Temporal range: latest Campanian-Maastrichtian, ~73–66 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification (disputed)
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
incertae sedis
Genus:
†Argentodites
Kielan-Jaworowska et al., 2007
Binomial name
†Argentodites coloniensis
Kielan-Jaworowska et al., 2007
Argentodites is a possible multituberculate mammal from the Cretaceous of Argentina. The single species, Argentodites coloniensis, is known from a single blade-like fourth lower premolar (p4) from the La Colonia Formation, which is mostly or entirely Maastrichtian (latest Cretaceous) in age. The p4 is 4.15 mm long and bears eight cusps on its upper margin and long associated ridges on both sides. The enamel consists of prisms that are completely or partly surrounded by a sheath and that are on average 6.57 μm apart. Zofia Kielan-Jaworowska, who described and named the fossil in 2007, regarded it as a multituberculate, perhaps a cimolodontan—and thus, a member of a mostly Laurasian (northern) group and an immigrant to Argentina from North America—on the basis of the shape of the tooth and features of its enamel. In 2009, however, two teams argued that Argentodites may in fact be close to or identical with Ferugliotherium, a member of the small Gondwanan (southern) group Gondwanatheria; although their relationships are disputed, gondwanatheres may themselves be multituberculates.
Argentodites is a possible multituberculate mammal from the Cretaceous of Argentina. The single species, Argentodites coloniensis, is known from a single...
that the p4 of Argentodites did not differ materially from that in the jaw they allocated to Ferugliotherium, and that Argentodites was based on a specimen...
discovered from the formation include Reigitherium, Coloniatherium, Argentodites and Ferugliotherium. Remains of an enantiornithine and, possibly, of...
†Vintana Family †Ferugliotheriidae †Ferugliotherium †Trapalcotherium (?) †Argentodites (?) †Magallanodon Family †Adalatheriidae †Adalatherium Family †Groeberiidae...
discovered from the formation include Reigitherium, Coloniatherium, Argentodites and Ferugliotherium. Remains of an enantiornithine and, possibly, of...
fed on fruits, invertebrates and possibly smaller vertebrates. †Argentodites †Argentodites coloniensis 70–66 Ma La Colonia Formation, Chubut Province, Argentina...
American docodont, and the possible gondwanatherians or multituberculates Argentodites coloniensis and Ferugliotherium windhauseni. Remains of an enantiornithine...
Genus Species Location Stratigraphic position Material Notes Images Argentodites A. coloniensis A possible gondwanatherian or multituberculate Coloniatherium...
Formation (Late Cretaceous of Argentina) as a new multituberculate genus, Argentodites, in 2007, but Gurovich and Beck noted close similarities between this...
Suborder †Cimolodonta Genus †Ameribaatar Eaton & Cifelli 2001 Genus †Argentodites Kielan-Jaworowska et al. 2007 Genus †Bryceomys Eaton 1995 Genus †Bubodens...
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