Consulta: subjectFacets:"Hatchlings"
Registros recuperados: 3
Data/hora: 06/06/2024 02:36:06

Cranial sexual discrimination in hatchling broad-snouted caiman (Caiman latirostris)
Provedor de dados: 76
Autores: Piña,Carlos; Larriera,Alejandro; Siroski,Pablo; Verdade,Luciano M.
Broad-snouted caiman (Caiman latirostris) hatchlings present a consistent sexual dimorphism in their cranium shape and size. Male hatchlings have smaller crania than females. Using multivariate statistical analyses it is possible to discriminate sex in broad-snouted caiman hatchlings by their cranial shape with a reasonable efficiency. The understanding of sexual dimorphism of crocodilian hatchlings might be possibly improved by experimental approach considering, genetic and phenotypic variables such as incubation temperature and clutch of origin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caiman latirostris; Crocodilians; Hatchlings; Morphometrics; Sexual dimorphism.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000100003

The "Tustea Puzzle": hadrosaurid (Dinosauria, Ornithopoda) hatchlings associated with Megaloolithidae eggs in the Maastrichtian of the Hateg Basin (Romania)
Provedor de dados: 41
Autores: Grigorescu,Dan.
Since 1991 when the coinciding occurrence of megaloolithid eggs and hatchlings of the hadrosaurid Telmatosaurus transsylvanicus was suggested by few limb bone remains found close to the first discovered eggs in the Hateg Basin, tens of eggs grouped in clutches together with neonate bones were unearthed within the place that become "Tustea nesting site". In the meantime the original vertical escarpment near the village of Tustea was leveled and converted into a horizontal platform. By their external characters and eggshell microstructure all the eggs belong to the Megaloolithus oogenus, closer to M. siruguei; similarly, all the baby remains whose state of preservation allows their taxonomic assignment belong to Telmatosaurus transsylvanicus, one of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dinosaur eggs; Megaloolithidae; Hatchlings; Hadrosaurids; Telmatosaurus; Maastrichtian; Hateg Basin; Romania.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142010000100006

Observations on the thermal selection of the pantanal caiman (Caiman crocodilus yacare) hatchlings (Crocodylia: Alligatoridae)
Provedor de dados: 57
Autores: PINHEIRO,M. S.; ANDREOTTI E SILVA,R.; SANTOS,S. A.
Three options of water temperatures in a thermal gradient that changed from 22 to 35°C were offered to Pantanal caiman (Caiman croocodilus yacare) hatchlings. Animals from two nests were submitted to temperatures during 19 days (Nest 1 - 20 caimans caught in the nature hours after hatching), corresponding to 1 to 7 observations periods, and 13 days (Nest 2 - 20 animals obtained by artificial incubation) relative to observation period 8. Caimans remain fasting during experimental period. Hatchlings were allocated in a enclosure containing three styrofoam boxes (120 L) disposed side by side enclosed by wire netting and filled with water to the top. Thus, the animals were free to access the boxes, which temperatures were changed at the end of each observation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caiman; Hatchlings; Pantanal; Thermal selection; Water temperature.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000200016