Megareefs in Middle Devonian supergreenhouse climates

Author(s):  
Paul Copper ◽  
Christopher R. Scotese
Keyword(s):  
2020 ◽  
Author(s):  
Teresa D. Avila ◽  
◽  
Matthew R. Saltzman ◽  
Elizabeth M. Griffith ◽  
Michael M. Joachimski

2020 ◽  
Author(s):  
Kenneth C. Gass ◽  
◽  
Joanne Kluessendorf ◽  
Donald G. Mikulic ◽  
Carlton E. Brett

2019 ◽  
Vol 94 (1) ◽  
pp. 99-114
Author(s):  
Brian D.E. Chatterton ◽  
Stacey Gibb ◽  
Ryan C. McKellar

AbstractThree new species of Cyphaspides are proposed: C. ammari, C. nicoleae, and C. pankowskiorum. These species are based on specimens obtained from Middle Devonian (Eifelian) strata of the Bou Tchrafine Group, near Erfoud, in the Province of Errachidia, southeastern Morocco. The present contribution enhances our knowledge of Cyphaspides by providing details of three new species that are based on well-preserved, complete, and articulated types. The genus Cyphaspides is discussed, and an emended diagnosis is provided. The paleobiogeography, ontogeny, and relationships of the genus are discussed.UUID: http://zoobank.org/4a7aab8f-8c8e-4498-9cc2-6f8c69b85213


1870 ◽  
Vol 7 (75) ◽  
pp. 397-399
Author(s):  
E. Ray Lankester

Principal Dawson, of Montreal,. Canada, has placed in my hands for description a remarkably interesting specimen, indicating a species of the genus Cephalaspis in transatlantic Silurio-Devonian beds. He writes, “The specimen was found by one of my assistants, Mr. G. F. Kennedy, B.A., when collecting with me, in a bed charged with remains of Psilophyton, on the north side of Gaspé Bay. The geological horizon is below the middle of the Gaspé Sandstones, but several hundreds of feet above their actual base, so that the specimen may be regarded as either Lower Devonian or Lower Middle Devonian.


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