Ammonite

Author: Nicola Griffith
Publisher: Hachette UK
ISBN: 0575118245
Size: 70.51 MB
Format: PDF, ePub, Docs
View: 7424

Download Read Online

Ammonite. Change or die. These are the only options available on the planet Jeep. Centuries earlier, a deadly virus shattered the original colony, killing the men and forever altering the few surviving women. Now, generations after the colony has lost touch with the rest of humanity, a company arrives to exploit Jeep - and its forces find themselves fighting for their lives. Terrified of spreading the virus, the company abandons its employees, leaving them afraid and isolated from the natives. In the face of this crisis, anthropologist Marghe Taishan arrives to test a new vaccine. As she risks death to uncover the women's biological secret, she finds that she, too, is changing - and realizes that not only has she found a home on Jeep, but that she alone carries the seeds of its destruction ... Winner of the James Tiptree, Jr. Award 1993

The Tithonian Jurassic Ammonite Fauna And Stratigraphy Of Sierra Catorce San Luis Potosi Mexico

Author: Harish M. Verma
Publisher:
ISBN:
Size: 30.18 MB
Format: PDF, ePub, Docs
View: 5454

Download Read Online

The Tithonian Jurassic Ammonite Fauna And Stratigraphy Of Sierra Catorce San Luis Potosi Mexico. The Jurassic and Cretaceous of Sierra Catorce, which yielded the molluscan fauna for the first large paleontological monograph on Mexico (Castillo and Aguilera, 1895), comprises from the base: the Oxfordian Huizachal Formation and Zuloaga Limestone and the Kimmeridgian to Tithonian La Caja Formation which is overlain by the Valanginian Taraises Formation. The richly fossiliferous La Caja (≤ 53 m) is divided into two members. The El Pastor Member, below, contains two condensed fossiliferous units, one near the base and one near the top; the El Verde Member, above, has sporadically distributed ammonite fauna. The taxonomic revision is based on approximately 2,000 specimens from 40 localities including 4 almost complete sections. Only 13 of the 25 species formerly described are valid. Twenty-six species are added to the known Tithonian species of Sierra Catorce. Five species and one subspecies are new: Virgatosphinctes sanchezi, Kossmatia purisima, Substeueroceras catorcense, Corongoceras cordobai, Durangites alencasteri, and Substeueroceras koeneni (Steuer) tabulatum. Of the total of 52 species described here, 20-21 are endemic, 8-9 are in common with Argentina, 5 in common with Europe and 4 in common with the Indo-Malgache region. Many species are dimorphic. The ammonite fauna is classified into 6 families, 20 genera and 52 species which, with the exception of one Kimmeridgian genus comprising 3 species, are of Tithonian age. Eleven Tithonian genera are recorded for the first time from Sierra Catorce: Pseudolissoceras Spath, "Paraglochiceras" Collignon, Pseudoinvoluticeras Spath, Virgatosphinctes Uhlig, Simoceras Zittel, Physodoceras Hyatt, Substeueroceras Spath, Andiveras Krantz, Corongoceras Spath, Micracanthoceras Spath and Durangites Burckhardt. On the basis of abundant new material, the genera Substeueroceras, Kossmatia and Durangites are discussed in detail. "Parodontoceras" Spath is a synonym of Substeuerocedras; Kossmatia is transferred from the family Ataxioceratidae (cf. Treatise) to the Berriasellidae; Durangites may be dimorphic. Four major ammonite assemblages are recognized: (1) the small Kimmeridgian Idoceras assemblage near the base of the El Pastor Member, (2) the diverse late Lower ("Middle") Tithonian Virgatosphinctinae assemblage in the upper El Pastor Member, (3) the early Upper Tithonian Kossmatia-Durangites-Corongoceras assemblage in the lower El Verde Member, and (3) the late Upper Tithonian Substeueroceras-Berriasella assemblage in the upper El Verde Member. There is closet affinity at generic and specific levels with Tithonian faunas especially of Argentina: the condensed Virgatosphinctinae Beds are correlated with the two Argentine zones of Virgatosphintes mendozanus and Pswudolissoceras zitteli; the Kossmatia-Durangites-Corongoceras assemblage is in part equivalent to the Argentine Zone of Corongoceras alternans; and the Substeuroceras-Berriasella assemblage belongs to the Substeueroceras koeneni Zone. Mediterranean affinities appear to be secondary. Boreal elements are missing. On account of high clastic content, the abundance of benthos, and the impoverishment of compressed involute forms among the ammonites, the La Caja Formation appears to have been deposited in shallow, moderately off-shore waters.

The Ammonites

Author: Craig W. Tyson
Publisher: A&C Black
ISBN: 056765544X
Size: 21.35 MB
Format: PDF, ePub, Mobi
View: 2621

Download Read Online

The Ammonites. This book investigates the archaeological, epigraphic, and biblical evidence for the course of Ammon's history, setting it squarely within the context of ancient Near Eastern imperialism. Drawing on cross-cultural parallels from the archaeology of empires, Tyson elucidates the dynamic processes by which the local Ammonite elite made the cousins of biblical Israel visible to history. Tyson explains changes in the region of Ammon during the Iron Age II, namely the increasing numbers of locally produced elite items as well as imports, growth in the use of writing for administrative and display purposes, and larger numbers of sedentary settlements; in the light of the transformative role that the Neo-Assyrian and Neo-Babylonian empires played in the ancient Near East. The study also widens the conversation to consider cross-cultural examples of how empires affect peripheral societies.

A Monograph On The Lias Ammonites Of The British Islands

Author: Thomas Wright
Publisher: Cambridge University Press
ISBN: 110808141X
Size: 56.21 MB
Format: PDF, Mobi
View: 6758

Download Read Online

A Monograph On The Lias Ammonites Of The British Islands. Issued in multiple parts in 1878-86, this monograph is reissued in two volumes and includes nearly ninety exquisite plates.