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Juvenile, Iowa Tarkio Valley Giant Ground Sloth. Megalonyx jeffersonii (Desmarest, 1822). SUI 102849A
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Juvenile, Iowa Tarkio Valley Giant Ground Sloth. Megalonyx jeffersonii (Desmarest, 1822). SUI 102849A

Holmes A Semken
University of Iowa, Department of Earth and Environmental Sciences
2018
DOI: 10.25820/9qeq-ha53
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SUI 102849A juvenile rib, right, complete32.65 MBDownloadView
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SUI 102849B juvenile vertebra, thoracic, axial, epiphysis37.02 MBDownloadView
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SUI 102849C juvenile scapula, left, complete48.09 MBDownloadView
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SUI 102849D juvenile rib #2, right, complete22.72 MBDownloadView
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SUI 102849E juvenile rib #4, right, complete30.29 MBDownloadView
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Abstract

Specimen exposed during 1993 flood. Discovered in creek bed by Bob and Sonia Athen in 2001. Tiemann specimens recovered from under cut bank. Athen specimens in creek bed or under south bank. Specimens from this site include: Megalonyx jeffersoni 101037 (adult), 102849 (juvenile), 130544 (infant), and Paramylodon harlani 116925.
Paleontology Megalonyx jeffersonii Tarkio Valley ground sloth Pilosa Late Wisconinan Quaternary Xenarthra Megalonychidae Gunder formation

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