Results 61 to 70 of about 8,490 (221)
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley +1 more source
An assemblage of unusual microfossils occurs within an accumulation of plant debris, hyphae, and various types of propagules in the Early Devonian Rhynie chert.
Kustatscher Evelyn +3 more
doaj +1 more source
The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi +4 more
wiley +1 more source
The Oral Microbiome of King Richard III of England
ABSTRACT Objectives Metagenomic investigations of ancient dental calculus provide insights into oral health, disease, and diet. Here, we analyze the dental calculus metagenome of King Richard III of England (1452–1485). Materials and Methods Dental calculus DNA was extracted from three teeth of King Richard III and shotgun sequenced to a depth of ...
Irina M. Velsko +15 more
wiley +1 more source
AI‐assisted identification of stromatoporoids
AI models integrating vertical and transverse thin‐section images accurately classify Silurian stromatoporoid taxa, achieving up to 97% accuracy. This dual‐orientation framework mirrors traditional taxonomy, reveals patterns of morphological continuity, and provides a scalable, quantitative approach for advancing automated fossil identification ...
David Rodríguez González +3 more
wiley +1 more source
How to Recover Microfossils from Common Iowa Rocks [PDF]
The rocks of Iowa contain a great abundance and variety of fossils. Megafossils, those fossils of sufficient size to be seen with the unaided eye, are abundant in many Iowa quarries and roadcuts and are therefore common in most fossil collections of Iowa
Anderson, Wayne I.
core +1 more source
These findings confirm that the Campanian‐aged Bozbent Member turbiditic sequence in the Eastern Pontides was deposited in an extensional fore‐arc basin and therefore exhibits the petrographic and geochemical characteristics of passive margin sandstones.
Çiğdem Saydam Eker +6 more
wiley +1 more source
Radiolarian micropalaeontology: examining radiolaria under the microscope
Professor Simon Haslett discusses examining radiolarian microfossils under the microscope. Radiolaria are marine single-celled organisms that possess a silica shell and are preserved in the fossil record.
Haslett, Prof. Simon K. +1 more
core
Image Databases for Pollen Grain Classification: Availability, Quality, and Challenges
Overview of the study process, from identifying gaps in pollen image databases to a systematic search across six libraries, resulting in 73 final studies, 18 datasets (10 public), and a seven‐point standardization framework proposed under FAIR principles.
Heloise Acco Tives Bedin +4 more
wiley +1 more source
Radiolarian micropalaeontology: extracting radiolaria from sediment
Professor Simon Haslett discusses extracting radiolarian microfossils from rocks and sediments. Radiolaria are marine single-celled organisms that possess a silica shell and are preserved in the fossil record.
Haslett, Prof. Simon K. +1 more
core

