A CONTRIBUIÇÃO DA PALEONTÓLOGA LÉLIA DUARTE PARA A COLEÇÃO DE VEGETAIS FÓSSEIS DO DEPARTAMENTO DE BIOLOGIA DA UERJ

A coleção de vegetais fósseis do Departamento de Biologia Vegetal, no Instituto de Biologia Roberto Alcantara Gomes, da Universidade do Estado do Rio de Janeiro (UERJ) foi organizada e mantida por muitos anos pela professora e paleobotânica Lélia Duarte. Nesta coleção há exemplares fósseis procedentes de várias unidades litoestratigráficas do Brasil. Sugere-se aqui a criação da Coleção Paleobotânica Lélia Duarte em homenagem a esta ilustre pesquisadora, e neste trabalho pretende-se tornar acessível esta coleção de vegetais fósseis relacionando os principais exemplares depositados, dentre os 370 exemplares que a compõe. DOI:  http://dx.doi.org/10.14295/cad.cult.cienc.v14i2.105

DISTRIBUIÇÃO ESPACIAL DE ACANTHURIDAE EM UMA POÇA DE MARÉ, SERRAMBI, PERNAMBUCO

O presente estudo tem o objetivo descrever, através de censo visual, a distribuição espacial da comunidade de acanturídeos em uma poça de maré de Serrambi (PE). Foram amostradas a abundância e a distribuição das três espécies de cirurgiões mais comuns no Brasil: Acanthurus bahianus, A. chirurgus e A. coeruleus. Os resultados sugerem que A. bahianus foi a espécie mais abundante na poça, e a presença de muitos indivíduos jovens indica provavelmente que o período de abril a junho é uma época de recrutamento desta espécie. Comparando a distribuição espacial das três espécies, verificou-se que A. coeruleus ocupa mais freqüentemente a parte mais funda da poça, enquanto A. bahianus permanece mais entocado, e A. chirurgus distribui-se mais em áreas intermediárias em poças de maré.   ABSTRACT Spatial distribuition of Acanthuridae species in a tide pool, Serrambi, Pernambuco. The present study has the objective to describe the special distribution of acanturids in a tide pool of Serrambi (PE), through sub-aquatic visual censes. It was sampled the abundance and distribution of the three species of more common surgeons in Brazil: Acanthurus bahianus, Acanthurus chirurgus and Acanthurus coeruleus. The results suggest that A. bahianus was the most abundant species in the pool, and the presence of many young individuals probably indicate that the period of April to June is a time of recruitment of this species. Comparing the space distribution of these three species, it was verified that A. coeruleus more frequently swim near subtract, while A. bahianus stays into reef holes and A. chirurgus occupied more regions in the tide pool. Keywords: Acanthuridae, spacial distribution, visual cense, tide pool

Concreções calcárias da formação Santana, bacia do Araripe: uma proposta de classificação.

18 pagesThe calcareous concretions of the Santana Formation have been known since 1800 thanks to the work of João da Silva Feijó (1800). Their study was promoted internationally by the report of von Spix and von Martius (1823-1831), and their richness in fossil fishes led Silva Santos to name them “ichthyoliths” in 1950. Here we propose a classification for the various types of calcareous concretions that occurred in the Santana Formation (Late Cretaceous, Araripe Basin). We consider their geographic distribution and we propose a terminological uniformization for the descriptions of that material. This will serve future statistical, geographical, geochemical and taphonomical studies that, altogether, will improve our understanding of the Santana ‘Lagerstätten'. The classification criteria are: the number and position of the fossils in the concretions, the dimensionality of the macrofossils, the relationship matrix/fossil, the shape of the concretions, as well as their lithological structure and texture. The contents in fossils is classified as afossiliferous, unifossiliferous and multifossiliferous; the relative position of the fossils in the concretions can be described as superior, medium, inferior, traverse, dispersed or in parallel planes; the preservation type is characterized by adjectives such as “three-dimensional” and “compressed”; the percentage of matrix in relation to the macrofossil is expressed as abundant matrix, regular, scarce and short. The shape of the concretion can be subspherical, ellipsoidal, oval-elongated and irregular; the sedimentological structure of the matrix is classified as laminated and little laminated, while its texture is either a fine matrix or a very fine matrix

New findings on Dendrobranchiata fossils of the Romualdo Formation, Araripe Basin, Northeast of Brazil

Alencar, Damares Ribeiro, Oliveira, Gustavo Ribeiro De, Pinheiro, Allysson Pontes, Saraiva, Antônio Álamo Feitosa (2020): New findings on Dendrobranchiata fossils of the Romualdo Formation, Araripe Basin, Northeast of Brazil. Zootaxa 4731 (1): 63-74, DOI: https://doi.org/10.11646/zootaxa.4731.1.

A new genus and species of Solenoceridae (Crustacea, Decapoda, Dendrobranchiata) from the Cretaceous (Aptian/Albian) of the Araripe Sedimentary Basin, Brazil

Alencar, Damares Ribeiro, Pinheiro, Allysson Pontes, Saraiva, Antônio Álamo Feitosa, Oliveira, Gustavo Ribeiro De, Santana, William (2018): A new genus and species of Solenoceridae (Crustacea, Decapoda, Dendrobranchiata) from the Cretaceous (Aptian/Albian) of the Araripe Sedimentary Basin, Brazil. Zootaxa 4527 (4): 494-500, DOI: 10.11646/zootaxa.4527.4.

New Cretaceous (Aptian/Albian) boxer shrimp (Crustacea, Decapoda, Stenopodidea) from the Araripe Sedimentary Basin, NE, Brazil.

Stenopodidean shrimps are mostly cryptic in their habitats and are typically related with coral rubble or dead coral heads, rocks and crevices, and in association with other marine invertebrate such as sponges, crinoids and corals. Here, we describe a new stenopodidean shrimp, Dubiostenopus parvus n. gen. n. sp., from the Romualdo Formation (Aptian/Albian), Araripe Sedimentary Basin. The specimen studied here was collected in the municipality of Trindade, Pernambuco State, Brazil. The specimen is the imprint of a small shrimp approximately 10 mm in length, with a robust cephalothorax, a well-developed cheliped in the third pereiopod, and a second pleura not overlapping the first. This is the first stenopodidean shrimp described from the Romualdo Formation and the first described from South America. Comparisons with other Brazilian shrimp-like fossils are made, as well as comparisons with all other fossil stenopodideans

New Antarctic clawed lobster species (Crustacea: Decapoda: Nephropidae) from the Upper Cretaceous of James Ross Island

A new species of nephropid lobster, Hoploparia echinata sp. nov., from the James Ross Island in the Antarctic Peninsula is here described and illustrated. The material was collected in the Santa Marta Formation (Santonian–-Campanian), the basal unit of the Marambio Group, Larsen Basin, located in the western portion of the Antarctic Peninsula. Hoploparia echinata sp. nov. can easily be differentiated from its congeners by the presence of distinct short spines on dorsal and ventral margins on the third maxillipeds, merus of the chelipeds and pereopods; these are the characters not described in other Hoploparia species so far