Results 41 to 50 of about 5,829 (169)

The evolutionary history of polycotylid plesiosaurians [PDF]

Royal Society Open Science, 2018
Polycotylidae is a clade of plesiosaurians that appeared during the Early Cretaceous and became speciose and abundant early in the Late Cretaceous. However, this radiation is poorly understood.
V. Fischer, R. B. J. Benson, P. S. Druckenmiller, H. F. Ketchum, N. Bardet   +4 more
doaj   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

The Turonian stage and substage boundaries

, 2016
Formal definitions of the Cenomanian-Turonian and lower-middle Turonian boundaries are proposed, following discussions at the Second International Symposium on Cretaceous Stage Boundaries, held in Brussels, 8-16 September 1995. The Global boundary Stratotype Section and Point (GSSP, "golden spike") for the Cenomanian-Turonian boundary should be placed ...
Bengtson, P, Cobban, W, Dodsworth, P, Gale, A, Kennedy, W, Lamolda, M, Matsumoto, T, Reyment, R, Seibertz, E, Tröger, K   +9 more
openaire   +2 more sources

(Table S2) Geochemistry Cenomanian-Turonian sediments from DSDP Hole 14-144

, 2012
(Table S2) Geochemistry Cenomanian-Turonian sediments from DSDP Hole 14 ...
Wolfgang Kuhnt (5689733), Owens, Jeremy D, Marcel MM Kuypers (6959567), Severmann, Silke, Kuypers, Marcel MM, Ariel D Anbar (6962261), Gwenyth Gordon (6976232), Kuhnt, Wolfgang, Silke Severmann (1660528), Jeremy D Owens (6976226), Li, Xiaona N, MacLeod, Kenneth G, Lyons, Timothy W, Gordon, Gwenyth, Timothy W Lyons (6962891), Xiaona N Li (6976229), Kenneth G MacLeod (6961271), Anbar, Ariel D   +17 more
core   +1 more source

Seismic Sequence Stratigraphy Applied to Reservoir Recognition and Evolution on Marine Carbonatic Ramp—Macaé Group (Albian to Cenomanian) of Campos Basin

Geological Journal, EarlyView.
A classic oil producing interval of the Campos Basin—Macaé Group is revisited through seismic stratigraphic analysis, providing a stratigraphic framework, characteristic depositional and relative time positioning for several complex structural settings.
Renata Alvarenga, Juliano Kuchle, Francyne Amarante, Garibaldi Armelenti, Claiton Marlon dos Santos Scherer, Luiz Fernando De Ros, Bruno de Souza Silva, Igor Marzano, Márcia Karam, Candy Shirley Rosa Contreras, João Claudio Conceição, José Luis Drummond Alves, Luiz Landau   +12 more
wiley   +1 more source

(Table S1) Geochemistry Cenomanian-Turonian sediments from DSDP Hole 11-105

, 2012
(Table S1) Geochemistry Cenomanian-Turonian sediments from DSDP Hole 11 ...
Wolfgang Kuhnt (5689733), Owens, Jeremy D, Marcel MM Kuypers (6959567), Severmann, Silke, Kuypers, Marcel MM, Ariel D Anbar (6962261), Gwenyth Gordon (6976232), Kuhnt, Wolfgang, Silke Severmann (1660528), Jeremy D Owens (6976226), Li, Xiaona N, MacLeod, Kenneth G, Lyons, Timothy W, Gordon, Gwenyth, Timothy W Lyons (6962891), Xiaona N Li (6976229), Kenneth G MacLeod (6961271), Anbar, Ariel D   +17 more
core   +1 more source

Calcareous Nannofossils Biostratigraphy of Gulneri Formation in Sulaimaniya, Northestern Iraq

Iraqi Geological Journal, 2023
Investigations on the calcareous nannofossils of the Gulneri Formation are being done in the northern Iraqi of Dokan and Pushen areas, Sulimani, Northern Iraq.
Seham Al-Salmani, Omar Al-Badrani
doaj   +1 more source

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

Integrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu, Qian‐Nan Zhang, Dang‐Peng Xi   +2 more
wiley   +1 more source

(Table S7) Geochemistry of Cenomanian-Turonian sediments from section Tarfaya S75

, 2012
(Table S7) Geochemistry of Cenomanian-Turonian sediments from section Tarfaya ...
Wolfgang Kuhnt (5689733), Owens, Jeremy D, Marcel MM Kuypers (6959567), Severmann, Silke, Kuypers, Marcel MM, Ariel D Anbar (6962261), Gwenyth Gordon (6976232), Kuhnt, Wolfgang, Silke Severmann (1660528), Jeremy D Owens (6976226), Li, Xiaona N, MacLeod, Kenneth G, Lyons, Timothy W, Gordon, Gwenyth, Timothy W Lyons (6962891), Xiaona N Li (6976229), Kenneth G MacLeod (6961271), Anbar, Ariel D   +17 more
core   +1 more source

Procurement of Senonian Flint for Bladelets Production at the Early PPNB Site of Nahal Zahal in the Northern Negev Established for the First Time Using Chemical Composition Analysis

Archaeometry, EarlyView.
ABSTRACT The hypotheses of Senonian flint to be a prime source of prehistoric “chalcedony” flint artefacts from the Negev Desert (Israel) was not investigated in detail thus far. By combining trace‐element profiling with statistical interpretation, ten flint items from Nahal Zahal, an Early Pre‐Pottery Neolithic B site in the northern Negev, were ...
Meir Finkel, Michal Birkenfeld, Talia Abulafia, Keren Weiss‐Sarusi, Olga Berlin, Yoav Ben Dor   +5 more
wiley   +1 more source