Results 111 to 120 of about 47,008 (268)
Using abundance data to assess the relative role of sampling biases and evolutionary radiations in Upper Muschelkalk ammonoids [PDF]
, 2011 The Middle Triassic ammonoid genus Ceratites diversified spectacularly within the Germanic Muschelkalk Basin during the Anisian/Ladian (244–232 Mya). Previous studies have interpreted this diversification as a sequence of rapid, endemic radiations from a
Kiessling, Wolfgang +1 more
core +1 more source
A trematosauroid temnospondyl from the Middle Triassic of Jordan [PDF]
Fossil Record, 2011 A well-preserved mandible from the Lower Anisian Mukheiris Formation from near the Dead Sea (Jordan) proves the presence of tetrapods in the region. It is identified as a stereospondyl lower jaw sharing synapomorphies with the Trematosauroidea. It has the following combination of features: (1) Meckelian fenestra almost one-third the length of the ramus,
openaire +5 more sources
Journal of Anatomy, EarlyView.The Graphical Abstract ilustrates the different allometric pattern within different Pterosauria groups, highlighting how the allometry influences the flight and habits of Pterosauria. Abstract Pterosaurs were the first vertebrates to achieve powered flight, a result of various unique anatomical adaptations, and significant morphological diversity ...
Gabriela Menezes Cerqueira +6 more
wiley +1 more source
A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout
Journal of Anatomy, EarlyView.Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack +2 more
wiley +1 more source
Rivista Italiana di Paleontologia e Stratigrafia, 2014 A new species of Saurichthys, S. majiashanensis , is described. It comes from a series of marine vertebrate-bearing beds of the upper member of the Nanlinghu Formation outcropping in the large quarry at the top of Majiashan (Majia Hill) near Chaohu ...
ANDREA TINTORI +5 more
doaj +1 more source
Climate constrains the evolutionary history and biodiversity of crocodylians [PDF]
, 2015 The fossil record of crocodylians and their relatives (pseudosuchians) reveals a rich evolutionary history, prompting questions about causes of long-term decline to their present-day low biodiversity.
Benson, RBJ +5 more
core +2 more sources
Journal of Anatomy, EarlyView.Bone tissues of Triassic taxa reveal life history signals consistent with climatic variation across southern Pangea, spanning present‐day Brazil, Argentina, Zimbabwe, and India. Slower growth patterns within the Zimbabwean assemblage suggest a comparatively more arid intracontinental environment than those closer to the coast. Artwork by Andrey Atuchin.
Valerie Trinidad +6 more
wiley +1 more source
Frontiers in Earth ScienceThe closure of the Paleo-Tethys Ocean lead to the collisional amalgamation of the various blocks including South China, Indochina and North China blocks, which results in the formation of the Qinling and Ailaoshan orogenic belts.
Tianjia Liu +7 more
doaj +1 more source
Applied SciencesBased on drilling, core and seismic data, combined with the regional tectonic sedimentary evolution background, the sedimentary environment of the Triassic carbonate rocks in the Mangeshlak Basin was studied.
Fanyang Meng +4 more
doaj +1 more source
Revision of Some Anisian (Middle Triassic) Ammonoids
The Canadian field-naturalist, 1960 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources