An eye for an eye, a tooth for a tooth: archosaurian teeth from the Açu Formation (Albian–Cenomanian), Potiguar Basin, Northeast Brazil

2021 ◽  
pp. 105005
Author(s):  
Theo Baptista Ribeiro ◽  
Paulo Victor Luiz Gomes da Costa Pereira ◽  
Stephen Louis Brusatte ◽  
Carlos Roberto dos Anjos Candeiro ◽  
Lílian Paglarelli Bergqvist
2019 ◽  
Vol 32 (5) ◽  
pp. 1054-1080
Author(s):  
Anderson H. Melo ◽  
Peryclys R. O. Andrade ◽  
Antonio J. C. Magalhães ◽  
Daniel G. C. Fragoso ◽  
Francisco P. Lima‐Filho

2020 ◽  
Vol 114 ◽  
pp. 104517
Author(s):  
Paulo Victor Luiz Gomes da Costa Pereira ◽  
Theo Baptista Ribeiro ◽  
Stephen Louis Brusatte ◽  
Carlos Roberto dos Anjos Candeiro ◽  
Thiago da Silva Marinho ◽  
...  

2017 ◽  
Vol 36 (3) ◽  
pp. 173-178
Author(s):  
Iara Samara de Alcântara Silva ◽  
Alek André Costa de Sousa ◽  
Igor Viegas Alves Fernandes de Souza ◽  
Ramsés Capilla ◽  
Georgiana Feitosa da Cruz ◽  
...  

Author(s):  
Josevânia De Oliveira ◽  
Cynthia Lara de Castro Manso ◽  
Edilma De Jesus Andrade

Foi realizada a revisão sistemática dos equinoides pertencentes às ordens Phymosomatoida e Arbacioida da Formação Jandaíra, Bacia Potiguar provenientes de três localidades fossilíferas. Para a ordem Phymosomatoida foram revisadas as espécies Rosadosoma riograndensis (Maury, 1925) e Phymosoma major Coquand,1862, e para a ordem Arbacioida, Goniopygus sp. As espécies Cyphosoma majus (Coquand, 1862) e Phymosoma tinocoi (Santos, 1960) foram consideradas sinônimas de Phymosoma major. Goniopygus sp. foi  transferida para  Goniopygus durandi Perón & Gauthier, 1881. A partir dos dados biométricos dos exemplares de Rosadosoma riograndensis e Phymosoma major foi verificado que o diâmetro da carapaça influencia de forma significativa a altura das carapaças, assim como o diâmetro do perístoma. Além disso, foram observados diferentes estágios ontogenéticos nos exemplares analisados. Na Formação Jandaíra, os equinoides endocíclicos tiveram seu registro do Turoniano ao Santoniano. 


2013 ◽  
Author(s):  
Álvaro F. Campassi Reis ◽  
Cláudio C. Lima ◽  
Francisco Hilário R. Bezerra ◽  
Joaquim M. Ferreira ◽  
Aderson F. do Nascimento

Zootaxa ◽  
2017 ◽  
Vol 4258 (3) ◽  
pp. 257
Author(s):  
ALEX MANOEL ◽  
MARIA CRISTINA DA SILVA ◽  
ANDRÉ M. ESTEVES

A new species of the genus Acantholaimus is described from the South Atlantic, in the Potiguar Basin off the continental shelf of northeast Brazil. Acantholaimus marliae sp. n. is characterized by the long body; numerous somatic setae arranged in four sublateral longitudinal rows; buccal cavity with five solid teeth (four subventral and one dorsal), with the largest tooth dorsally located and the most protuberant between the subventral teeth shaped similarly to a "bottle opener"; and spiral fovea amphidialis. Acantholaimus marliae sp. n. is the only species described for the genus that has a spiral fovea amphidialis. This is the fifth species of Acantholaimus described from shallow water. An emended diagnosis of the genus is provided. 


Zootaxa ◽  
2020 ◽  
Vol 4731 (3) ◽  
pp. 359-370
Author(s):  
ALEX MANOEL ◽  
ANDRÉ M. ESTEVES ◽  
TATIANA F. MARIA

A new species of the genus Cephalanticoma is described for the Atlantic Ocean in the Potiguar Basin off the continental shelf of northeast Brazil. Cephalanticoma rugatusa sp. n. is characterized by bearing head capsule ending on the level of amphideal fovea, a tubular precloacal supplement and two rows of thin precloacal setae. Cephalanticoma rugatusa sp. n. differs from all other species of the genus by having a precloacal cuticular papilla in front of the cloaca and a cuticular transversal wrinkle which extends from the papilla elevation to the conical-cylindrical portion of the tail occupying both subventral regions. An emended diagnosis and a dichotomous key to species based on both genders are provided. 


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