A new species of Petalobrissus Lambert 1916 (Echinoidea: Faujasiidae) from the Jandaíra Formation, Potiguar Basin (Brazil)

Abstract

A new Late Cretaceous species of Petalobrissus, Petalobrissus lehugueurae sp. nov., is described from the Jandaíra Formation, Potiguar Basin, state of Rio Grande do Norte. To date, this genus comprises a total of 20 species, only two of which, Petalobrissus setifensis and Petalobrissus cubensis have so far been recorded from the Jandaíra Formation. Petalobrissus lehugeurae sp. nov. is distinguished from its congeners in that gonopores occupy only a small portion of the genital plates, in having a slit-like periproct and a unique abrupt depression of the test that forms a pronounced keel below the periproct. In addition, an identification key to species of Petalobrissus is presented.

The Porifera, Cnidaria, Bryozoa, and Echinodermata Collections of the Universidade Federal Do Ceará: Contributions to the Marine Biodiversity Knowledge of Northeastern Brazil

“…Although regional biological collections can help to better understand the diversity (recent and fossil) (e.g., D 'Ávila, 2016;Heydrich, 2016;Santos & Mello, 2016;Alves et al, 2018;Gondim;Christoffersen & Pereira-Dias, 2020;Bezerra, 2021;Franklin Jr., 2021;Faria;Xavier & Freitas, 2021;Garcia et al, 2021;Rocha-Barreira et al, 2021), except for a few sporadic financial supports (Marinoni & Peixoto, 2010), there has never been a long-term Cristiane Xerez Barroso, Sula Salani, Mariany Oliveira Arruda, Maiara Queiroz Monteiro da Silva, Marcos Vieira da Silva, Helena Matthews-Cascon policy formation and maintenance of scientific collections in Brazil (Zaher & Young, 2003). Many Brazilian zoological collections are in institutions, where researchers have difficulty in obtaining the necessary resources to keep them (Zaher & Young, 2003).…”

Equinoides Da Formação Jandaíra, Cretáceo Superior Da Bacia Potiguar, Nordeste Do Brasil: Estado Da Arte

“…Gráfico dos tipos de publicação em ordem cronológica (eixo x = Maury, 1925Maury, , 1934aMortensen, 1948Mortensen, , 1951Santos & Cunha, 1958;Santos, 1960;Beurlen, 1961a, b;Kier, 1962;Beurlen, 1963Beurlen, , 1964aBeurlen, , b, 1966Beurlen, , 1967Brito, 1980Brito, , 1981aOliveira, 1984;Smith & Bengtson, 1991;Santos et al, 1994;Nérauderau & Mathey, 2000;Cassab, 2003;Manso, 2003;Oliveira, 2013;Oliveira et al, 2013aOliveira et al, , b, 2014Oliveira et al, , 2015Alves et al, 2018;Xavier, 2021). Maury, 1925Maury, , 1934aMortensen, 1948Mortensen, , 1951Santos & Cunha, 1958;Santos, 1960;Beurlen, 1961a, b;Kier, 1962;Beurlen, 1963Beurlen, , 1964aBeurlen, , b, 1966Beurlen, , 1967Brito, 1980Brito, , 1981aOliveira, 1984;Smith & Bengtson, 1991;Santos et al, 1994;Nérauderau & Mathey, 2000;Cassab, 2003;<...…”

“…Desde a publicação em artigo de Beurlen, em 1966, o número de artigos teve um aumento de frequência, tornando-se o tipo de publicação predominante (Maury, 1934b;Beurlen, 1961aBeurlen, , 1964aBeurlen, , 1966Beurlen, , 1967Kier, 1962;Brito, 1980Brito, , 1981aSmith & Bengtson, 1991;Nérauderau & Mathey, 2000;Oliveira et al, 2013aOliveira et al, , b, 2014Oliveira et al, , 2015Alves et al, 2018).…”

“…P. lehugeurae foi recentemente descrita por Alves et al (2018). P. cubensis, anteriormente referida como Phyllobrissus brasiliensis Beurlen, 1964, foi revisada e sinomizada por Smith & Bengtson (1991).…”

“…Figure 3. Chart of publication types in chronological order (x axis= Maury, 1925= Maury, , 1934aMortensen, 1948Mortensen, , 1951Santos & Cunha, 1958;Santos, 1960; Beurlen, 1961a, b;Kier, 1962;Beurlen, 1963Beurlen, , 1964a Beurlen, , b, 1966Beurlen, , 1967Brito, 1980Brito, , 1981aOliveira, 1984;Smith & Bengtson, 1991;Santos et al, 1994; Nérauderau & Mathey, 2000;Cassab, 2003;Manso, 2003;Oliveira, 2013;Oliveira et al, 2013a Oliveira et al, , b, 2014Oliveira et al, , 2015Alves et al, 2018;Xavier, 2021).…”