[Opis] Crittendenceratops

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Kamil Kamiński
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[Opis] Crittendenceratops

Post autor: Kamil Kamiński »


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Lythronax
Złoty Dinek I-VI 2023
Złoty Dinek I-VI 2023
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Re: [Opis] Crittendenceratops

Post autor: Lythronax »

Fragment z tej publikacji sugeruje, że Crittendenceratops mógł żyć w santonie, co czyniłoby go najstarszym znanym centrozaurynem.
Caylor i in. (2021) pisze:The basal shale member is poorly exposed along the eastern flank of the Santa Rita Mountains and comprises five subunits that have been interpreted as lake margin and open lacustrine deposits (Drewes, 1971b; Hayes, 1986; Inman, 1987). Fossils in the basal shale member include freshwater gastropods, bivalves, turtles, freshwater fish, iguanodontid, and dinosaur fossils (Stoyanow, 1949; Miller, 1964; McCord, 1997; Dalman et al., 2018). Dinosaur fossils include Hadrosaurs, Theropods, and the most recently discovered 4 Crittendenceratops (Stoyanow, 1949; Miller, 1964; McCord, 1997; Heckert et al., 2003; Lucas and Heckert, 2005; Dalman et al., 2018). Fossil content within the basal shale member estimates a Santonian (ca. 86 Ma) maximum depositional age for the base of the Fort Crittenden Formation (Fig. 2C; Drewes, 1971b; Inman, 1987). Age control within the fluvial to alluvial fan deposits of the lower red, brown, and upper red conglomerate members of the Santa Rita Mountains and alluvial fan to lacustrine deposits of the conglomerate and upper shale members in the Huachuca Mountains does not exist.
Caylor, E. A., Carrapa, B., Sundell, K., DeCelles, P. G., & Smith, J. M. (2021). Age and deposition of the Fort Crittenden Formation: A window into Late Cretaceous Laramide and Cenozoic tectonics in southeastern Arizona. Bulletin, 133(9-10), 1996-2016.

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