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Mycomorphoolithus
''Mycomorphoolithus'' (meaning "fungus-shaped stone egg") is an oogenus of fossil eggs found in Spain and England. They possibly represent eggshells of non-eusuchian Crocodylomorpha, crocodylomorphs, and are similar to, but not part of, the Krokolithidae.Miguel Moreno-Azanza, Jose Ignacio Canudo, and Jose Manuel Gasca. (2015) "Enigmatic Early Cretaceous ootaxa from Western Europe with signals of extrinsic eggshell degradation" ''Cretaceous Research'' 56: 617–627. Distribution ''M. kohringi'' is known from three formations in the Maestrazgo Basin in Spain: the El Castellar Formation, the Mirambel Formation, and the Blesa Formation, plus La Huergina and El Collado Formations in Spain, all of which are Barremian age. Also, eggshell fragments referred to ''Mycomorphoolithus'' sp. are known from the Purbeck Group in England, which is dated to the Berriasian. History ''Mycomorphoolithus'' were first discovered (though not yet named) in 1990 in paleontology, 1990 by German paleontologi ...
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Egg Fossils
Egg fossils are the fossilized remains of eggs laid by Geologic time, ancient animals. As evidence of the Physiology, physiological processes of an animal, egg fossils are considered a type of trace fossil. Under rare circumstances a fossil egg may preserve the remains of the once-Ontogeny, developing embryo inside, in which case it also contains Fossil, body fossils. A wide variety of different animal groups laid eggs that are now preserved in the fossil record beginning in the Paleozoic. Examples include invertebrates like Cephalopod egg fossil, ammonoids as well as vertebrates like Fish egg fossil, fishes, possible amphibians, and Reptile egg fossil, reptiles. The latter group includes the many dinosaur eggs that have been recovered from Mesozoic Stratum, strata. Since the organism responsible for laying any given egg fossil is frequently unknown, scientists classify eggs using a parallel system of taxonomy separate from but modeled after the Linnaean taxonomy, Linnaean system. T ...
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Oogenus
Egg fossils are the fossilized remains of eggs laid by ancient animals. As evidence of the physiological processes of an animal, egg fossils are considered a type of trace fossil. Under rare circumstances a fossil egg may preserve the remains of the once- developing embryo inside, in which case it also contains body fossils. A wide variety of different animal groups laid eggs that are now preserved in the fossil record beginning in the Paleozoic. Examples include invertebrates like ammonoids as well as vertebrates like fishes, possible amphibians, and reptiles. The latter group includes the many dinosaur eggs that have been recovered from Mesozoic strata. Since the organism responsible for laying any given egg fossil is frequently unknown, scientists classify eggs using a parallel system of taxonomy separate from but modeled after the Linnaean system. This " parataxonomy" is called ''veterovata''. History The first named oospecies was '' Oolithes bathonicae'', a name gi ...
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Krokolithidae
Krokolithidae is an oofamily of fossil crocodylomorph eggs. The oogenus ''Mycomorphoolithus ''Mycomorphoolithus'' (meaning "fungus-shaped stone egg") is an oogenus of fossil eggs found in Spain and England. They possibly represent eggshells of non-eusuchian Crocodylomorpha, crocodylomorphs, and are similar to, but not part of, the Krokol ...'' is closely related to the family, but not included in it. References Prehistoric crocodylomorphs Reptile trace fossils Egg fossils {{eggshell-stub ...
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Purbeck Group
The Purbeck Group is an Upper Jurassic to Lower Cretaceous lithostratigraphy, lithostratigraphic group (stratigraphy), group (a sequence of rock strata) in south-east England. The name is derived from the district known as the Isle of Purbeck in Dorset where the stratum, strata are exposed in the cliffs west of Swanage. The Purbeck Group is famous for its fossils of reptiles and early mammals. This sequence of rocks has gone by various names in the past including amongst others the Purbeck Beds, Purbeck Formation, Purbeck Limestone Formation and Purbeck Stone. Rocks of this age have in the past been called the Purbeckian stage (stratigraphy), stage by European geologists. The Purbeckian corresponds with the Tithonian to Berriasian stages of the internationally used geologic timescale. History and stratigraphy The stratigraphic organisation of the Purbeck Group has varied significantly over time since it was first labelled in 1816 for a section of limestone on the Isle of Purbeck ...
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Berriasian
In the geological timescale, the Berriasian is an age/ stage of the Early/Lower Cretaceous. It is the oldest subdivision in the entire Cretaceous. It has been taken to span the time between 143.1 ±0.6 Ma and 137.05 ± 0.2 (million years ago). The Berriasian succeeds the Tithonian (part of the Jurassic) and precedes the Valanginian. Stratigraphic definition The Berriasian Stage was introduced in scientific literature by Henri Coquand in 1869. It is named after the village of Berrias in the Ardèche department of France. The largely non-marine English Purbeck Formation is in part of Berriasian age. The first rocks to be described of this age were the beds of the English Purbeck Formation, named as the Purbeckian by Alexandre Brongniart in 1829 following description by Henry De la Beche, William Buckland, Thomas Webster and William Henry Fitton. The base of the Berriasian, which is also the base of the Cretaceous System, has traditionally been placed at the first appea ...
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Faveoloolithidae
Faveoloolithidae is an oofamily of dinosaur eggs. It contains '' Faveoloolithus'', '' Hemifaveoloolithus'', '' Parafaveoloolithus'', and probably '' Sphaerovum''. However, unlike the other Faveoloolthids, ''Sphaerovum'' has compactituberculate ornamentation more similar to megaloolithids. Like Dictyoolithidae, the membrane and the calcareous part of the eggshell formed simultaneously instead of forming the membrane before the calcareous like modern bird Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...s.Z.-K. Zhao. (1994) "Dinosaur eggs in China:On the structure and evolution of eggshells." In K. Carpenter, K. F. Hirsch, and J. R. Horner (eds.), ''Dinosaur Eggs and Babies,'' Cambridge University Press, Cambridge. Cambridge. pp. 184–203. See also * List of dinosaur oogener ...
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Fossils Of Spain
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Though the fossil record is incomplete, numerous studies have demonstrated that there is enough information available to give a good understanding of the pattern of diversification of life on Earth. In addition, the record can predict and fill gaps such as the discovery of '' Tiktaalik'' in the arctic of Canada. Paleontology includes the study of fossils: their age, method of formation, and evolutionary significance. Specimens are sometimes considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years to 4.1 billion years old. Early edition, published online before print. The ...
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Crocodylian
Crocodilia () is an order of semiaquatic, predatory reptiles that are known as crocodilians. They first appeared during the Late Cretaceous and are the closest living relatives of birds. Crocodilians are a type of crocodylomorph pseudosuchian, a subset of archosaurs that appeared about 235 million years ago and were the only survivors of the Triassic–Jurassic extinction event. While other crocodylomorph groups further survived the Cretaceous–Paleogene extinction event, notably sebecosuchians, only the crocodilians have survived into the Quaternary. The order includes the true crocodiles (family Crocodylidae), the alligators and caimans (family Alligatoridae), and the gharial and false gharial (family Gavialidae). Although the term "crocodiles" is sometimes used to refer to all of these families, the term "crocodilians" is less ambiguous. Extant crocodilians have flat heads with long snouts and tails that are compressed on the sides, with their eyes, ears, and nostril ...
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Bernissartia BW
''Bernissartia'' ('of Bernissart') is an extinct genus of neosuchian crocodyliform that lived in the Early Cretaceous, around 130 million years ago. At only in length, ''Bernissartia'' is one of the smallest crocodyliforms that ever lived. It resembled modern species in many respects, and was probably semi-aquatic. It had long, pointed teeth at the front of the jaws that would have been of use in catching fish, but broad and flat teeth at the back of its jaws that were suited for crushing hard food, such as shellfish, and possibly bones. It is known primarily from skulls and skeletons found in the Sainte-Barbe Clays Formation of Belgium and the Camarillas Formation of Spain. Less complete material has been referred to ''Bernissartia'' from the United Kingdom and North America. See also * ''Koumpiodontosuchus aprosdokiti'' * Smallest organisms References

{{Taxonbar, from=Q3234485 Neosuchia Early Cretaceous crocodylomorphs of Europe Cretaceous England Fossils of G ...
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Krokolithes
''Krokolithes'' is an oogenus of Crocodiloid eggs. These eggs were laid by an extinct species of Crocodylian. It contains three oospecies: ''K. dinophilus'', ''K. wilsoni'' and ''K. helleri''. 1 Fossils of the oogenus have been found in the Oligocene of France, the Oldman and Dinosaur Park Formations of Alberta, Canada, the Campanian Two Medicine Formation of Montana, the Barremian Cabezo Gordo Member of the Blesa Formation of Spain, and the Kimmeridgian of the Lourinhã Formation The Lourinhã Formation () is a fossil-rich geological formation in western Portugal, named for the municipality of Lourinhã. The formation is mostly Late Jurassic in age (Kimmeridgian/Tithonian), with the top of the formation extending into the ... of Portugal. References Egg fossils Tithonian life Barremian life Campanian life Maastrichtian life Oligocene life Fossils of France Fossils of Portugal Fossils of Spain Paleontology in Alberta Paleontology in Montana Fossil paratax ...
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Bauruoolithus
''Bauruoolithus'' is an oogenus of fossilized eggs belonging to an extinct crocodyliform from the Late Cretaceous ( late Campanian- early Maastrichtian) of Brazil. ''Bauruoolithus'' eggs were most likely laid by the notosuchian crocodyliform '' Baurusuchus''. Eggs of ''Bauruoolithus'' were described in 2011 from the Adamantina Formation. The type oospecies is ''B. fragilis''. Description ''Bauroolithus'' eggs are elongated, with a width measuring about half that of its height. The ends of the egg are blunt. At 0.15 to 0.25 millimeters in thickness, the shell is thin and somewhat wavy. The eggshell is divided into wedge-shaped shell units, which are pieces of calcareous Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime (mineral), lime or being chalky. The term is used in a wide variety of Science, scientific disciplines. In zoology ''Calcare ... aggregate. The surface of the shell is covered in small t ...
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