Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-05T09:26:31.222Z Has data issue: false hasContentIssue false
  • English
  • Français

Notes on the Cheiruracea and Phacopacea

Published online by Cambridge University Press:  01 May 2009

J. T. Temple
J. T. Temple
Affiliation:
Department of Geology, Birkbeck College, London.
Get access Rights & Permissions [Opens in a new window]

Abstract

The cephalic characters which the post-Cambrian trilobite families Encrinuridae, Pliomeridae, Cheiruridae, and Phacopidae have in common are discussed, together with others which illustrate the distinctness of the Phacopidae. The importance of growth-rate studies is emphasized, particularly with reference to the frontal lobe of the glabella. The Calymenidae share most of the features common to the Cheiruracea and Phacopacea, and are considered to be closely related to them, and the Odontppleuridae also share certain features. The possibly neotenous origin of the Cheiruracea and Phacopacea is discussed.

Type
Articles
Information
Geological Magazine , Volume 93 , Issue 5 , October 1956 , pp. 418 - 430
Copyright
Copyright © Cambridge University Press 1956

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Barrande, J., 1852. Systême silurien du Centre de la Bohême … Vol. I.Trilobites. Prague and Paris.Google Scholar
Barrande, J. 1872. Systême silurien du Centre de la Bohême … Vol. I.Trilobites. Supplément.Google Scholar
Beecher, C. E., 1897. Outline of a Natural Classification of the Trilobites. Amer. Journ. Sci., ser. 4, iii, 89–106, 181–207.CrossRefGoogle Scholar
Henningsmoen, G., 1951. Remarks on the Classification of Trilobites. Norsk geol. Tidsskr., xxix, 174–217.Google Scholar
Hintze, L. F., 1953. Lower Ordovician Trilobites from Western Utah and Eastern Nevada. Bull. Utah Geol. Min. Surv., no. 48.Google Scholar
Hupé, P., 1953. Classe des Trilobites, in J. Piveteau, Traité de Paléontohgie, iii. Masson et Cie, Paris.Google Scholar
Kielan, Z., 1955. O nowym trylobicie z rodzaju Ceraurus … Acta geol. polon., v, 215–240.Google Scholar
Öpik, A., 1937. Trilobiten aus Estland. Acta Univ. Dorpat. (Tartu.), A, xxxii, no. 3.Google Scholar
Rasetti, F., 1954. Phylogeny of the Cambrian trilobite family Catillicephalidae and the ontogeny of Welleraspis. Journ. Paleont., xxviii, 599–612.Google Scholar
Richter, R., 1932. Crustacea (Paläontologie), in Handwörterbuch der Naturwissenschaften, 2nd ed., ii, Jena.Google Scholar
Richter, R. and E., , 1926. Beiträge zur Kenntnis devonischer Trilobiten. IV. Die Trilobiten des Oberdevons. Abh. Preuss. geol. Landesanst., N.F., xcix.Google Scholar
Rosenstein, E., 1941. Die Encrinurus-Arten des estländischen Silurs. Publ. geol. Instn. Univ. Tartu, no. 62.Google Scholar
Ross, R. J., 1951 a. Stratigraphy of the Garden City Formation in North-eastern Utah, and Its Trilobite Faunas. Bull. Peabody Mas., no. 6.Google Scholar
Ross, R. J. 1951 b. Ontogenies of three Garden City (early Ordovician) trilobites. Journ. Paleont., xxv, 578–586.Google Scholar
Salter, J. W., 1853. Figures and Descriptions illustrative of British Organic Remains. Decade VII. Mem. Geol. Surv. U.K.Google Scholar
Salter, J. W. 1864. A Monograph of British Trilobites. Part I. Palaeontogr. Soc. [Monogr.] for 1862.CrossRefGoogle Scholar
Schmidt, F., 1881. Revision der Ostbaltischen Silurischen Trilobiten … Abth. I. Mém. Acad. Sci. St. Petersb., ser. 7, xxx.Google Scholar
Stubblefield, C. J., 1936. Cephalic sutures and their bearing on current classifications of trilobites. Biol. Rev., xi, 407–440.CrossRefGoogle Scholar
Temple, J. T., 1952. The Ontogeny of the Trilobite Dalmanitina olini. Geol. Mag., lxxxix, 251–262.CrossRefGoogle Scholar
Warburg, E., 1925. The Trilobites of the Leptaena Limestone in Dalarne … Bull. geol. Instn Univ. Upsala, xvii, 1–446.Google Scholar
Whittington, H. B., 1950. Sixteen Ordovician genotype trilobites. Journ. Paleont., xxiv, 531–565.Google Scholar
Whittington, H. B. 1954. Status of Invertebrate Paleontology, 1953 VI. Arthropoda: Trilobita. Bull. Mus. Comp. Zool. Harv., cxii, 193–200.Google Scholar
Whittington, H. B. and Evitt, W. R., 1954. Silicified Middle Ordovician Trilobites. Mem. Geol. Soc. Amer., no. 59.Google Scholar