Microvertebrates from the Silurian–Devonian boundary beds of the Eastport Formation, Maine, eastern USA

Auteurs-es

DOI :

https://doi.org/10.4138/atlgeol.2018.006

Mots-clés :

Thelodonti, Acanthodii, paleobiogeography, Avalonia, biostratigraphy

Résumé

Agnathan and gnathostome remains, associated with lingulid brachiopod fragments and distinctive ostracods, have been extracted from a small calcareous mudstone sample collected from the type section of the Eastport Formation on the northern shore of Moose Island, Maine. The vertebrate assemblage includes osteostracan, anaspid, and thelodont scales, and acanthodian scales, spines and teeth, which support a late Pridoli, or possibly earliest Lochkovian, age for the stratum. The thelodont Paralogania denisoni n. sp. is described, associated with a single thelodont scale referred tentatively to Talivalia? sp. indet., and acanthodians Nostolepis striata, Gomphonchus sandelensis, andPoracanthodes punctatus in a fauna that shows similarities to late Pridoli assemblages in Britain, parts of Europe, Russia, Greenland, and arctic Canada.

Biographie de l'auteur-e

Carole J. Burrow, Queensland Museum

Geosciences

Honorary Research Fellow

Téléchargements

Publié-e

2018-06-15

Comment citer

Turner, S., & Burrow, C. J. (2018). Microvertebrates from the Silurian–Devonian boundary beds of the Eastport Formation, Maine, eastern USA. Atlantic Geoscience, 54, 171–187. https://doi.org/10.4138/atlgeol.2018.006

Numéro

Vol. 54 (2018)

Rubrique

Articles

Licence

All material contained in Atlantic Geology is copyrighted by the journal. Permission to photocopy for internal or personal use or for the internal or personal use of specific clients is granted by Atlantic Geology to libraries and other users registered with the Copyright Clearance Center (CCC), provided that the stated fee per copy is paid directly to the CCC, 21 Congress Street, Salem, Massachusetts 01970 USA. Other requests should be addressed to one of the journal editors, or sent to Atlantic Geology, Box 116, Acadia University, Wolfville, NS, Canada B4P 2R6. Permission to use a single graphic for which Atlantic Geology owns copyright is considered “fair dealing” under the Canadian Copyright Act and “fair use” by the journal, and no other permission need be granted, subject to the image being appropriately cited in all reproductions. The same fair dealing/fair use policy applies to sections of text up to 100 words in length.