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Paleontological sheets : dinosaurs and other prehistoric animals.

247 Fiches Dinosaures et autres animaux préhistoriques
Images et textes tirés de différents sites dont Earth Archives et Monsters of the past

Des fiches sur des animaux disparus incluant image, texte informatif,
l'âge de l'animal et la période (selon l'International Chronostratigraphic Chart - 2016) pendant laquelle il a vécu
et quelques éléments de la classification phylogénétique.
Recherchez une fiche particulière à partir de sa 1ère lettre ci-dessous.
D'autres fiches vont suivre.
Les fiches sont en anglais, désolé.

Fiches commençant par A B C D E F G H I J K L M N O P Q R S T U V W X Z

ou Retour à l'index avec la classification

27 fiches dont le nom commence par la lettre M

Cliquez sur les miniatures pour voir les images en taille réelle, puis cliquez n'importe où pour revenir ici.

PhylumClassOrderFamily
ChordataReptiliaOrnithischiaCeratopsidae
AgeGeologic time
80.1 - 77 Ma | Cretaceous |

Machairoceratops cronusi

It is named after the Greek word machairis meaning "bent sword" and the sickle or scythe-wielding Greek titan Cronus. In life, it likely reached 6-8 m (20-26 ft) in length and weighed 1-2 tons, half the weight of Triceratops.

PhylumClassOrderFamily
ChordataSauropsida?Teleosauridae
AgeGeologic time
154 - 130 Ma | Jurassic | Cretaceous |

Machimosaurus rex

Around 120 million years ago, there lived a monstrous marine crocodile relative named Machimosaurus rex. Its massive jaws could crush turtle shells and it terrorized the warm seas that covered what are now the deserts of Tunisia.

PhylumClassOrderFamily
ChordataMammaliaLitopternaMacraucheniidae
AgeGeologic time
7 Ma - 10,000 | Neogene | Quaternary |

Macrauchenia patachonica

Macrauchenia (name meaning "long llama") was a long-necked and long-limbed, three-toed South American ungulate mammal, typifying the order Litopterna. In life, Macrauchenia resembled a humpless camel with a short trunk, though it is not closely related to either camels or proboscideans.

PhylumClassOrderFamily
ChordataReptiliaOrnithischiaHadrosauridae
AgeGeologic time
80 - 75 Ma | Cretaceous |


Maiasaura peeblesorum

PhylumClassOrderFamily
ChordataMammaliaProboscideaMammutidae
AgeGeologic time
4 Ma - 10,000 | Neogene | Quaternary |

Mammut americanum

PhylumClassOrderFamily
ChordataMammaliaProboscideaElephantidae
AgeGeologic time
1.5 Ma - 11,000 | Quaternary |

Mammuthus columbi

PhylumClassOrderFamily
ChordataMammaliaProboscideaElephantidae
AgeGeologic time
250,000 - 10,000 | Quaternary |


Mammuthus primigenius

PhylumClassOrderFamily
ChordataPlacodermiPtyctodontidaPtyctodontidae
AgeGeologic time
380 Ma | Devonian |

Materpiscis attenboroughi

Armored fish called placoderms like Materpiscis lived in the waters of the Devonian Period. They were among the first creatures to have had jaws, structures modified from their gill arches.

PhylumClassOrderFamily
ChordataReptiliaSquamataVaranidae
AgeGeologic time
1.8 Ma - 50,000 | Quaternary |

Megalania prisca

PhylumClassOrderFamily
ChordataMammaliaArtiodactylaCervidae
AgeGeologic time
400,000 - 10,000 | Quaternary |

Megaloceros giganteus

PhylumClassOrderFamily
ChordataMammaliaArtiodactylaCervidae
AgeGeologic time
3 Ma - 8,000 | Neogene | Quaternary |

Megaloceros

Commonly known as Irish Elk, Megaloceros is actually more closely related to the fallow deer. The largest members of this genus could grow nearly 2 m (6.5 ft) at its shoulders.

PhylumClassOrderFamily
ChordataMammaliaPilosaMegalonychidae
AgeGeologic time
10.3 Ma - 11,000 | Neogene | Quaternary |

Megalonyx jeffersonii

This medium-sized ground sloth could grow to more than twice the size of a polar bear. It appeared in North America 10 million years ago and only went extinct 11,000 before present. Its species name is a tribute to President Thomas Jefferson, who coined the name Megalonyx which means "Large Claw" in 1797.

PhylumClassOrderFamily
ChordataReptiliaSaurischiaMegalosauridae
AgeGeologic time
170 - 155 Ma | Jurassic |

Megalosaurus bucklandi

PhylumClassOrderFamily
ArthropodaInsectaMeganisopteraMeganeuridae
AgeGeologic time
280 Ma | Permian |

Meganeuropsis permiana

The largest known insect of all time belongs to a group of Paleozoic flyers called Griffinflies. With a wingspan reaching more than two feet across, these predators controlled the skies of the late Paleozoic.

PhylumClassOrderFamily
ArthropodaInsectaMeganisopteraMeganeuridae
AgeGeologic time
280 Ma | Permian |

Meganeuropsis

The largest known insect of all time belongs to a group of Paleozoic flyers called Griffinflies. With a wingspan reaching more than two feet across, these predators controlled the skies of the late Paleozoic.

PhylumClassOrderFamily
ArthropodaInsectaMeganisoptera
AgeGeologic time
300 - 240 Ma | Carboniferous | Permian | Triassic |

Meganisoptera

PhylumClassOrderFamily
ArthropodaMerostomataEurypteridaMycteroptidae
AgeGeologic time
300 Ma | Carboniferous |

Megarachne servinei

PhylumClassOrderFamily
ChordataMammaliaPilosaMegatheriidae
AgeGeologic time
30 Ma - 10,000 | Paleogene | Neogene | Quaternary |

Megatherium americanum

PhylumClassOrderFamily
ChordataMammaliaArtiodactylaCamelidae
AgeGeologic time
13.6 - 1.8 Ma | Neogene | Quaternary |

Megatylopus

Growing as tall as 4.20 m (14 ft) tall, the giant camel Megatylopus is only slightly shorter than todays fully-grown giraffes. It lived in North America 13.6 to 1.8 million years ago and its fossils have been found from North Carolina to California.

PhylumClassOrderFamily
ChordataReptiliaSaurischiaMetriacanthosauridae
AgeGeologic time
160 Ma | Jurassic |

Metriacanthosaurus parkeri

This Jurassic predator lived 160 million years ago in what is now England. It is a close relative of the better known Allosaurus, which was mostly found in North America.

PhylumClassOrderFamily
ChordataReptiliaSaurischiaAlvarezsauridae
AgeGeologic time
80 - 72 Ma | Cretaceous |

Mononykus olecranus

PhylumClassOrderFamily
ChordataReptiliaSquamataMosasauridae
AgeGeologic time
100 - 65 Ma | Cretaceous |

Mosasauridae

PhylumClassOrderFamily
ChordataReptiliaSquamataMosasauridae
AgeGeologic time
92 - 66 Ma | Cretaceous |

Mosasaurus

Parapuzosia was a large Cretaceous ammonite which could grow up to 3 m (9.8 ft) in diameter. It lived in a sea full of predators like the monitor lizard-like Mosasaurus.

PhylumClassOrderFamily
ChordataReptiliaSaurischiaNeovenatoridae
AgeGeologic time
93 - 89 Ma | Cretaceous |

Murusraptor barrosaensis

Murusraptor, or "wall robber" is named after the Argentinian ravine wall it was discovered in. For a 7.5 meter (25 ft) long animal, its teeth are unusually small at less than 3 cm (1 in) tall.

PhylumClassOrderFamily
ChordataReptiliaSaurischiaMussauridae
AgeGeologic time
220 Ma | Triassic |

Mussaurus patagonicus

PhylumClassOrderFamily
ChordataReptiliaOrnithischiaRhabdodontidae
AgeGeologic time
112 - 99.6 Ma | Cretaceous |

Muttaburrasaurus

The Wollemi Pine is a critically endangered Australian plant which has been around since the beginning of the Jurassic. Back in the day, it would have lived with large herbivorous dinosaurs such as Muttaburrasaurus.

PhylumClassOrderFamily
ChordataReptiliaPhytosauriaPhytosauridae
AgeGeologic time
| Triassic |

Mystriosuchus

Mystriosuchus was a phytosaur, a lineage of aquatic reptiles very similar but not closely related to true crocodilians. This species lived in the Late Triassic of Europe and show signs of being much more dedicated to an aquatic lifestyle than most of its relatives. Somewhat speculative details are a caudal fin like the later metriorynchid crocodiles and a soft tissue crest like some pterosaurs.

 




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