Sylviornithidae

Sylviornithidae is an extinct family of flightless birds. Tradiationally assumed to be within Galliformes, recent phylogenetic studies showcase that they rest outside of the galliform crown-group, making them the most recently lived non-galliform Pangalliformes. For the longest time it has been used as a monotypic family for Sylviornis, but recent studies showcase that Megavitiornis was part of this clade as well.

Sylviornithidae

Sylviornithidae is an extinct family of flightless birds. Tradiationally assumed to be within Galliformes, recent phylogenetic studies showcase that they rest outside of the galliform crown-group, making them the most recently lived non-galliform Pangalliformes. For the longest time it has been used as a monotypic family for Sylviornis, but recent studies showcase that Megavitiornis was part of this clade as well.