophyta:morphologyTwo Anthoceros genome assemblies support hornwort comparative placement and reveal lineage-specific genomic features; two species cannot date Anthocerotophyta or represent every hornwort lineage.
claim:taxon:anthocerotophytaAnthocerotophyta has no supported scalar temporal range in the cited evidence: two living hornwort genomes inform phylogenomics but do not establish a 470 Ma fossil or calibrated phylum boundary, so the former 470–0 Ma display is withheld.
claim:taxon:anthocerotophyta:range-boundary-rc50