Results 71 to 80 of about 2,327 (226)

Body size and evolutionary rate analyses reveal complex evolutionary history of Alvarezsauria

Cladistics, Volume 41, Issue 1, Page 135-155, February 2025.
Abstract Some of the smallest examples of dinosaurian body size are from alvarezsaurians, an enigmatic group of maniraptoran coelurosaurians with a peculiar combination of anatomical features unique among theropods. Despite the large number of alvarezsaurian species described worldwide and the increased understanding this has provided, the body‐size ...
Jorge Gustavo Meso, Diego Pol, Luis Chiappe, Zichuan Qin, Ignacio Díaz‐Martínez, Federico Gianechini, Sebastián Apesteguía, Peter J. Makovicky, Michael Pittman   +8 more
wiley   +1 more source

An Assessment of Red List Data for the Cycadales [PDF]

Tropical Conservation Science, 2015
We compiled Red List data from all listed cycad taxa to determine the current status of the world's most threatened plant group. Each Red List threat category had different proportions of genera, and the genera comprised different proportions of threat categories.
Paris N. Marler, Thomas E. Marler
openaire   +1 more source

Biodiversidad de Zamiaceae en México

Revista Mexicana de Biodiversidad, 2013
Dentro de los grupos actuales de espermatofitas, plantas con semilla, las cícadas cuentan con el registro fósil más antiguo. A pesar de ello, su estatus como “fósiles vivientes” ha sido puesto en entredicho recientemente con base en resultados de ...
Fernando Nicolalde-Morejon, Jorge González-Astorga, Francisco Vergara-Silva, Dennis W. Stevenson, Octavio Rojas-Soto, Anwar Medina-Villarreal   +5 more
doaj   +1 more source

A Time-Calibrated Species Tree Phylogeny of the New World Cycad Genus Zamia L. (Zamiaceae, Cycadales)

INTERNATIONAL JOURNAL PLANT SCIENCES, 2019
Premise of research. The genus Zamia L. (Zamiaceae), consisting of 79 species, is the most species-rich and widely distributed cycad genus in the New World and arguably the most morphologically and ecologically diverse genus in the Cycadales.
M. Calonje, A. Meerow, M. Griffith, Dayana E. Salas-Leiva, A. Vovides, Mario Coiro, J. Francisco‐Ortega   +6 more
semanticscholar   +1 more source

Biological Activity Investigation of Some Gymnosperm Plants Belong to Cycadales Order

Journal of Advanced Medical and Pharmaceutical Research, 2020
People are known to utilize plants for treatment of many diseases. Cycadales are one of these ancient plants that contained different active constituents. Due to the lack of adequate research on Cycadales, we conducted this study.
W. Negm, K. A. El-Seoud, A. Kabbash, Mona El-Aasr   +3 more
semanticscholar   +1 more source

Estudio palinológico de los sedimentos maastrichtienses del Barranco de la Posa (Prepirineo, Lérida, España) [PDF]

, 1985
El Maastrichtiense que se extiende entre Tremp y Coll de Nargó está representado por depósitos de carácter lagunar y salobre, con pequeños niveles marinos intercqlados .
Civis, J., Kedves, M., Porta, J. de, Solé de Porta, N.   +3 more
core  

The need for a socioecological harm reduction approach to reduce illegal wildlife trade

Conservation Biology, Volume 38, Issue 5, October 2024.
Abstract The burgeoning illegal trade in succulents in southern Africa presents a critical conservation and social development challenge. Drawing parallels with the trajectory of the response to rhinoceros poaching, we considered the consequences of conservation law enforcement measures, particularly the militarization of antipoaching efforts.
Annette Hübschle, Jared Margulies
wiley   +1 more source

LEAFLET ANATOMY OF ZAMIA DISODON D.W. STEV. & SABATO AND Z. RESTREPOI (D.W. STEV.) A. LINDSTR.

Caldasia, 2013
The genus Zamia is morphologically and ecologically the most diverse of theCycadales. Colombia is the country where most living species of Zamia have beenrecorded.
Acuña Castillo Rafael, Marín Méndez Walter   +1 more
doaj  

The non‐flowering plants of a near‐polar forest in East Gondwana, Tasmania, Australia, during the Early Eocene Climatic Optimum

American Journal of Botany, Volume 111, Issue 9, September 2024.
Abstract Premise The Cenozoic Macquarie Harbour Formation (MHF) hosts one of the oldest and southernmost post‐Cretaceous fossil plant assemblages in Australia. Coinciding with the Early Eocene Climatic Optimum (EECO) and predating the breakup of Australia from Antarctica, it offers critical data to study the diversity and extent of the Austral Polar ...
Miriam A. Slodownik
wiley   +1 more source

La colección de paleobotánica del Museo de Ciencias Naturales y Antropológicas "Juan Cornelio Moyano", Mendoza, Argentina. [PDF]

, 2014
La Colección de Paleontología del Museo de Ciencias Naturales y Antropológicas “Juan Cornelio Moyano” de Mendoza (Argentina) se formó originalmente con los ejemplares que colectó el naturalista Carlos Rusconi en la provincia de Mendoza y otras áreas del ...
Devincenzi, Susana Mariel
core