PaleoDB taxon number: 179007
Full reference: H. Howard. 1978. Late Miocene marine birds from Orange County, California. Natural History Museum of Los Angeles County Contributions in Science 290:1-26
Type specimen: LACM 31173, a limb element (left ulna). Its type locality is Laguna Niguel, which is in a Tortonian basinal (siliciclastic) sandstone/shale in the Monterey Formation of California.
Ecology: ground dwelling carnivore