Middle Cambrian of Avalonian Massachusetts: Stratigraphy and correlation of the Braintree trilobrites

From: Journal of Paleontology | Date: January 1, 2001| Author: | Copyright information

ABSTRACT-Although Middle Cambrian trilobites of the Braintree Member in eastern Massachusetts were among the first published on in North America, re-examination of this fauna has led to wholesale taxonomic and biostratigraphic re-evaluation. This low diversity fauna now includes at least seven sp ecies, with the first report of agnostoids (three poorly preserved taxa) and the ellipsocephalid Kingaspis avalonensis new species. Paradoxides (Acadoparadoxides) harlani Green emend., a senior synonym of P. (A.) haywardi Raymond, allows correlation into the lowest Middle Cambrian elsewhere in Avalon. ...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

Trilobites from the Lejopyge armata Zone (upper Middle Cambrian) of the Machari Formation, Yongwol Group, Korea
; ...is correlated well with the upper Middle Cambrian biozones established elsewhere. This...biostratigraphic reference point for the upper Middle Cambrian sequence of the Yongwol Group and...gap between the Tonkinella (middle Middle Cambrian) and the Glyptagnostus stolidotus...
Association of fossils and history of research at the Týrovice - "Pod hruskou" locality (Middle Cambrian, Skryje-Týrovice Basin, Barrandian area)/Spolecenstvo fosílií a historie výzkumu na lokalite Týrovice - ,,Pod hruskou" (strední kambrium, skryjsko-týrovická pánev, barrandienská oblast)
; ...stratigraphical research at the classical Middle Cambrian locality at Trovice - "Pod hruskou...association; history of research; Middle Cambrian; Skryje-Trovice Basin; Barrandian...famous because of the well diversified Middle Cambrian assemblage but mainly because of the...
TUZOIA: MORPHOLOGY AND LIFESTYLE OF A LARGE BIVALVED ARTHROPOD OF THE CAMBRIAN SEAS
; ...of abundant new specimens from the Middle Cambrian Burgess Shale (British Columbia, Canada...Cambrian-Upper Cretaceous). In the Middle Cambrian, Tuzoia occurs across Laurentia, South...largest bivalved arthropod of the Middle Cambrian Burgess Shale fauna from which it...
New well-preserved scleritomes of Chancelloridae from the early Cambrian Yuanshan formation (Chengjiang, China) and the middle Cambrian wheeler shale (Utah, USA) and...
; ...Chancelloria eros Walcott, 1920 from the Middle Cambrian of Utah, USA and isolated phosphatized...Chen and Zhou, 1997, p. 29). From the Middle Cambrian, isolated sclerites of the Chancelloridae...preserved chancellorid scleritomes of Middle Cambrian age occur in the Burgess Shale ...
THE MIDDLE CAMBRIAN EODISCOID TRILOBITE DAWSONIA OELANDICA (WESTERGÅRD, 1936)
; ...of upper Lower Cambrian and lower Middle Cambrian strata (e.g., Robison et al., 1977...eodiscoid species are known from the Middle Cambrian of Sweden; Eodiscus scanicus (Linnarsson...last-mentioned species is from the upper Middle Cambrian Lejopyge laevigata Zone (sensu Westergrd...
The Burgess Shale arthropod Mollisonia (M. Sinica new species): New occurrence from the middle Cambrian Kaili fauna of southwest China
; ...significant, although less acclaimed, Middle Cambrian soft-bodied fauna as well, namely...Formation ranges from late Early to early Middle Cambrian. Regionally, the Kaili Formation is...at the base. The middle part (early Middle Cambrian, ca. 123 m) consists of dark green...
Behind the Frontier: Indians in Eighteenth-Century Eastern Massachusetts.(Review)
; ...Indians in Eighteenth-Century Eastern Massachusetts. Lincoln: Univ. of Nebraska Press...Mandell chronicles the history of eastern Massachusetts Indians from roughly 1676 to 1800...argues that the Algonquian groups of eastern Massachusetts maintained a surprising degree...
3 generations find fossil treasures
; ...are mesmerized with the world of the Middle Cambrian, the era more than half a billion...nearby mountains heading toward a Middle Cambrian locality. "We were trying to climb...anything." A true explorer of the Middle Cambrian, he dusted himself off and continued...
New creatures from Cambrian. (fossils found in British Columbia)
; ...embedded in the Burgess shale since the Middle Cambrian 530 million years ago, provided scientists...beginnings. Now a new assemblage of Middle Cambrian fossils has been unearthed, giving...two recent finds indicate that the Middle Cambrian animals were not evolving very rapidly...
FAUNAS AND CAMBRIAN VOLCANISM ON THE AVALONIAN MARGINAL PLATFORM, SOUTHERN NEW BRUNSWICK
; ...Terreneuvian-early Branchian). Latest Early-middle Middle Cambrian pyroclastic volcanism produced a volcanic...northwest margin of Avalon. Middle Middle Cambrian sea-level rise, probably in the Paradoxides...upper Manuels River Formation (upper Middle Cambrian, P. davidis Zone) is ...