Abstract
A TUFF for which a 40Ar/39Ar date of 12.18±1.03 Myr has been obtained is located in the lower level of the Bou Hanifia continental formation (= Oued el Hammam), several metres below the famous Hipparion primigenium locality1–3. The tuff forms a continuous layer in the lower part of the continental formation and can be observed on either side of the Oued el Hammam Dam. The Hipparion fossiliferous horizon (Bou Hanifia I) lies in a second deposit of greatly weathered tuffs and has yielded a few micromammal remains. About 15 m above Bou Hanifia I, a second micromammal locality has been discovered (Bou Hanifia II)4.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Suess, M., C. r. hebd. Séanc. Acad. Sci., Paris, 194, 1970–1972 (1932).
Arambourg, C., ibid., 232, 2264–2466 (1951); Publ. Serv. Carte géol. Algérie, 4, 161 (1959).
Cornet, A., 19th int. geol. Congr., Algeria, 1, 33 (1952).
Jaeger, J.-J., Michaux, J., and David, B., C. r. hebd. Séanc. Acad. Sci., Paris, 277, 2477–2480 (1973).
Cita, M. B., Mazzola, G., and Premoli Silva, I., Rc. Ist. Lomb. Sci. Lett., A 102, 166–170 (1968).
Lippolt, H. J., Gentner, W., and Wimmenauer, W., Jh. Geol. Landes. Baden-Württ., 6, 507–538 (1963).
Bishop, W. W., and Pickford, M. H. L., Nature, 254, 186–192 (1975).
Hartenberger, J.-L., Michaux, J., and Thaler, L., Colloque int. Cent. nat. Rech. scient., 163, 503–513 (1967).
Bishop, W. W., Miller, J.-A., and Fitch, F. J., Am. J. Sci., 267, 669–699 (1969).
Biely, A., Ann. Mines Géol., Tunis, 26, 257–261 (1973).
Robinson, P., and Black, C. C., ibid., 26, 445–449 (1973).
Hooijer, D. A., Zool. Verh., Leiden, 142, 1–80 (1975).
Pomel, A., Carte Géol. Algérie, Monographies, Paléontologie, Les Equidés, 44 (1897).
Arambourg, C., Bull. Soc. géol., Fr., 6, 817–827 (1958).
Jaeger, J.-J., thesis, Montpellier Univ. (1975).
Pickford, M., Nature, 256, 279–284 (1975).
Van Couvering, J.-A., and Miller, J. A., Nature, 230, 559–563 (1971).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
AMEUR, R., JAEGER, JJ. & MICHAUX, J. Radiometric age of early Hipparion fauna in North-west Africa. Nature 261, 38–39 (1976). https://doi.org/10.1038/261038a0
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1038/261038a0
This article is cited by
-
Phylogeny and biogeography of African Murinae based on mitochondrial and nuclear gene sequences, with a new tribal classification of the subfamily
BMC Evolutionary Biology (2008)
-
Earliest known Hipparion from Holarctica
Nature (1977)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.
