fossil

Permineralized Jurassic fern rhizome from Korsaröd (Sweden) of Osmundastrum pulchellum. It has preserved Nuclei and Chromosomes, a fine subcellular detail has rarely been documented in fossils. It´s Rooted in DNA content was used to extrapolate relative genome, finding relationships with extant Osmundastrum cinnamomeum, and confirmed a monophyletic Osmunda. Osmundastrum pulchellum is one of the earliest fossil Osmundastrum rhizomes known so far, and the first of its kind from the Mesozoic of Europe. Its impressive preservation has lead to know even the biotic interactions with the Plant. It also has recovered the only know case know to preserve the ongoing mitosis processes in plant cells via calcification from volcanic hydrothermal brine.

Reprodução a partir da gravura original do Holótipo, Hybodus acutus Agassiz, 1837, na publicação e prancha: L. Agassiz. 1837. Recherches sur les poissons fossiles Vol.3 (Atlas); Tab 10

Graph of relative Dinosaur fossil populations from each period of geologic time in the Mesozoic, ordered by major clade

Fossil of the Decapod Cycleryon

Fig 2. Geological section of the “Mittlerer Kimmeridge”. This figure is based on Fischer and modified from Lallensack et al. Beds yielding terrestrial fossils are listed.

Fossil shell of Aulacostephanus yo from France, on display at Gallery of Paleontology and Comparative Anatomy, Paris.

The GSSP for the Hirnantian stage in the ICS geological timescale (uppermost Ordovician stage), located in the Wangjiawan profile (an outcrop of black shale, brownishly weathered siliceous shale and chert layers of the Wufeng Formation) along the G241 road, about 40 km north of Yichang, Hubei, China. An exact golden spike is missing in the profile (2025) but a memorial plague marks the place. The GSSP occurs at the first appearance of fossils of the graptolite species Normalograptus extraordinarius. It was ratified in 2006.

Crioceratites fabreae fossils on display at the French National Museum of Natural History in Paris, France.

Crioceratites duvali fossil on display at the French National Museum of Natural History in Paris, France.

“Sternberger Kuchen” (“Sternberg cake”), a large late Pleistocene glaciofluvial pebble of a highly fossiliferous, shallow marine sandstone of the North German Paleogene (Sülstorf beds, formerly known as “Sternberg rock”, Chattian, Oligocene, about 25 million years old). The fossil content is mainly made up of mollusks (pelecypods, gastropods, scaphopods). Provenance: Sternberg, Mecklenburg-Vorpommern, Northeast Germany.

Fossil of Cainotherium, an extinct mammal https://hdl.handle.net/21.12123/66925 in ferruginous rock of Oligocene (Chattian) age from Ingolstadt in Bavaria, Germany - Took the photo at Museon museum, Den Haag

A fossil tree from the Coal Creek region, Fruitland Formation, latest Cretaceous (Late Campanian), San Juan Basin, New Mexico

Glyptostrobus europaeus fossil leaves of Burdigalian stage in the early Miocene epoch, from a brown coal mine in Bilina, Czech Republic.

Brachipotherium aurelianense, from Rubí. Fossils. Collection of paleontology of the Geological Museum of the Barcelona Seminari (Museu Geològic del Seminari de Barcelona).

Ficus truncata fossil leaf from the early Miocene epoch 20 Ma, of the Třetihorní flóra from Bílina, Czech Republic.

Comptonia acutiloba fossil leaves from the early Miocene epoch 20 Ma, of the Třetihorní flóra from Bílina, Czech Republic.