†Ellimma longipectoralis sp. nov. (Teleostei: Clupeomorpha: †Ellimmichthyiformes) from the Aptian of the Santos Basin, southeastern Brazil. (March 2020)

• Record Type: Journal Article
• Authors: Polck, Márcia Aparecida dos Reis; Gallo, Valéria; de Figueiredo, Francisco J.; Viana, Samuel Magalhães; dos Santos, Viviane Sampaio Santiago; de Queiroz Neto, João Villar; Jahnert, Ricardo Jorge
• Is Part Of: Journal of South American earth sciences. Volume 98(2020)
• Publication Date: 2020-03
• Subjects: New species -- †Ellimmichthyiformes -- Pre-salt sediments -- Santos Basin -- Aptian -- Southeastern Brazil; CM Carnegie Museum of Natural History, Pittsburgh -- DGM Museu de Ciências da Terra, Rio de Janeiro (formerly Divisão de Geologia e Mineralogia do Departamento Nacional de Produção Mineral) -- DGUFRJ Departamento de Geologia of the Universidade Federal do Rio de Janeiro, Rio de Janeiro -- MCP Museu de Ciências e Tecnologia da Pontifícia Universidade Católica, Porto Alegre -- MCT Museu de Ciências da Terra – Serviço Geológico do Brasil, Rio de Janeiro -- Pz.UERJ Paleozoological Collection of the Universidade do Estado do Rio de Janeiro, Rio de Janeiro -- BMNH P Natural History Museum, London (formerly, British Museum of Natural History); Geology -- Latin America -- Periodicals; Earth sciences -- Latin America -- Periodicals; Geology -- Antarctica -- Periodicals; Earth sciences -- Antarctica -- Periodicals; Geology -- Caribbean Area -- Periodicals; Earth sciences -- Caribbean Area -- Periodicals; Géologie -- Amérique latine -- Périodiques; Sciences de la terre -- Amérique latine -- Périodiques; Géologie -- Antarctique -- Périodiques; Sciences de la terre -- Antarctique -- Périodiques; Géologie -- Caraïbes (Région) -- Périodiques; Sciences de la terre -- Caraïbes (Région) -- Périodiques; Earth sciences; Geology; Antarctica; Caribbean Area; Latin America; Periodicals; 550.5
• DOI: 10.1016/j.jsames.2019.102318
• Languages: English
• ISSNs: 0895-9811

Abstract

Abstract: We described herein † Ellimma longipectoralis sp. nov., a new paraclupeid fish from the Aptian laminites of the pre-salt section in the Barra Velha Formation, Santos Basin, southeastern Brazil. This new species is represented by a single articulated specimen with elongate body and expanded pectoral region. It differs from the other nominal species of † Ellimma († E. branneri and † E. cruzae ) mainly by having a long pectoral fin (with 10–11 fin rays, reaching the seventh pleural rib), a complex arrangement of the supraorbital sensory canal in the frontal, predorsal scutes ornamented with straight ridges, and edentulous jaws and palate. This is a new occurrence of †ellimmichthyiforms in the Early Cretaceous and in offshore sedimentary basin, extending their geographical distribution southwards in the Western Gondwana. Highlights: A new paraclupeid fish is described from the Aptian of the pre-salt section on the Southeastern Brazil. The new species has an elongate body and expanded pectoral region. This is a new occurrence of †ellimmichthyiforms in the Early Cretaceous and in offshore sedimentary basin. This new occurrence extends the geographical distribution of †ellimmichthyiforms southwards in the Western Gondwana.