title: American alligator proximal pedal phalanges resemble human finger bones: Diagnostic criteria for forensic investigators.
abstract: A scientific approach to bone and tooth identification requires analysts to pursue the goal of empirical falsification. That is, they may attribute a questioned specimen to element and taxon only after having ruled out all other possible attributions. This requires analysts to possess a thorough understanding of both human and non-human osteology, particularly so for remains that may be morphologically similar across taxa. To date, forensic anthropologists have identified several potential 'mimics' for human skeletal remains, including pig teeth and bear paws. Here we document another possible mimic for isolated human skeletal elements--the proximal pedal phalanges of American alligators (Alligator mississippiensis) closely resemble the proximal and intermediate hand phalanges of adult humans. We detail morphological similarities and differences between these elements, with the goal of providing sufficient information for investigators to confidently falsify the hypothesis that a questioned phalanx is derived from an American alligator.
authors.affiliation: Department of Anthropology and Institute of Archaeology, One Bear Place Baylor University, One Bear Place, 97173, Waco, TX 76798, USA. Electronic address: joseph_ferraro@baylor.edu.
authors.forename: Joseph V
authors.initials: JV
authors.lastname: Ferraro
authors.affiliation: Department of Anthropology and Institute of Archaeology, One Bear Place Baylor University, One Bear Place, 97173, Waco, TX 76798, USA. Electronic address: katie_binetti@baylor.edu.
authors.forename: Katie M
authors.initials: KM
authors.lastname: Binetti
mesh_terms: D000489:Alligators and Crocodiles / Q000033:anatomy & histology*; D000818:Animals; D001842:Bone and Bones / Q000033:anatomy & histology*; D005260:Female; D050278:Finger Phalanges / Q000033:anatomy & histology; D005552:Forelimb; D018732:Forensic Anthropology; D006801:Humans; D008297:Male
keywords: Alligator; Bone identification; Forensic anthropology population data; Non-human; Phalanges