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Right Ulna (Lower Arm Bone ) of the Horned Screamer Anhima cornuta (YPM 109923)


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Phylogenic Position
Aves - Neognathae - Anseriformes - Anhimidae - Anhima - Anhima cornuta
Species Description
The Horned Screamer lives in the wetlands throughout South America. Though it is in the family Anatidae (waterfowl) and possesses partial webbed feet, it looks more like gamebirds, with its chicken-like beak and long legs. The Horned Screamer is found in well-vegetated swamps, where they subsist solely on water plants; its tongue is horny (not fleshy), which helps deal with tough plant material. Like its name suggests, the Horned Screamer is very vocal, with a loud, screeching call; a long quill, made of cartilage, protrudes from its head. While takeoff is ponderous, the Horned Screamer is a capable flier; abundant airsacs in its bones and under the skin allow for soaring flight, and make it lighter than its size would suggest.
Specimen Information
Species Anhima cornuta (Horned Screamer)
Element Right Ulna (Lower Arm Bone )
Specimen Number YPM 109923
Sex Female
Location Peru: Madre de Dios, Puerto Maldonado, Explorers Inn
Geological Age Recent
 
Technical Information
Scanner Konica Minolta Range7
Resolution 40 ┬Ám
Number of Data Points 24954
Number of Data Polygons 12479
Date Scanned June 07, 2011
Scan Technician Ariana Masi
Edited By Ariana Masi
 
Photographs


View All 5 Images

Download Digital Model Size
STL File Not Publicly Available 1.2 MB
Other Anhima cornuta (Horned Screamer) Elements
Specimen Element
MCZ 346993 Sternum (Breast Bone)
YPM 109923 Sternum (Breast Bone)
YPM 109923 Left Femur (Left Upper Leg Bone)
YPM 109923 Right Femur (Right Femur)
YPM 109923 Left Humerus (Left Upper Arm Bone)
YPM 109923 Right Humerus (Right Upper Arm Bone)
YPM 109923 Furcula (Wishbone)
YPM 109923 Right Tarsometatarsus (Right Fused Element Consisting of Ankle and Middle Foot Bones)
YPM 109923 Left Tarsometatarsus (Left Fused Element Consisting of Ankle and Middle Foot Bones)
YPM 109923 Left Ulna (Lower Arm Bone )
YPM 109923 Left Radius (Lower Arm Bone)
YPM 109923 Right Radius (Lower Arm Bone )
YPM 109923 Left Tibiotarsus and Fibula (Left Middle Leg Bones)
YPM 109923 Right Tibiotarsus and Fibula (Right Middle Leg Bones)
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