scholarly journals New record of Prozostrodon brasiliensis (Eucynodontia: Prozostrodontia) from its type-locality (Upper Triassic, Southern Brazil): comments on the endocranial morphology

2020 ◽  
Vol 23 (4) ◽  
pp. 259-269
Author(s):  
Leonardo Kerber ◽  
Agustín G. Martinelli ◽  
Pablo Gusmão Rodrigues ◽  
Ana Maria Ribeiro ◽  
Cesar Leandro Schultz ◽  
...  
Keyword(s):  
New Record ◽  
Upper Triassic ◽  
Type Locality ◽  
Southern Brazil

The nasal cavity of two traversodontid cynodonts (Eucynodontia, Gomphodontia) from the Upper Triassic of Brazil

2021 ◽  
pp. 1-16
Author(s):  
Arymathéia Santos Franco ◽  
Rodrigo Temp Müller ◽  
Agustín G. Martinelli ◽  
Carolina A. Hoffmann ◽  
Leonardo Kerber
Keyword(s):  
Nasal Cavity ◽  
Fossil Record ◽  
Nasal Septum ◽  
Internal Surface ◽  
Nasolacrimal Duct ◽  
Upper Triassic ◽  
Late Triassic ◽  
Southern Brazil ◽  
Dorsal Region ◽  
Left And Right

Abstract Traversodontidae is a group of Triassic herbivorous/omnivorous cynodonts that represents the most diversified lineage within Cynognathia. In southern Brazil, a rich fossil record of late Middle/mid-Late Triassic cynodonts has been documented, with Exaeretodon riograndensis Abdala, Barberena, and Dornelles, 2002 and Siriusgnathus niemeyerorum Pavanatto et al., 2018 representing two abundant and well-documented traversodontids. The present study provides a comparative analysis of the morphology of the nasal cavity, nasal recesses, nasolacrimal duct, and maxillary canals of both species using computed tomography, highlighting the changes that occurred in parallel to the origin of mammaliaforms. Our results show that there were no ossified turbinals or a cribriform plate delimiting the posterior end of the nasal cavity, suggesting these structures were probably cartilaginous as in nonmammaliaform cynodonts. Both species show lateral ridges on the internal surface of the roof of the nasal cavity, but the median ridge for the attachment of a nasal septum is absent. Exaeretodon riograndensis and S. niemeyerorum show recesses on the dorsal region of the nasal cavity, which increase the volume of the nasal cavity, potentially enhancing the olfactory chamber and contributing to the sense of smell. On the lateral sides of the nasal cavity, the analyzed taxa show a well-developed maxillary recess. Although E. riograndensis and S. niemeyerorum have roughly similar nasal cavities, in the former taxon, the space between the left and right dorsal recesses of the nasal cavity is uniform along its entire extension, whereas this space narrows posteriorly in S. niemeyerorum. Finally, the nasolacrimal duct of S. niemeyerorum is more inclined anteroposteriorly than in E. riograndensis.

scholarly journals RANGE EXTENSION OF Sibon ayerbeorum VERA-PÉREZ, 2019 (SERPENTES: DIPSADIDAE) IN COLOMBIA

2021 ◽  
Vol 4 (1) ◽  
pp. 221
Author(s):  
Jonard David Echevarría Rentería ◽  
Guido Medina-Rangel
Keyword(s):  
New Record ◽  
Distribution Range ◽  
Range Extension ◽  
Type Locality ◽  
Natural Park ◽  
Distributional Range ◽  
Straight Line ◽  
North Western

Ayerbe’s snail-eater Sibon ayerbeorum is a nocturnal, tree-dwelling snake which was recently described based on four specimens collected in the proximity of Munchique National Natural Park, department of Cauca, Colombia, above 1000 m altitude. We here expand the distribution range of S. ayerbeorum into the department of Chocó, Colombia. The new record extends the distributional range of the Ayerbe’s snail-eater by nearly 288 km in a straight-line north-western ward from its type locality and is more than 1000 m below it.

A new Upper Triassic cynodont-bearing fossiliferous site from southern Brazil, with taphonomic remarks and description of a new traversodontid taxon

2018 ◽  
Vol 88 ◽  
pp. 179-196 ◽  
Author(s):  
Ane Elise Branco Pavanatto ◽  
Flávio Augusto Pretto ◽  
Leonardo Kerber ◽  
Rodrigo Temp Müller ◽  
Átila Augusto Stock Da-Rosa ◽  
...  
Keyword(s):  
Upper Triassic ◽  
Southern Brazil

A new species of Placospongia Gray, 1867 (Porifera, Demospongiae, Placospongiidae) and new record of P. ruetzleri van Soest, 2017 from Northeast, Brazil

Zootaxa ◽  
2021 ◽  
Vol 5072 (1) ◽  
pp. 12-22
Author(s):  
ROSA MÁCOLA ◽  
CARLA MENEGOLA
Keyword(s):  
New Species ◽  
New Record ◽  
Identification Key ◽  
Type Locality ◽  
Shallow Waters ◽  
Northeast Brazil ◽  
Western Atlantic ◽  
First Time ◽  
A New Species

A new species of Placospongia is described from Bahia State, Brazil. Placospongia giseleae sp. nov.. The specimen is found on the underside of rocks in shallow waters (0-20m), and is unique by having a spiculation consisting of two tylostyle categories, selenasters and acanthomicrorhabds. In addition, Placospongia ruetzleri, is recorded for the first time to Bahia state, 2.974 km southwards from its type locality, the Guyana shelf. The diversity of Placospongia species is raised from two to four taxa. An identification key for Western Atlantic Placospongia species is presented.  

A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain

Zootaxa ◽  
2012 ◽  
Vol 3192 (1) ◽  
pp. 49
Author(s):  
JULIE H. BAILEY-BROCK ◽  
WAGNER F. MAGALHÃES
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Record ◽  
Type Species ◽  
Hawaiian Islands ◽  
Type Specimen ◽  
First Record ◽  
Type Locality ◽  
A New Species

A new species of the serpulid genus Metavermilia Bush, 1905 and a new record of the genus Omphalopomopsis Saint-Joseph, 1894 are described from deep-sea lava rocks collected from 2,013 m at Cross Seamount, southwest of the Hawaiiarchipelago. Metavermilia zibrowii sp. nov., differs from its congeners mostly by the presence of a simple and concaveoperculum, extent of the thoracic membrane and tube morphology. Omphalopomopsis langerhansii (Marenzeller, 1885)is the type species of the genus and it is only known through its type specimen. This species is characterized by a simpleoperculum with a shallow convex calcareous endplate, cylindrical peduncle, presence of Apomatus chaetae and high num-ber of teeth in the thoracic uncini. This is the first record of this species outside the type locality and both genera are newly recorded for the Hawaiian Islands.

A new record of Lestodon armatus Gervais 1855 (Xenarthra, Mylodontidae) from the Quaternary of southern Brazil and remarks on its postcranial anatomy

2019 ◽  
pp. 1-17
Author(s):  
Dilson Vargas-Peixoto ◽  
Cícero Schneider Colusso ◽  
Átila Augusto Stock Da-Rosa ◽  
Leonardo Kerber
Keyword(s):  
New Record ◽  
Southern Brazil ◽  
Postcranial Anatomy

scholarly journals New record and distribution extension of Phalloceros spiloura Lucinda, 2008 (Cyprinodontiformes: Poeciliidae)

Check List ◽  
2013 ◽  
Vol 9 (6) ◽  
pp. 1545 ◽  
Author(s):  
Karine Orlandi Bonato ◽  
Juliano Ferrer
Keyword(s):  
Geographic Distribution ◽  
New Record ◽  
Rio Grande ◽  
River Basins ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Santa Catarina

Phalloceros spiloura Lucinda, 2008 is known from the coastal drainages of Rio Grande do Sul and Santa Catarina States, Iguaçu and Uruguai river basins. Its geographic distribution is herein extended to a new basin, the Laguna dos Patos system, an isolated costal drainage from Southern Brazil.

New Dinosauriform (Ornithodira, Dinosauromorpha) Record from the Upper Triassic of Southern Brazil

2014 ◽  
Vol 18 (2) ◽  
pp. 118-121 ◽  
Author(s):  
Rodrigo Temp Müller ◽  
Max Cardoso Langer ◽  
Alex Sandro Schiller Aires ◽  
Sérgio Dias-da-silva
Keyword(s):  
Upper Triassic ◽  
Southern Brazil

Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic

Zootaxa ◽  
2019 ◽  
Vol 4571 (4) ◽  
pp. 489
Author(s):  
JOÃO MIGUEL DE MATOS NOGUEIRA ◽  
WILLIAM M. G. RIBEIRO ◽  
ORLEMIR CARRERETTE ◽  
PAT HUTCHINGS
Keyword(s):  
New Record ◽  
First Record ◽  
Southeastern Brazil ◽  
Brazilian Coast ◽  
Nomen Nudum ◽  
Southwestern Atlantic ◽  
Southern Brazil ◽  
Ecological Studies ◽  
Unpublished Thesis ◽  
A New Species

Two of the species of Pectinariidae previously reported from the Brazilian coast are herein described, together with a new species and also new record for the genus Petta Malmgren, 1866 for the southern Atlantic. Amphictene catharinensis (Grube, 1870) was described from material from off Santa Catarina, southern Brazil, but the most recent description for these animals comes from Nilsson (1928); a redescription for A. catharinensis is herein provided. Pectinaria nonatoi n. sp. was informally described as P. (Pectinaria) laelia nomen nudum in an unpublished thesis and a formal description has never been provided, although the species has been reported from several other localities off the Brazilian shoreline, mostly in ecological studies; the species is formally described herein and compared to the most similar congeners. Petta alissoni n. sp. is also described and compared to the most similar congeners and this is the first record for animals of this genus from southern Atlantic. There are also records for Pectinaria gouldii (Verrill, 1874) and P. regalis Verrill, 1901 from off the Brazilian coast, and a doubtful record for Lagis pseudokoreni (Day, 1955), but we did not find any material belonging to those taxa. 

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