Results 41 to 50 of about 15,420 (250)
Occurrence and recoverability of tight oil in Paleogene Funing Formation, Subei Basin
Shiyou shiyan dizhi, 2020 The shale, interlayers and adjacent carbonate rocks and siltstones in the second and fourth members of the Paleogene Funing Formation in the Subei Basin were studied using multi-temperature pyrolysis and NMR.
Jinning PENG +6 more
doaj +1 more source
Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece
The Anatomical Record, EarlyView.The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou +3 more
wiley +1 more source
Shiyou shiyan dizhi, 2023 With the continuous improvement of exploration degree, the main object for oil and gas exploration in the Bonan Subsag of Bohai Bay Basin gradually changes from medium and shallow layers to medium and deep layers.
Yongshi WANG, Shun ZHANG
doaj +1 more source
Paleogene origin of planktivory in the Batoidea [PDF]
Journal of Vertebrate Paleontology, 2017 The planktivorous mobulid rays are a sister group to, and descended from, rhinopterid and myliobatid rays which possess a dentition showing adaptations consistent with a specialized durophageous diet. Within the Paleocene and Eocene there are several taxa which display dentitions apparently transitional between these extreme trophic modality, in ...
Underwood, Charlie J. +2 more
openaire +1 more source
The Anatomical Record, EarlyView.Abstract Softshell turtles (Pan‐Trionychidae) are an early branching clade of hidden‐necked turtles (Cryptodira) with a rich fossil record extending back to the Early Cretaceous. The evolutionary history of softshell turtles is still unresolved because of their conservative morphology combined with high levels of polymorphism related to morphological ...
Léa C. Girard, Walter G. Joyce
wiley +1 more source
Osteohistology of two phorusrhacids reveals uninterrupted growth strategy
The Anatomical Record, EarlyView.Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer +2 more
wiley +1 more source
, 2016 The Contessa Valley and the Bottaccione Gorge located close to Gubbio (central Italy) include some of the most complete successions of Paleogene sediments known from the Tethyan realm.
Galbrun, Bruno +7 more
core +1 more source
The Paleogene Ophiolite Conundrum of the Iran-Iraq Border Region [PDF]
, 2020 New and compiled geochemical, isotopic and geochronological data allow us to propose a new explanation for Paleogene oceanicmagmatic rocks alongtheIran–Iraqborder.These rocks are represented byathick pile(>1000 m) ofpillow lavas and pelagic sediments and
Karsli, Orhan +7 more
core +1 more source
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 +2 more
wiley +1 more source
Biological Reviews, EarlyView.ABSTRACT Among the vertebrates, mammals are notable for the dominance of live birth and placental nutrition. The structural diversity of the mammalian placenta is remarkable, despite sharing a single common ancestor and conserved physiological functions.
Davis Laundon +5 more
wiley +1 more source