Stratigraphic Occurrence and Correlation of Early Tertiary Vertebrate Faunas, Trans-Pecos Texas

Date

1977

Authors

Wilson, John Andrew

Journal Title

Journal ISSN

Volume Title

Publisher

Texas Memorial Museum, The University of Texas at Austin

Abstract

Strategraphic positions for the Candelaria local fauna (late Uintan), the Porvenir local fauna (early Chadronian), Little Egypt, and Airstrip local faunas (Chadronian) within the Vieja Group are given. The Porvenir local fauna contains 32 genera in common with Chadronian faunas to the north and six genera in common with the Lapoint fauna. K-AR dates of approximately 38 and 36 million years are below and above the Porvenir local fauna. A mammalian assemblage sufficiently distinct to characterize a Duchesnean age is not present in the Vieja area. It is urged that the first appearance of Mesohippus mark the beginning of the Chadronian age.

Description

Contents: Abstract -- Introduction -- Vieja Area -- Summary and Conclusions -- References

Keywords

Paleontology, vertebrate, North America -- United States -- Texas, Marsupalia, Peratherium, Lepticitidae, Geolabis, Lepictis douglasi, Leptictis wilsoni, Apternodus cf. brevirostris, Primates, Omomyid, Rooneyia viejaensis, Rodentia, Leptotomus leptodus, Leptotomus gigans, Mytonomys gaitania, Microparamys perfossus, Ischryomys blacki, Titanotheriomys veterior, Cylindrodon fontis, Pseudocylindrodon neglectus, Pseudocylindrodon cf. neglectus, Pseudocylindrodon texanus, Pseudocylindrodon cf. texanus, Ardynomys occidentalis, Jaywilsonomys ojinagaensis, Jaywilsonomys pintoensis, Jaywilsonomys aff. pintoensis, Adjidaumo cf. A. minutus, Viejadjidaumo magniscopuli, Autolithomys bounites, Autolithomys cf. A. bounites, Meliakrouniomys wilsoni, Yoderimya lustrorum, Eutypomys inexpectatus, cf. Simimys, Subsumus candelariae, Prolapsus, Carnivora, Harpagolestes, Ischnognathus savagei, Hemipsalodon, Hyaenodon, Miacis, Daphoenus, Daphaenocyon, Hesperocyon, Felid, Perissodactyla, Epihippus cf. E. gracilis, Haplohippus texanus, Mesohippus texanus, Mesohippus, Sthenodectes australia, Menodus bakeri, Teleodus, Dilophodon, Colodon cf hancocki, Colodon, Hyracodon, Amynodon, Megamynodon, Caenopus, Schizotheroides jackwilsoni, Toxotherium cf. T. woodi, Artiodactyla, Brachyhops wyomingensis, Archaeotherium cf. A. mortoni, Protoreodon petersoni, Protoreodon pumilus, Agriochoerus antiquus, Agriochoerus maximus, Bathygenys reevesi, Aclistomycter middletoni, Merycoidodontidae, Merycoidodon, Limnenetes cf. L. platyceps, Prodesmatochoenus meekae, Leptoreodon marshi, Poabromylus kayi, Poabromylus minor, Toromeryx marginatus, Heteromeryx dispar, Oromeryx, Oromerycinae, Eotylopus cf. E. reedi, Hidrosotherium transpecoensis, Poebrotherium franki, Poebrotherium, Hypertragulus heikeni, Leptomeryx defordi, Hypisodus cf H. minimus

LCSH Subject Headings

Citation