ancient river delta system

Long-Snouted Bandringa Sharks to a Tropical Coastline to Spawn 310 Million Years Ago
Jan 8, 2014
Like salmon in reverse, long-snouted Bandringa sharks migrated downstream from freshwater swamps to a tropical coastline to spawn 310 million years ago, leaving behind fossil evidence of one of the earliest known shark nurseries. That's ...

Tags: Bandringa sharks, shark nurseries, migration, ancient river delta system