Suciacarpa

Suciacarpa is an extinct genus of asterid flowering plants in the order Cornales. It is known from the fossil species Suciacarpa starrii, found in Western North America.

S. starrii is known from a pair of anatomically preserved fruits found in north-western Washington state, United States. The holotype specimen was collected on Sucia Island while the paratype was collected on Little Sucia Island. Both fruits are preserved in calcareous nodules recovered from exposures of the Campanian age Cedar District Formation. The nodules formed in what is thought to have been a shallow marine shelf environment that also had ammonites and inoceramid bivalves. The formation has also preserved fossils of other terrestrial organisms including a single land snail, Condonella suciensis and a theropod femur, the first dinosaur identified from Washington State.

There is differing opinion regarding what latitude the Cedar district Formation sediments were deposited at in the Campanian. One suggestion, the Baja–British Columbia hypothesis, is that in the Cretaceous the area was located at about 30° north latitude, similar to Modern Baja California, and subsequent tectonic movement has shifted the area 3,000 km (1,900 mi) north to its present day location. The other suggestion also involves northward tectonic movement, but suggests the Cretaceous location for the sediments was approximately the region of Northern California.

At time of description the holotype specimen, UF 19276-54286, and paratype, UF 19304-54982, were residing in the paleobotanical collections housed by the Florida Museum of Natural History. The two fruits were first studied by Oregon State University paleobotanist Brian Atkinson, with his 2016 type description for the genus and species being published in the NRC Research Press journal Botany. Atkinson coined the genus name Suciacarpa as a combination of "Sucia" after the type locality and the Greek carpa meaning fruit. The specific epithet starrii was chosen as a patronym honoring David W. Starr, who helped collect the fossils and to increase awareness of Sucia Island in the paleontology community.