ITAPEUASAURUS
a plant-eating rebbachisaurid sauropod dinosaur from the Late Cretaceous of Brazil
Pronunciation: ee-tah-PAY-oo-ah-SOR-us
Meaning: Itapeua Lizard
Author/s: Lindoso
et al. (
2019)
Synonyms: None known
First Discovery: Maranhão State, Brazil
Acta Ordinal: #1016
Itapeuasaurus cajapioensis
(Itapeua Lizard from Cajapió)Etymology
Itapeuasaurus is derived from "Itapeua" (for Itapeua beach) and the Greek "sauros" (lizard).
The
species epithet,
cajapioensis, is ferived from "Cajapió" (for the Cajapió municipality in which it was found ) and the Latin "ensis" (from).
Discovery
The remains of
Itapeuasaurus were discovered at in the Alcântara Formation (Itapecuru Group) on Itapeua beach in the Cajapió municipality, Maranhão State, Brazil, by fisherman Carlos Wagner Silva in November 2014.
The
holotype (UFMA. 1.10.1960), housed in the fossil collection of the Universidade Federal do Maranhão, consists of a partial back vertebra (UFMA. 1.10.1960-01) and five tail vertebrae (UFMA. 1.10.1960-03, 1.10.1960-04,
1.10.1960-05 and 1.10.1960-07, 1.10.1960-08).
The paratype includes the top part of a vertebral spine from the back (UFMA. 1.10.1960-02), one tail vertebra (UFMA. 1.10.1960-06), two chevrons (UFMA. 1.10.1960-10 and 1.10.1960-11), and a pelvic bone (UFMA. 1.10.1960-09).
Referred fossils include tail vertebrae (1.10.19 60-12 and 1.10.19 60-13), vertebral spines (1.10.19 60-14, 1.10.19 60-15, 1.10.19 60-16, 1.10.19 60-17, 1.10.19 60-18 and 1.10.19 60-19), unidentified fragments (1.10.19 60-20 and 1.10.19 60-21), and a rib (1.10.19 60-22).
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Cenomanian
Age range: 100-94 mya
Stats:
Est. max. length: ?
Est. max. hip height: ?
Est. max. weight: ?
Diet: Herbivore
Itapeuasaurus
cajapioensis
References
• Medeiros MA, Arcanjo SH, Carvalho IdS, Pereira AA, Lindoso RM, Mendes ID, de Sousa EP, Costa Filhao JF and Siqueira WdS (2015) "Nova ocorrência de Diplodocoidea na Bacia de São LuÍs (Cretáceo, Cenomaniano), norte do Maranhão" [New occurrence of Diplodocoidea in the São Luís Basin (Cretaceous, Cenomanian), northern Maranhão].
Anais do 14° Simpósio de Geologia da Amazônia. Recursos Minerais da Amazônia e suas Implicações Socioeconômicas. Livro de Resumos.
• Lindoso RM, Medeiros MAA, Carvalho IdS, Pereira AA, Mendes ID, Iori FV, Sousa EP, Arcanjo SHS and Silva TCM (2019) "A new rebbachisaurid (Sauropoda: Diplodocoidea) from the middle Cretaceous of northern Brazil".
Cretaceous Research, 104: 104191. DOI: 10.1016/j.cretres.2019.104191.
• Rego ACNdM, Araújo-Júnior HId, Souza Barbosa FHd and Medeiros MA (2026) "Biostratinomic aspects of Itapeuasaurus cajapioensis (Dinosauria, Diplodocoidea) from the Alcântara Formation, Cenomanian of the São Luís Basin, Northeast of Brazil".
Cretaceous Research: 106495. DOI: 10.1016/j.cretres.2026.106495.
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To cite this page:
Atkinson, L.
"
ITAPEUASAURUS :: from DinoChecker's dinosaur archive".
‹
http://www.dinochecker.com/dinosaurs/ITAPEUASAURUS›. Web access: 01st Oct 2026.
