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Amazonsaurus maranhensis (Carvalho, Avilla, and Salgado 2003)
Earlier, information was requested on this taxon. I don't much about
sauropods, but I'll try to divulge a little from the paper.
Carvalho, Avilla, and Salgado (2003)
Amazonsaurus = "For the type-locality which is part of the Brazilian Legal
Amazon region, plus _sauros_, Greek for lizard, reptile." (Carvalho et al.
A. marahensis = "From the Brazilian state of Maranhao." (Carvalho et al. 2003,
Mata, Itapecuru-Mirim County, Maranhao State, Brazil.
Itapecuru Formation, Parnaiba Basin, EK (Aptian-Albian).
Diagnosis- Small size; caudal neural spines straight and posteriorly inclined,
with lateral laminae formed by the spinoprezygapophyseal and
postzygodiapophyseal laminae which, at least in the anterior ones, bend
anteriorly in such a way that the anterior surface of the lamina is concave
while the posterior surface is convex. (Carvalho et al. 2003, 699)
MN 4558-V (dorsal neural spine), UFRJ-DG 58-R/9 (dorsal neural spine), MN
4559-V (dorsal centrum), MN s/n-V (dorsal centrum), neural spine of anterior
caudal vertebra (UFRJ-DG 58-R/7), one mid caudal vertebra (MN 4555-V), one
mid-posterior caudal vertebra (MN 4560-V), one posterior caudal vertebra (MN
4556-V), one posterior caudal vertebra (UFRJ-DG 58-R/10), four cehvrons
(UFRJ-DG 58-R/2 through [...] 58-R/5), four more chevrons (MN 4564-V), ilium
(UFRJ0-DG 58-R/1), partial pubis (MN s/n-V), and three ribs (MN 4562-V).
The citation is-
Carvalho, I., L. Avilla, and L. Salgado (2003). Amazonsaurus maranhensis gen.
et sp. nov. (Sauropoda, Diplodocoidea) from the Lower Cretaceous
(Aptian-Albian) of Brazil. Cretaceous Research 24: 697-713.
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