Palaeontology: Which Came First, the Pterosaur or the Egg?
نویسنده
چکیده
Pterosaur fossils are among the rarest and their eggs are even rarer. How then can we get an insight into the lifestyle of these flying reptiles? A wealth of new pterosaur fossils, including eggs, from China now provides exactly that.
منابع مشابه
Palaeontology Developmental growth patterns of the filter - feeder pterosaur , Pterodaustro guiñazui
Developmental growth patterns of the filter-feeder pterosaur, Pterodaustro guiñazui A. Chinsamy*, L. Codorniú and L. Chiappe Zoology Department, University of Cape Town, Private Bag, Rondebosch 7701, Republic of South Africa Becario CONICET, Departamento de Geologı́a, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700 San Luis, Argentina The Dinosaur Institute, Natural History Muse...
متن کاملPreservational bias controls the fossil record of pterosaurs.
Pterosaurs, a Mesozoic group of flying archosaurs, have become a focal point for debates pertaining to the impact of sampling biases on our reading of the fossil record, as well as the utility of sampling proxies in palaeodiversity reconstructions. The completeness of the pterosaur fossil specimens themselves potentially provides additional information that is not captured in existing sampling ...
متن کاملEggshell and Histology Provide Insight on the Life History of a Pterosaur with Two Functional Ovaries.
The counterpart of a previously described non-pterodactyloid pterosaur with an egg revealed the presence of a second egg inside the body cavity of this gravid female. It clearly shows that pterosaurs had two functional oviducts and demonstrates that the reduction of one oviduct was not a prerequisite for developing powered flight, at least in this group. Compositional analysis of one egg sugges...
متن کاملSexually Dimorphic Tridimensionally Preserved Pterosaurs and Their Eggs from China
BACKGROUND The pterosaur record is generally poor, with little information about their populations, and pterosaur eggs are even rarer, with only four isolated and flattened eggs found to date. RESULTS We report here a population of a new sexually dimorphic pterosaur species (Hamipterus tianshanensis gen. et sp. nov.), with five exceptionally well-preserved three-dimensional eggs, from the Ear...
متن کاملA specimen of Rhamphorhynchus with soft tissue preservation, stomach contents and a putative coprolite
Despite being known for nearly two centuries, new specimens of the derived non-pterodactyloid pterosaur Rhamphorhynchus continue to be discovered and reveal new information about their anatomy and palaeobiology. Here we describe a specimen held in the collections of the Royal Tyrrell Museum of Palaeontology, Alberta, Canada that shows both preservation and impressions of soft tissues, and also ...
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ورودعنوان ژورنال:
- Current Biology
دوره 24 شماره
صفحات -
تاریخ انتشار 2014