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By:
Nitecki, Matthew H.

Publication info:
[Chicago]Field Museum of Natural History,1970.

Contributing Library:
University of Illinois Urbana Champaign

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LEADER

• Record Status: c
• Type of record: a
• Bibliographic level: m
• Type of control:
• Undefined: a
• Encoding level:
• Descriptive cataloging form:
• Linked record requirement:

CONTROL FIELD

• Control Field 001: 5386374

CONTROL FIELD

• Control Field 005: 20071022105435.0

CONTROL FIELD

• Control Field 008: 710311s1970 iluab b 000 0 eng

LIBRARY OF CONGRESS CONTROL NUMBER

• LC control number: 71135119

SYSTEM CONTROL NUMBER

• System control number: (OCoLC)ocm00124459

CATALOGING SOURCE

• Original cataloging agency: DLC
• Transcribing agency: DLC
• Modifying agency: BTCTA
• Modifying agency: UIU

GEOGRAPHIC AREA CODE

• Geographic area code: n------

LIBRARY OF CONGRESS CALL NUMBER

• Classification number: QE1
• Item number: .F4 vol. 21

LIBRARY OF CONGRESS COPY, ISSUE, OFFPRINT STATEMENT

• Classification number: QE955
• Item number: .N55

DEWEY DECIMAL CALL NUMBER

• Classification number: 550/.8 s

MAIN ENTRY--PERSONAL NAME

• Personal name: Nitecki, Matthew H.

TITLE STATEMENT

• Title: North American cyclocrinitid algae /
• Remainder of title page transcription/statement of responsibility: [by] Matthew H. Nitecki --

VARYING FORM OF TITLE

• Title proper/short title: Cyclocrinitid algae

PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)

• Place of publication, distribution, etc.: [Chicago]
• Name of publisher, distributor, etc.: Field Museum of Natural History,
• Date of publication, distribution, etc.: 1970.

PHYSICAL DESCRIPTION

• Extent: p. vii-[xiv], 182 p.
• Other physical details: 61 ill., map ;
• Dimensions: 24 cm.

SERIES STATEMENT/ADDED ENTRY--TITLE

• Title: Fieldiana.
• Name of part/section of a work: Geology ;
• Volume number/sequential designation: v. 21

SERIES STATEMENT

• Series statement: [Field Museum of Natural History, Chicago] Publication
• Volume number/sequential designation: 1110

GENERAL NOTE

• General note: "November 16, 1970."

BIBLIOGRAPHY, ETC. NOTE

• Bibliography, etc. note: Includes bibliographical references (p. 165-182).

FORMATTED CONTENTS NOTE

• Formatted contents note: Pt. I: Introduction -- Previous major publications -- Morphology -- Taxonomic position -- Ecology -- Pt. II: Systematic descriptions -- Pt. III: Original definitions and descriptions of other authors. -- Annotated bibliography.

SUMMARY, ETC.

• Summary, etc.: Cyclocrinitids are marine dasycladaceous algae of Ordovician and Silurian age. Their skeletal elements consist of a seldom calcified main axis on which lateral branches are borne in whorls. Calcified heads commonly form at the termini of the laterals. In North America cyclocrinitids are represented by three genera: Anomaloides, Cyclocrinites, and Lepidolites. Anomaloides (=Anomalospongia) possesses laterals calcified throughout their extent. They expand gently outward, and no heads form. Three secondary laterals form threadlike projections at the terminus of each lateral. -- Cyclocrinites (=Cyclocrinus, Lunulites, Cerionites, Pasceolus, Mastopora, and Nidulites) with a globose thallus is the most diversified genus. The laterals expand at the termini and form generally six-sided heads. In one species the laterals branch to the second degree. The lateral heads are in some species supported by four to six ribs. In at least one species the laterals constrict twice and form two layers of heads, one above the other. The main axis is generally short, and attachment is by means of a pedicle that is, however, frequently not preserved. Calcification generally occurs above and below the lateral heads. One new species, Cyclocrinites welleri, is described. -- Lepidolites consists of one species only and is the most modified of all cyclocrinitids. The laterals are short, small, and calcified; their ends are modified and form overlapping plates. -- The cyclocrinitids have been variously assigned by many authors to many groups, particularly as an appendix to the sponges. They are here considered a basal receptaculitid stock that possesses the simplest structures. They fill an important gap in the fossil record of Paleozoic algae.

ISSUING BODY NOTE

• Issuing body note: Fieldiana series has been published as Geological Series by Field Columbian Museum (1895-1909) and Field Museum of Natural History (1909-1943), and as Fieldiana: Geology by Chicago Natural History Museum (1945-1966) and Field Museum of Natural History (1966-).

SUBJECT ADDED ENTRY--TOPICAL TERM

• Topical term or geographic name as entry element: Dasycladaceae, Fossil.

SUBJECT ADDED ENTRY--TOPICAL TERM

• Topical term or geographic name as entry element: Paleontology
• Chronological subdivision: Silurian.

SUBJECT ADDED ENTRY--TOPICAL TERM

• Topical term or geographic name as entry element: Paleontology
• Chronological subdivision: Ordovician.

SUBJECT ADDED ENTRY--TOPICAL TERM

• Topical term or geographic name as entry element: Paleontology
• Geographic subdivision: North America.

SERIES ADDED ENTRY--UNIFORM TITLE

• Uniform title: Publication (Field Museum of Natural History) ;
• Volume number/sequential designation: 1110.

DATA FIELD 938

• Code a: Baker and Taylor
• Code b: BTCP
• Code n: 71135119

DATA FIELD 994

• Code a: C0
• Code b: UIU