Evidence item

An earlier Jurassic mammaliaform was reported as the earliest-known swimming mammal, so Dongoconodon is not earliest under an unqualified mammal definition. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 25935

Source: Scientists Discover First Swimming Mammal From The Jurassic · locator {} · excerpt hash sha256:6a0058ab7786ef217ab1160eb88f575688c18cf79582db6af8f71906a394a130

Exact excerpt

Castorocauda is the earliest-known mammal that had specialized skeletal and soft-tissue features for swimming ... dated approximately 164 million years ago.

Linked claims

Claim	Direction	Relevance	Steps	Counted
f398dfca	CONTRADICT	DIRECT	0	yes

Audits

None.