Results 61 to 70 of about 6,337 (221)

Oldest Cretaceous latimeriid elucidates cranial evolution in derived and extant coelacanths (Actinistia, Latimeriidae)

open access: yesPapers in Palaeontology, Volume 12, Issue 2, March/April 2026.
Abstract The fossil record of coelacanths (Actinistia) is diminished by several nominal gaps that obscure vital information pertaining to the clade's evolutionary history. Latimeriidae, the family that includes the extant coelacanth Latimeria, in addition to the Cenozoic, has an outstanding missing gap of 50 myr during the Mesozoic, with no records of ...
Jack L. Norton   +4 more
wiley   +1 more source

Human Coprolites as a Source for Paleomicrobiology

open access: yesMicrobiology Spectrum, 2016
The paleomicrobiology of coprolites, which are fossilized fecal materials, has already yielded data about various organisms, including micro-eukaryotes, bacteria, and archaea, thus expanding our comprehension of ancient human dietary habits, gut microbiota, and intestinal and systemic infections.
Appelt, Sandra   +2 more
openaire   +4 more sources

Divergent defense strategies and niche partitioning in Cretaceous micro‐beetles

open access: yesJournal of Systematics and Evolution, Volume 64, Issue 2, Page 354-362, March 2026.
We report a new clambid beetle from mid‐Cretaceous Kachin amber, Scutacalyptus kolibaci gen. et sp. nov., characterized by a flattened body and explanate margins. Alongside spiny and conglobating clambid forms, this diversity reflects niche partitioning and varied antipredator strategies in the Cretaceous forest floor.
Yan‑Da Li   +3 more
wiley   +1 more source

Presence of vertebrate coprolites from the Alagoas Basin, Lower Cretaceous [PDF]

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2010
Coprolites collected from sedimentary rocks of the Maceió Formation, Alagoas Basin are analyzed for the first time. The specimens consist of two complete coprolites of cylindrical morphology that are preserved in commonly fluidized medium- to coarse ...
Paulo Roberto de Figueiredo Souto   +1 more
doaj  

Evolutionary diversity of bile salts in reptiles and mammals, including analysis of ancient human and extinct giant ground sloth coprolites

open access: yesBMC Evolutionary Biology, 2010
Background Bile salts are the major end-metabolites of cholesterol and are also important in lipid and protein digestion and in influencing the intestinal microflora.
Hofmann Alan F   +3 more
doaj   +1 more source

Early Pleistocene hominins in europe: the sites of Barranco León and Fuente Nueva-3 (Orce, Spain) [PDF]

open access: yes, 2016
The Early Pleistocene (Late Villafranchian) sites of Orce, placed in the northeastern sector of the Guadix-Baza Basin (Granada, southeastern Spain), are key to the study of the first human settlements in the European subcontinent.
Espigares, María Patrocinio   +6 more
core  

Palaeoecology of Middle Devonian epizoans and their Paraspirifer hosts

open access: yesPalaeontology, Volume 69, Issue 2, 2026.
Abstract The Silica Shale brachiopod, Paraspirifer bownockeri, of Ohio and Michigan, USA, preserves a unique window into Middle Devonian communities, as individuals hosted numerous epibionts. Herein, we use qualitative and quantitative methods to test hypotheses regarding the palaeoecology of these brachiopod hosts and their epibionts.
Haley N. Vantoorenburg   +6 more
wiley   +1 more source

Enterobius vermicularis: ancient DNA from north and south American human coprolites

open access: yesMemorias do Instituto Oswaldo Cruz, 2003
A molecular paleoparasitological diagnostic approach was developed for Enterobius vermicularis. Ancient DNA was extracted from 27 coprolites from archaeological sites in Chile and USA.
Alena M Iñiguez   +4 more
doaj   +1 more source

Morphology and paleoecology of a hybodontiform with serrated teeth, Priohybodus arambourgi, from the Late Jurassic of northeastern Brazil

open access: yesThe Anatomical Record, Volume 309, Issue 1, Page 5-32, January 2026.
Abstract Hybodontiformes was a diverse, successful, and important group of shark‐like chondrichthyans known from a variety of ecosystems. Some representatives of the order had a wide palaeogeographic distribution, as is the case with Priohybodus arambourgi. With a multicuspidate crown, P. arambourgi was the first hybodontiform to develop fully serrated
Estevan Eltink   +5 more
wiley   +1 more source

Strongyloides ferreirai Rodrigues, Vicente & Gomes, 1985 (Nematoda, Rhabdiasoidea) in rodent coprolites (8.000-2.000 years BP), from archaeological sites from Piauí, Brazil Strongyloides ferreirai Rodrigues, Vicente & Gomes, 1985 (Nematoda, Rhabdiasoidea) em coprólitos de roedores (8.000-2.000 anos AP= Antes do Presente), de sítios arqueológicos do Piauí, Brasil

open access: yesMemorias do Instituto Oswaldo Cruz, 1989
Eggs and larvae of Strongyloides ferreirai Rodrigues, Vicente & Gomes, 1985 are identified in Kerodon rupestris (Wied.) coprolites dated from 8.000-2.000 years BP (Before Present), collected from archaeological sites from the northeast of Brazil.Ovos e ...
Adauto Araújo   +4 more
doaj   +1 more source

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