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By:
Croft, Darin A.
Flynn, John J. 1955-
Wyss, André R.

Publication info:
Chicago, Ill. :Field Museum of Natural History,2004.

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LEADER

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

CONTROL FIELD

• Control Field 001: 4957555

CONTROL FIELD

• Control Field 005: 20071024132622.0

CONTROL FIELD

• Control Field 008: 040806s2004 iluab b 000 0 eng d

SYSTEM CONTROL NUMBER

• System control number: (OCoLC)ocm56105997

CATALOGING SOURCE

• Original cataloging agency: IBT
• Transcribing agency: IBT
• Modifying agency: OCLCQ
• Modifying agency: UIU

INTERNATIONAL STANDARD BOOK NUMBER

• Terms of availability: (pbk.)

GEOGRAPHIC AREA CODE

• Geographic area code: s-cl---

LIBRARY OF CONGRESS CALL NUMBER

• Classification number: QE1
• Classification number: QE882.U8
• Item number: .F4 n.s., no.50

MAIN ENTRY--PERSONAL NAME

• Personal name: Croft, Darin A.

TITLE STATEMENT

• Title: Notoungulata and Litopterna of the Early Miocene Chucal fauna, northern Chile /
• Remainder of title page transcription/statement of responsibility: Darin A. Croft --, John J. Flynn --, André R. Wyss --.

VARYING FORM OF TITLE

• Title proper/short title: Chucal ungulates

PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)

• Place of publication, distribution, etc.: Chicago, Ill. :
• Name of publisher, distributor, etc.: Field Museum of Natural History,
• Date of publication, distribution, etc.: 2004.

PHYSICAL DESCRIPTION

• Extent: iv, 52 p. :
• Other physical details: 31 ill., maps ;
• Dimensions: 26 cm.

SERIES STATEMENT/ADDED ENTRY--TITLE

• Title: Fieldiana.
• Name of part/section of a work: Geology,
• Volume number/sequential designation: new ser., no. 50
• International Standard Serial Number: 0096-2651 ;

SERIES STATEMENT

• Series statement: Publication ;
• Volume number/sequential designation: 1528

GENERAL NOTE

• General note: "Published July 30, 2004."

BIBLIOGRAPHY, ETC. NOTE

• Bibliography, etc. note: Includes bibliographical references (p. 49-52).

SUMMARY, ETC.

• Summary, etc.: This study describes the notoungulates and litopterns (endemic South American ungulates) from the Chucal Fauna of northern Chile. Eight species are known to date, including seven notoungulates and one litoptern. The bulk of the toxodontid notoungulate material, including a well-preserved partial skull, is referred to Nesodon imbricatus. A few postcranial elements and a single partial tooth are referred to Adinotherium sp. indet. Poorly preserved dental material may represent a third (indeterminate) toxodontid. Fragmentary dental and postcranial remains are referred to Hegetotherium cf. H. mirabile (Hegetotheriidae). Theosodon sp. indet. (Litopterna: Macraucheniidae) is recorded on the basis of a variety of diagnostic limb bones, but dental remains of this taxon are not yet recorded at Chucal. Three new species of mesoteriid notoungulates are described: Altitypotherium paucidens, Altitypotherium chucalensis, and Eotypotherium chico. The largest, Altitypotherium paucidens, differs from all previously described mesotheriids in the loss of an upper premolar (P3). Altitypotherium chucalensis is represented by an associated skull and mandibles plus postcranial remains. Eotypotherium chico, based on gnathic remains, is the smallest mesotheriid known. Bracketing radioisotopic dates and biostratigraphic correlation argue for referral of the Chucal Fauna to the Santacrucian South American Land Mammal "Age" (late early Miocene). The forms from Chucal are the only mesotheriids known for this temporal interval and also mark the earliest known occurrence of mesotheriines. A phylogenetic analysis places the three taxa from Chucal as early diverging members of the Mesotheriinae, with Eotypotherium chico representing the outgroup to all remaining members of the clade. In the presence and abundance of mesotheriines and in the absence of interatheriids, the Chucal Fauna more closely resembles geographically proximate (but younger) faunas in Bolivia and the Precordillera of northernmost Chile than temporally correlative faunas from southern South America. This pattern indicates significant faunal provinciality in South America during the late early Miocene and suggests that the intermediate latitudes might have been a center of diversification for mesotheriines and potentially other groups of mammals.

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 (1966-1978). Fieldiana Geology New Series No. 1 began June 29, 1979.

SUBJECT ADDED ENTRY--TOPICAL TERM

• Topical term or geographic name as entry element: Notoungulata
• Geographic subdivision: Chile.

SUBJECT ADDED ENTRY--TOPICAL TERM

• Topical term or geographic name as entry element: Litopterna
• Geographic subdivision: Chile.

SUBJECT ADDED ENTRY--TOPICAL TERM

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

SUBJECT ADDED ENTRY--TOPICAL TERM

• Topical term or geographic name as entry element: Ungulates, Fossil
• Geographic subdivision: Chile.

ADDED ENTRY--PERSONAL NAME

• Personal name: Flynn, John J.
• Dates associated with a name: 1955-
• Fuller form of name: (John Joseph),

ADDED ENTRY--PERSONAL NAME

• Personal name: Wyss, André R.

SERIES ADDED ENTRY--UNIFORM TITLE

• Uniform title: Publication (Field Museum of Natural History) ;
• Volume number/sequential designation: 1528.

DATA FIELD 994

• Code a: X0
• Code b: UIU