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Pterodactylidae is a controversial group of pterosaurs. During the 2000s and 2010s, several competing definitions for the various Jurassic pterodactyloid groups were proposed. Pereda-Suberbiola et al. (2012) used Fabien Knoll's (2000) definition of the name Pterodactylidae. [ 1 ]
Egg-burying would have been beneficial to the early evolution of pterosaurs, as it allows for more weight-reducing adaptations, but this method of reproduction would also have put limits on the variety of environments pterosaurs could live in and may have disadvantaged them when they began to face ecological competition from birds.
Fredericksburg Group stratigraphic column in Texas The Fredericksburg Group is a geologic group in Texas , United States. It preserves fossils dating back to the Cretaceous period .
Pterodactyloidea (/ˌtɛrəˈdækt͡ɬɔɪdɪːə/; derived from the Greek words πτερόν (pterón, for usual ptéryx) "wing", and δάκτυλος (dáktylos) "finger") [1] is one of the two traditional suborders of pterosaurs ("wing lizards"), and contains the most derived members of this group of flying reptiles.
In 2004 a Pterodaustro embryo in an egg was reported, specimen MHIN-UNSL-GEO-V246. The egg was elongated, 6 centimeters (2.4 in) long and 22 millimeters (0.87 in) across, and its mainly flexible shell was covered with a thin layer of calcite, 0.3 millimeters thick. [16] Three-dimensionally preserved eggs were reported in 2014. [17]
Propterodactylus (meaning "before Pterodactylus") is an extinct genus of transitional monofenestratan pterosaurs from the Late Jurassic Painten Formation of Germany. The genus contains a single species, P. frankerlae, known from a complete articulated skeleton.
Pterodactylus (from Ancient Greek: πτεροδάκτυλος, romanized: pterodáktylos ' winged finger ' [2]) is a genus of extinct pterosaurs.It is thought to contain only a single species, Pterodactylus antiquus, which was the first pterosaur to be named and identified as a flying reptile and one of the first prehistoric reptiles to ever be discovered.
This list of pterosaurs is a comprehensive listing of all genera that have ever been included in the order Pterosauria, excluding purely vernacular terms.The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomen dubium), or were not formally published (nomen nudum), as well as junior synonyms of more established names, and genera that are ...