|
|
|
|
|
| Pickerill, R.K.; Donovan, S.K.; Portell, R.W.. |
| The ichnotaxon Teredolites Leymerie, 1842, represented by T. longissimus Kelly & Bromley, 1984, is documented for the first time from the Lesser Antilles. Its occurrence also represents the first record of the ichnotaxon from the Miocene of the Caribbean. Five specimens, each occurring in isolation without an enclosing xylic (wood) substrate, but merely calcite-lined tubes, occur in the Miocene Grand Bay Formation of Carriacou, the Grenadines, Lesser Antilles. Stratinomic considerations suggest that following physical destruction or biological decomposition of their enclosing substrate(s), the tubes may have accumulated in relatively shallow water only to be subsequently resedimented into a deeperwater (> 150 m) environment. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Teredolites; Ichnology; Miocene; Lesser Antilles; Systematics; 42.71; 38.22. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/219214 |
| |
|
|
| López Cabrera,María I.; Olivero,Eduardo B.; Carmona,Noelia B.; Ponce,Juan J.. |
| The systematics, paleoenvironmental implications, and diversity of Cenozoic trace fossils from the Fuegian Andes are studied. The relatively complete Paleocene-Miocene stratigraphic column includes ichnoassemblages of the Cruziana (Leticia Formation, late Middle Eocene), Zoophycos and Nereites (Early Eocene-Early Miocene turbidite systems) ichnofacies. The last two ichnoasemblages contain the only known deep marine Cenozoic trace fossils in Argentina. The late Middle Eocene Leticia Formation represents a transgressive-regressive cycle and bears the ichnogenera Curvolithus, Diplocraterion, Gyrochorte, Rosselia, Patagonichnus, Asterosoma, Palaeophycus, Paradictyodora, Planolites, Rhizocorallium, Schaubcylindrichnus, Taenidium, and Teichichnus. Ichnogenera of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fuegian Andes; Cenozoic; Ichnology; Graphoglyptids; Turbidites. |
| Ano: 2008 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142008000200011 |
| |
|
| |
|
| |
|
|
| VASCONCELOS,ANDRÉ G.; BITTENCOURT,JONATHAS S.; AULER,AUGUSTO S.. |
| Abstract: We describe the first occurrence of biogenic traces made by mammals within an iron formation cave located in the Serra da Ferrugem Ridge, in Southeastern Brazil. These bioerosions are tooth traces produced in boulders, walls and floor within the cave. The traces occur as sets of two or more grooves, which are highly variable in size. The grooves were compared to tooth traces artificially produced by imprinting the incisors of different mammal species collected in the cave region on soft clay. Among those, the following taxa are potential tracemakers: Akodon sp., Oligoryzomys sp., Necromys lasiurus, Rhipidomys mastacalis, Oecomys gr. concolor, Trinomys moojeni, and Hydrochoerus hydrochaeris. The age of the traces is unknown; therefore, any... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioerosion; Geophagy; Gnawing traces; Rodents; Ichnology. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400511 |
| |
|
|
| Apesteguía,Sebastián; Gallina,Pablo A.. |
| Here we report a superbly preserved and profusely represented five-ichnotaxa dinosaur track assemblage near Icla village, 100 km southeast of Sucre, Bolivia. As preserved in reddish Jurassic-Cretaceous boundary aeolian sandstones, this rich and uncommon assemblage is, additionally, the oldest dinosaur tracksite for Bolivia. Four trackmakers were identified in the area: three quadrupedal and one bipedal, all of them with tracks of around 35 cm in lenght. One of the quadrupedals is represented by no less than five adult individuals (ichnotaxon A), and four purported juveniles (ichnotaxon B) walking in association. The other two quadrupedals (ichnotaxa C and D) involve four trackways, and the last, the bipedal trackmaker (ichnotaxon E), is represented by one... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bolivia; Chuquisaca; Dinosaur prints; Ichnology. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000100015 |
| |
|
|
|
