Bite traces in a turtle carapace fragment from the middle Danian (Lower Paleocene) bryozoan limestone, Faxe, Denmark
نویسندگان
چکیده
منابع مشابه
A NEW SPECIES OF HETEROSTEGINA IN MIDDLE PALEOCENE FROM THE KHUZESTAN AREA (S.W. IRAN)
New evidence gained by the study of Foraminifera from Khuzestan province in southwest Iran reveals that the basal limit of the genus Heterostegina is not restricted to the Eocene epoch. By introducing a new species of this genus (H. rezvaninejadi), this study shows that the early appearance of this genus should be lowered down further still, at least, into the Middle Paleocene.
متن کاملThe endoskeletal origin of the turtle carapace
The turtle body plan, with its solid shell, deviates radically from those of other tetrapods. The dorsal part of the turtle shell, or the carapace, consists mainly of costal and neural bony plates, which are continuous with the underlying thoracic ribs and vertebrae, respectively. Because of their superficial position, the evolutionary origins of these costo-neural elements have long remained e...
متن کاملTurtle Carapace Anomalies: The Roles of Genetic Diversity and Environment
BACKGROUND Phenotypic anomalies are common in wild populations and multiple genetic, biotic and abiotic factors might contribute to their formation. Turtles are excellent models for the study of developmental instability because anomalies are easily detected in the form of malformations, additions, or reductions in the number of scutes or scales. METHODOLOGY/PRINCIPAL FINDINGS In this study, ...
متن کاملa new species of heterostegina in middle paleocene from the khuzestan area (s.w. iran)
new evidence gained by the study of foraminifera from khuzestan province in southwest iran reveals that the basal limit of the genus heterostegina is not restricted to the eocene epoch. by introducing a new species of this genus (h. rezvaninejadi), this study shows that the early appearance of this genus should be lowered down further still, at least, into the middle paleocene.
متن کاملMenispermaceae from the Cerrejon Formation, middle to late Paleocene, Colombia.
The origin and processes creating the high diversity of plant species in neotropical rain forests and their floristic composition and multistratitified forest structure are still uncertain. Here, we studied one of the most common leaf morphotypes of the Cerrejón flora (middle-late Paleocene, ca. 60-58 Ma), Guajira, Colombia, that contains one of the oldest records of neotropical rain forest flo...
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ژورنال
عنوان ژورنال: Bulletin of the Geological Society of Denmark
سال: 2011
ISSN: 2245-7070
DOI: 10.37570/bgsd-2011-59-07