Amitabha (bird)

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Temporal range: Middle Eocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Subclass: Neornithes
Infraclass: Neognathae
Genus: Amitabha
Gulas-Wrobleski and Wrobleski, 2002
Species: A. urbsinterdictensis
Binomial name
Amitabha urbsinterdictensis
Gulas-Wrobleski and Wrobleski, 2002

Amitabha urbsinterdictensis is an ancient bird from the Middle Eocene (approximately 50 million years before the present) in North America. One specimen has been found to date. Bonnie Gulas-Wrobleski and Anton Wrobleski described and named it in 2002.[1]


The only known specimen of A. urbsinterdictensis is the type, AMNH 30331, which consists of a partial skeleton, including an incomplete humerus, scapula, sternum, and pelvis.[2] It is from the Bridger Formation of Wyoming, which is of Middle Eocene age.[1]


In their 2002 paper, Gulas-Wrobleski and Wrobleski found A. urbsinterdictensis to be a crown-group galliform, and a member of the "phasianoids", the group that also includes such birds as peacocks, pheasants, and turkeys.[1] Gerald Mayr criticized this analysis.[2] A 2009 study by Daniel Ksepka found the species to belong neither to the crown nor the stem of the galliformes, but rather to have affinities to the rails.[3]


Explaining their choice of name, Gulas-Wrobleski and Wrobleski wrote, "urbsinterdictensis refers to the "Forbidden City" locality of Wyoming. Amitabha is for Amitabha Buddha, the bodhisattva of enlightenment and compassion, who commonly adopts the form of a peacock when incarnated in the material world".[1]


Literature cited[edit]

  • Gulas-Wroblewski, B. E.; Wroblewski, A. F.-J. (2002). "A crown-group galliform bird from the Middle Eocene Bridger Formation of Wyoming". Palaeontology 46: 1269–1280. doi:10.1046/j.0031-0239.2003.00340.x. 
  • Mayr, G. (2009). Paleogene Fossil Birds. Berlin: Springer. ISBN 3-540-89627-9. 
  • Ksepka, D. T. (2009). "Broken gears in the avian molecular clock: new phylogenetic analyses support stem galliform status for Gallinuloides wyomingensis and rallid affinities for Amitabha urbsinterdictensis". Cladistics 25: 173. doi:10.1111/j.1096-0031.2009.00250.x.