The Trempealeauan is the upper or latest stage of the Upper or Late Cambrian in North America, spanning about 4 million years from about 492.5 to 488...
3 KB (179 words) - 06:37, 8 February 2021
Batyrbaian Skullrockian / Ibexian (part) Merionethian Payntonian Sunwaptan / Trempealeauan Jiangshanian Jiangshanian Iverian Aksaian Sakian Paibian Paibian Idamean...
89 KB (9,316 words) - 06:11, 22 November 2024
Plectronoceratids are known from the Upper Cambrian (upper Franconian – middle Trempealeauan) of China and North America (Minnesota, Wisconsin). Two families are...
4 KB (424 words) - 09:36, 14 February 2023
nautiloid cephalopod from the Upper Yenchau and Wanwankau, Upper Cambrian Trempealeauan of China, assigned to the Ellesmeroceratidae. The shell of Eburoceras...
2 KB (210 words) - 16:06, 28 March 2020
their derivation in the Plectronoceratidae, order Plectronocerida, in Trempealeauan stage of the Late Cambrian from which time 13 genera have been described...
6 KB (662 words) - 08:22, 24 August 2023
Shantungendoceras Temporal range: Late Cambrian (Trempealeauan) Scientific classification Kingdom: Animalia Class: Cephalopoda Superorder: Plectronoceratoidea...
3 KB (268 words) - 11:35, 11 August 2022
Huaiheceras Temporal range: Trempealeauan PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda...
1 KB (107 words) - 20:45, 19 March 2024
derived from the Plectronocerida, having first appeared early in the Trempealeauan Stage of the Late Cambrian and quickly diversifying into four families...
8 KB (890 words) - 19:49, 18 November 2024
Wanwankou member of the Fengshan formation (Early, Middle and Upper Trempealeauan) in northern Anhui, China. It is similar to Paraplectronoceras except...
2 KB (164 words) - 19:59, 18 November 2024
one of only two genera known to have crossed from the Late Cambrian, Trempealeauan, into the Early Ordovician, Gasconadian. (Flower 1964, Teichert 1988);...
3 KB (360 words) - 01:45, 12 June 2024
The Franconian is preceded by the Dresbachian and followed by the Trempealeauan, respectively the lower and upper stages of the North American Upper...
3 KB (164 words) - 19:45, 10 August 2021
Cambrian-Ordovician boundary, with the lower beds containing fossils of Trempealeauan age and the upper beds containing fossils of Skullrockian age. The formation...
5 KB (471 words) - 16:49, 18 January 2022
Ordovician Canadian Epoch, coming immediately after the Late Cambrian Trempealeauan and preceding the middle Canadian Demingian Stage. The Gasconadian is...
6 KB (571 words) - 09:07, 17 November 2023
Acaroceratidae is family of Upper Cambrian (Trempealeauan) nautiloid cephalopods included in the Ellesmerocerida that contains two known genera, Acaroceras...
3 KB (293 words) - 18:29, 28 April 2021
478.6 ± 1.7 epoch Ordovician ICS Tremadoc Bay (Wales) Sedgwick, 1846 Trempealeauan 492.5 488.3 ± 1.7 age Cambrian North America Trentonian age Carboniferous...
77 KB (676 words) - 12:15, 4 August 2024
lower part of the Changia Zone, which is correlated with the earliest Trempealeauan of North America. Wen-tang Zhang; Pei-ji Chen; A. R. Palmer (2003)....
2 KB (225 words) - 01:00, 13 June 2021
extends 2.7 .m.y. into the Cambrian taking up more than half of the Trempealeauan. The Cassinian is followed in North America by the Whiterockian and...
2 KB (328 words) - 01:46, 16 July 2022
Cliff Formation Tremadocian Cass Fjord Formation Tremadocian Sunwaptan Trempealeauan Tavsens Iskappe Holm Dal Formation Marjumian Menevian Kap Stanton Formation...
39 KB (905 words) - 04:50, 19 November 2024