Enantiornithines
http://www.igeo.cgs.gov.cn/yjsjy/dsxx/ssyjsds/gswxydcxs/202404/t20240407_728407.html The Enantiornithes, also known as enantiornithines or enantiornitheans in literature, are a group of extinct avialans ("birds" in the broad sense), the most abundant and diverse group known from the Mesozoic era. Almost all retained teeth and clawed fingers on each wing, but otherwise looked much like … See more The first Enantiornithes to be discovered were incorrectly referred to modern bird groups. For example, the first known species of Enantiornithes, Gobipteryx minuta, was originally considered a paleognath See more Many fossils of Enantiornithes are very fragmentary, and some species are only known from a piece of a single bone. Almost all specimens that are complete, in full articulation, and with soft tissue preservation are known from Las Hoyas in Cuenca See more Incertae sedis Enantiornithes taxonomy is difficult to evaluate, and as a result few clades within the group are consistently found by phylogenetic … See more Enantiornithine-like birds found in Albian of Australia, Maastrichtian of South America, and Campanian of Mexico (Alexornis ), Mongolia and western edge of prehistoric Asia suggest a worldwide distribution of this group or in the relatively warm regions, at least. … See more Diet Given the wide diversity of skull shape among Enantiornithes, many different dietary … See more Some researchers classify Enantiornithes, along with the true birds, in the class Aves. Others use the more restrictive crown group definition of Aves (which only includes See more Media related to Enantiornithes at Wikimedia Commons See more
Enantiornithines
Did you know?
WebOct 24, 2024 · Although enantiornithines and ornithuromorphs superficially share many derived features relative to more basal non-ornithothoracine birds, these derived features seem to represent alternative solutions to … WebOct 11, 2024 · The new fossil displays most of its plumage including a pair of elongated, rachis-dominated tail feathers similarly present in a variety of other enantiornithines. BMNHC-PH-919 represents the first record of a …
WebMay 29, 2014 · Enantiornithines are the most diverse avian clade in the Cretaceous. However, morphological specializations indicative of specific ecological roles are not well known for this clade. Here we report on an exquisitely well-preserved specimen from the Lower Cretaceous Jehol Group of northeastern China, … WebJan 11, 2016 · Previously described pengornithid enantiornithines preserving integument possess a pair of fully pennaceous (vaned) rachis-dominated rectrices (Eopengornis STM24-11 and Parapengornis IVPP V18687), differing from the racket plumes commonly preserved in confuciusornithiforms and some enantiornithines (e.g., Dapingfangornis) …
WebSep 14, 2024 · The Enantiornithes (Walker, 1981) are the most diverse clade of Mesozoic birds, accounting for half of all Mesozoic avian diversity, and are considered to represent the first major avian radiation, preceding that of Neornithes during the Cenozoic Era. WebBy contrast, ecomorphological inferences indicate predominantly arboreal lifestyles among enantiornithines, the most diverse and widespread Mesozoic avialans [ 5 ; 6 ; 7 ]. Global paleobotanical and palynological data show that the K-Pg Chicxulub impact triggered widespread destruction of forests [ 8 ; 9 ].
WebApr 5, 2024 · Based on serial material from the Turonian of Dzharakuduk (central Kyzyl Kum, Uzbekistan), the morphology of coracoid of enantiornithines is described in detail. Variants of each morphological element are considered; this allows determination of the taxonomic position of enantiornithines even using small coracoid fragments.
WebThe atypical mode of sternal ossification in some derived enantiornithines should be regarded as an autapomorphic condition rather than an indication that enantiornithines are not close relatives of ornithuromorphs. Based on what is known about molecular mechanisms for morphogenesis and the possible selective advantages, the parallel shifts … restored castles for sale in italyWebApr 10, 2024 · Enantiornithines were diverse and widespread, and they existed in a variety of habitats, including forests, grasslands, and wetlands. However, they eventually went extinct at the end of the Cretaceous period. Another major event in bird evolution occurred during the Eocene epoch, approximately 56 to 33 million years ago. During this time, the ... proxyscrape proxies downloadhttp://www.globalauthorid.com/WebPortal/AuthorView?wd=GAID10945210&rc=T52WDJ restored colonial homesWebDec 8, 2000 · A fossil enantiornithine bird, Protopteryx fengningensis gen. et sp. nov., was collected from the Early Cretaceous Yixian Formation of Northern China. It provides … proxy scraper bot discord source codeWebSep 14, 2024 · It provides new evidence about the osteology of Late Cretaceous enantiornithines, which are mainly known from isolated bones; in contrast, Early … restored clonezilla says no bootable deviceWebSep 30, 2024 · Our µCT-scan data show that in the Brazilian enantiornithines analyzed in the present study, all replacement teeth preserved at very early stages resorbed the … restored coke fridgeWebNov 13, 2024 · Analysis of a newly described fossil, the most complete known from the Americas, demonstrates, too, that the enantiornithines were as agile and strong in flight … restored castles for sale