Matanuska
Description
Source: Wikipédia
The Matanuska Formation consists of more than 3 km (1.9 mi) of sedimentary strata exposed in the northern Chugach Mountains, Matanuska Valley, and southern Talkeetna Mountains of south-central Alaska. The Matanuska Formation contains strata from Early Cretaceous (Albian) to Late Cretaceous (Maestrichtian). Parts of the formation contain abundant marine mollusks, foraminifera, and radiolaria. Fossils of nonmarine plants are found in some beds. Fossils of two dinosaurs have been recovered from marine mudstones in the formation. The lower Matanuska Formation (MF) is several hundred meters thick and includes nonmarine and marine sediments. Campanian-Maastrichtian graded sandstone, conglomerate, and mudstone comprise the upper 2000 m of the Formation.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 2
Talkeetna Mountains hadrosaur (TMM) Quarry : Alaska - ? 12945 14081 17031 30213 54137 68933 in a privately owned borrow pit, near city of Glenallen, Talkeetna Mountains, 150 km NE of Anchorage, S-central Alaska, near Glenn Hwy- Matanuska ankylosaur site (DPMWA) : Alaska - Matanuska-Susitna 14081 14082 54137 68933 Matanuska-Susitna Borough, along a 10 m high bluff undercut at high water by a small side channel of Caribou Creek
Publication(s)
La base comprend 7 publication(s).
Source: The Paleobiology Database
- ↑1 2 A. D. Pasch and K. C. May. 1995. Significance of a new hadrosaur (Hadrosauridae) from the Matanuska Formation (Cretaceous) in southcentral Alaska. Journal of Vertebrate Paleontology 15(3, suppl.):48A
- ↑1 T. H. Rich. 1996. Significance of polar dinosaurs in Gondwana. Memoirs of the Queensland Museum 39(3):711-717
- ↑1 2 R. A. Gangloff. 1998. Arctic dinosaurs with emphasis on the Cretaceous record of Alaska and the Eurasian-North American connection. Lower and Middle Cretaceous Terrestrial Ecosystems, New Mexico Museum of Natural History and Science Bulletin 14:211-220
- ↑1 H.-D. Sues and A. Averianov. 2009. A new basal hadrosauroid dinosaur from the Late Cretaceous of Uzbekistan and the early radiation of duck-billed dinosaurs. Proceedings of the Royal Society B: Biological Sciences 276(1667):2549-2555 (https://doi.org/10.1098/rspb.2009.0229)
- ↑1 2 T. H. Rich, R. A. Gangloff, and W. R. Hammer. 1997. Polar dinosaurs. Encyclopedia of Dinosaurs
- ↑1 2 R. A. Gangloff. 2012. Dinosaurs Under the Aurora (https://doi.org/10.1016/j.tibs.2011.11.003)
- ↑1 2 R. A. Gangloff. 1995. Edmontonia sp., the first record of an ankylosaur from Alaska. Journal of Vertebrate Paleontology 15(1):195-200 (https://doi.org/10.1080/02724634.1995.10011218)