Results 71 to 80 of about 6,337 (221)

Mesozoic fossils (>145 Mya) suggest the antiquity of the subgenera of Daphniaand their coevolution with chaoborid predators [PDF]

open access: yes, 2011
Background The timescale of the origins of Daphnia O. F. Mueller (Crustacea: Cladocera) remains controversial. The origin of the two main subgenera has been associated with the breakup of the supercontinent Pangaea.
Alexey A Kotov, Derek J Taylor
core   +1 more source

Geoarchaeological Investigation of Early Neolithic Lagoonal Fringe Landscapes in the Netherlands

open access: yesGeoarchaeology, Volume 41, Issue 1, January/February 2026.
ABSTRACT Coastal wetlands have historically been portrayed as too marginal for early crop cultivation during the Mesolithic–Neolithic transition due to their dynamic hydrology, low elevation, and poor drainage. However, growing evidence suggests that these environments played a crucial role in the spread of agriculture. We examined buried and submerged
Elena Familetto   +5 more
wiley   +1 more source

Paleoparasitology and the antiquity of human host-parasite relationships

open access: yesMemorias do Instituto Oswaldo Cruz, 2000
Paleoparasitology may be developed as a new tool to parasite evolution studies. DNA sequences dated thousand years ago, recovered from archaeological material, means the possibility to study parasite-host relationship coevolution through time.
Adauto Araújo, Luiz Fernando Ferreira
doaj   +1 more source

Tafonomía multiservicio. valvas, basura y palimpsestos flotantes [PDF]

open access: yes, 2014
We discuss the importance of widening the scope of taphonomy, arguing that it is critical to study of different classes of materials within this framework. We introduce several examples related to the deposition of marine shells and garbage.
Borrero, Luis Alberto
core  

Minimally Destructive Radiocarbon Dating of Bone

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 9, 15 May 2026.
ABSTRACT Rationale Bone is commonly used in radiocarbon dating in archaeology and other disciplines. Despite advances in collagen extraction protocols, the process remains destructive, requiring sawing, drilling or crushing of bone material. While non‐destructive approaches have recently been applied in ancient genomics and palaeoproteomics, no ...
Tom Higham   +19 more
wiley   +1 more source

The finding of eggs of Diphyllobothrium in human coprolites (4.100-1.950 BC) from Northern Chile

open access: yesMemorias do Instituto Oswaldo Cruz, 1984
Twenty six coprolites from an archaeological site in the province of Iquique, northern Chile, were examined for parasites. Coprolites were found in two excavation units, I and II (Tiliviche site), dated respectively at 5,900 B.C. to 4,110 B.C.
Luiz Fernando Ferreira   +3 more
doaj   +1 more source

Palynological, tephra, and 14C records from southern Kaitoke, Great Barrier (Aotea) Island, New Zealand, since c. 30,000 cal. yr BP

open access: yesNew Zealand Journal of Botany, Volume 63, Issue 5, Page 1096-1114, December 2025.
ABSTRACT Here we present results of the last remaining three, unreported pollen and stratigraphic profiles from our previous investigations on Great Barrier Island from southern Kaitoke. The 14C and pollen data extend the island's previous maximum pollen‐vegetation date from c. 7000 cal. yr BP to close to the end of MIS 3 c. 30,000 cal. yr BP.
Mark Horrocks   +4 more
wiley   +1 more source

A short trackway of tridactyl fossil footprints discovered in the Kaipara region of the North Island of New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 816-830, December 2025.
ABSTRACT Fossil trackways record snapshots of the lives of ancient animals. A short trackway of unwebbed tridactyl footprints from the Kaipara region of the North Island of New Zealand contributes to the growing record of fossil footprints discovered in Aotearoa.
Daniel B. Thomas   +4 more
wiley   +1 more source

Parasite remains in archaeological sites

open access: yesMemorias do Instituto Oswaldo Cruz, 2003
Organic remains can be found in many different environments. They are the most significant source for paleoparasitological studies as well as for other paleoecological reconstruction.
Françoise Bouchet   +7 more
doaj   +1 more source

Conellae, enigmatic structures on cephalopod shells—shapes, distribution, and formation [PDF]

open access: yes, 2019
Conellae, enigmatic cone-shaped structures which can be found on the surface of internal moulds of cephalopod shells (predominantly of ammonoids), are regarded herein as the product of remote (biologically induced) biomineralization formed in closed-off ...
Hoffmann, René   +2 more
core   +1 more source

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