Vertebrate microremains from the late Silurian of Arisaig, Nova Scotia, Canada

Autor:	Susan Turner, Carole J. Burrow, Godfrey S. Nowlan, Robert H. Denison
Rok vydání:	2013
Předmět:	biology Nostolepis Fauna Paleontology Vertebrate biology.organism_classification Taxon biology.animal Thelodus Laurentia Geology Terrane Invertebrate
Zdroj:	Journal of Paleontology. 87:1041-1059
ISSN:	1937-2337 0022-3360
DOI:	10.1666/12-154
Popis:	Rare scales of agnathan thelodontsParalogania ludlowiensisandThelodussp. cf.T. parvidens, or alternativelyThelodus macintoshi, and acanthodian fishesNostolepis striata,Gomphonchussp.,Gomphonchoporussp. aff.G. hoppei, andMachaeraporus stonehousensis(Legault) n. gen., plus acanthodian fin spines, teeth and tooth whorls have been identified from the upper Moydart and Stonehouse formations near Arisaig, Nova Scotia. The assemblage agrees well with the late Silurian (uppermost Ludlow–Přídolí) age assigned to these strata based on invertebrate assemblages, and the vertebrate taxa show affinity with British and Baltic faunas of this age. All vertebrate-bearing strata were deposited in various positions off the western shores of the Avalonia terrane during or after its collision with Laurentia.
Databáze:	OpenAIRE
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