eprintid: 20646
rev_number: 14
eprint_status: archive
userid: 2485
dir: disk0/00/02/06/46
datestamp: 2016-05-04 09:58:49
lastmod: 2016-05-30 12:48:03
status_changed: 2016-05-04 09:58:49
type: doctoralThesis
metadata_visibility: show
creators_name: Hildenbrand, Anne
title: Agnostoid trilobites and biostratigraphy of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada
subjects: 550
subjects: 560
divisions: 121000
adv_faculty: af-12
keywords: Serie 3
Drumium
Manuels-River-Formation
Avalonia
cterms_swd: Agnostida
cterms_swd: Trilobiten
cterms_swd: Biostratigraphie
cterms_swd: Paläobiogeographie
cterms_swd: Mittelkambrium
cterms_swd: Newfoundland (Insel)
abstract: Agnostoid trilobites from the type locality of the middle Cambrian (Series 3, Drumian) Manuels River Formation, Newfoundland, Canada, are described systematically. The fauna consists of 1408 specimens, collected bed-by-bed. The taxa are assigned to the suborders Agnostina and Eodiscina, families Peronopsidae, Ptychagnostidae, Condylopygidae and Eodiscidae, genera Peronopsis Hawle and Corda, 1847, Hypagnostus Jaekel, 1909, Ptychagnostus Jaekel, 1909, Tomagnostus Howell, 1935, Pleuroctenium Hawle and Corda, 1847, and Eodiscus Hartt in Walcott, 1884, and the species Peronopsis fallax (Linnarsson, 1869), Peronopsis scutalis (Hicks, 1872), Hypagnostus parvifrons (Linnarsson, 1869), Ptychagnostus punctuosus (Angelin, 1851), Ptychagnostus affinis (Brøgger, 1879), Ptychagnostus atavus (Tullberg, 1880), Tomagnostus fissus (Lundgren in Linnarsson, 1879), Tomagnostus perrugatus (Grönwall, 1902), Pleuroctenium granulatum (Barrande, 1846) and Eodiscus punctatus (Salter, 1864b). The faunal assemblage is subdivided from base to top into five interval zones, viz. Peronopsis scutalis, Tomagnostus fissus, Ptychagnostus atavus, Ptychagnostus affinis and Ptychagnostus punctuosus zones. The Ptychagnostus punctuosus Zone can be compared regionally and globally. The entire fauna is comparable to that of Baltica and Greenland, which suggests geographic proximity during the middle Cambrian. Pleuroctenium granulatum is endemic to Avalonia and Baltica.
date: 2016
id_scheme: DOI
id_number: 10.11588/heidok.00020646
ppn_swb: 1656799197
own_urn: urn:nbn:de:bsz:16-heidok-206461
date_accepted: 2016-04-29
advisor: HASH(0x556120a513d0)
language: eng
bibsort: HILDENBRANAGNOSTOIDT2016
full_text_status: public
citation:   Hildenbrand, Anne  (2016) Agnostoid trilobites and biostratigraphy of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/20646/1/PHD_Hildenbrand_2016_final_PDFA.pdf