Results 61 to 70 of about 8,835 (265)
The Anatomical Record, EarlyView.Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli +6 more
wiley +1 more source
Bauxites : Feedbacks of System Earth at Greenhouse times
Geologia Croatica, 2016 The sedimentary record is an inexhaustible repository of information on global climates. The study of the documents of past climate changes may help to understand not only the causes and presumable effects of the current change, but also to reveal ...
Andrea Mindszenty
doaj +1 more source
Journal of Applied Sciences and Environmental Management, 2020 The Upper Cretaceous Deposits of the Anambra Basin has a part of its sedimentary rock deposited in the Auchi area of Edo State. Geologic field and Sedimentological studies carried out on twenty eight (28) selected samples from a section of a road–cut ...
O.A. Ilegieuno +2 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano +3 more
wiley +1 more source
Instruction manual for U.S. Geological Survey sediment observers
Open-File Report, 1997 1 U.S. Geological Survey Sediment Data 1 Fundamentals of Sediment Transport 3 The U.S. Geological Survey Sediment Observer's Duties 11 When to Sample 11 How to Sample 15 Communication with the U.S. Geological Survey 31 Safety 31 Summary 33 References 33 FIGURES 1. Diagram showing example of published U.S.
openaire +2 more sources
The Anatomical Record, EarlyView.Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro +7 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro +1 more
wiley +1 more source
Discovery of giant and conventional magnetofossils bookending Cretaceous Oceanic Anoxic Event 2
Communications Earth & EnvironmentConventional magnetofossils are the remains of magnetotactic bacteria and giant magnetofossils are the remains of iron biomineralizing organisms that have not yet been identified. We report the oldest robust conventional and giant magnetofossil records, ~
Courtney L. Wagner +9 more
doaj +1 more source
Geochemical Transactions, 2018 The distribution of trace metals in active stream sediments from the mineralized Lom Basin has been evaluated. Fifty-five bottom sediments were collected and the mineralogical composition of six pulverized samples determined by XRD. The fine fraction (
Mumbfu Ernestine Mimba +7 more
doaj +1 more source