Content uploaded by Eli Amson
Author content
All content in this area was uploaded by Eli Amson on Feb 21, 2018
Content may be subject to copyright.
Dataset
3D models related to the publication: Neogene sloth assemblages
(Mammalia, Pilosa) of the Cocinetas Basin (La Guajira, Colombia):
implications for the Great American Biotic Interchange
Amson Eli1,2,3*, Carrillo Juan David2, Jaramillo Carlos1
1Smithsonian Tropical Research Institute, Box 0843-03092, Balboa-Ancon, Panama
2Pal¨
aontologisches Institut und Museum der Universit¨
at Z¨
urich, Z ¨
urich, Switzerland 2, CH-8006
3Humboldt-Universit¨
at, AG Morphologie und Formengeschichte, Bild Wissen Gestaltung - ein interdisziplin¨
ares Labor & Institut f¨
ur Biologie,
Berlin, Germany D-10115
*Corresponding author: eli.amson1988@gmail.com
Abstract
The present 3D Dataset contains the 3D models analyzed in Neogene sloth assemblages (Mammalia, Pilosa) of
the Cocinetas Basin (La Guajira, Colombia): implications for the Great American Biotic Interchange. Palaeontol-
ogy. doi: 10.1111/pala.12244.
Keywords: Great American Biotic Interchange, Neotropics, palaeobiodiversity, Tardigrada, Ware Formation
Submitted: 2016-04-05, published online: 2016-06-08. doi: 10.18563/m3.2.1.e3
Model IDs Taxon Short
description
M3#106 MUN
STRI 12924
cf.
Nothrotherium
Fragmentary
basicranium with
posterior portion
of the skull roof.
M3#107 MUN
STRI 16535
Scelidotheriinae
gen. et sp. indet.
Complete left
ulna.
Table 1. List of models
INTRODUCTION
We here present the surface models of two specimens of sloths
(Mammalia, Tardigrada) coming from the Late Pliocene Ware
Formation (Cocinetas Basin, La Guajira, Colombia, see Ta-
ble 1). Along with three additional sloth taxa found in the
same Formation, these specimens document the great diver-
sity of this Neotropical locality. Furthermore, they represent a
sloth assemblage from a locality just a few hundred thousand
years older than the classically recognized first main pulse
of the Great American Biotic interchange, that is located few
hundred kilometers away from the Isthmus of Panama, the
most likely route of migration of terrestrial taxa. These speci-
mens are hence important in the understanding of this major
paleobiogeographic event.
METHODS
The fossil specimens were scanned with an Artec Spider 3D
using the geometry and texture tracking setting and processed
with Artec Studio 9 Education Software (Artec 3D). The 3D
surfaces scans were aligned semi-automatically with Artec
Studio 9. The aligned scans were converted into a single coor-
dinate system using the Global Registration function (texture
and geometry) and then fused into a single 3D model with the
Fast Fusion function of Artec Studio. The 3D surface models
are provided in .ply format, and can therefore be opened with
a wide range of freeware.
ACKNOWLEDGEMENTS
Smithsonian Tropical Research Institute; Alexander von Hum-
boldt Foundation; Swiss National Fund, grant number to M.
R. S
´
anchez-Villagra: SNF 31003A-149605; National Geo-
graphic Society; Anders Foundation; Gregory D. and Jennifer
Walston Johnson; National Science Foundation, grant number:
EAR 095767.
BIBLIOGRAPHY
Amson, E., Carrilo, J.D., Jaramillo, C. 2016. Neogene sloth
assemblages (Mammalia, Pilosa) of the Cocinetas Basin (La
Guajira, Colombia): implications for the Great American
Biotic Interchange. Palaeontology. doi: 10.1111/pala.12244