Skip to main content

Revision of the type species of Acrotreta and related lingulate brachiopods

  • Lars E. Holmer (a1) and Leonid E. Popov (a2)

The poorly known type species of Acrotreta, A. subconica Kutorga, 1848 [=Spondylotreta faceta Gorjansky, 1969], is redescribed and a neotype selected from the lower Arenig (Billingen Stage, Oeland Series) Päite beds in the environs of St. Petersburg (Tosna river), Russia. Acrotreta is also the type of the lingulate brachiopod family Acrotretidae Schuchert, 1893, and order Acrotretida Kuhn, 1949. Four new species are described: A. korynevskii from the upper Tremadoc–lower Arenig, South Ural Mountains; A. tallinnensis from the upper Arenig (Volkhov Stage), Tallinn, northern Estonia; A. nobilis from the Llanvirn (Kunda Stage), Siljan district, Sweden; A. cooperi from the Llandeilo, Alabama, USA. Acrotreta has many features in common with Spondylotreta Cooper, 1956. The type species of the latter, S. concentrica Cooper, 1956, from the Llandeilo Pratt Ferry beds at Pratt Ferry, Alabama, is refigured.

Hide All
Apollonov, M. 1991. Cambrian–Ordovician boundary beds in the USSR. Geological Survey of Canada, Paper 90-9:3345.
Bednarczyk, W. 1959a. On genus Conotreta from the Lower Ordovician of the Holy Cross Mts. Bulletin de l'Academie Polonaise des Sciences, 7:463468.
Bednarczyk, W. 1959b. Four new species of Conotreta from the Upper Tremadocian of the Holy Cross Mts. Bulletin de l'Academie Polonaise des Sciences, 7:509513.
Bednarczyk, W. 1964. Stratygrafia i fauna tremadoku i arenigu (Oelandianu) regionu kieleckiego Gór Świetokryzskich [The stratigraphy and fauna of the Tremadocian and Arenigian (Oelandian) in the Kielce region of the Holy Cross Mountains]. Biuletyn Geologiczny Universitetu Warszawskiego, 4:1216.
Bednarczyk, W., and Biernat, G. 1978. Inarticulate brachiopods from the Lower Ordovician of the Holy Cross Mountains, Poland. Acta Paleontologica Polonica, 23:293316.
Bergström, S. M. 1971. Conodont biostratigraphy of the Middle and Upper Ordovician of Europe and eastern North America. Geological Society of America Memoir, 127:83157.
Bergström, S. M. 1988. On Pander's Ordovician conodonts: distribution and significance of the Prioniodus elegans fauna in Baltoscandia. Senckenbergiana Lethaea, 69(3/4):217251.
Biernat, G. 1973. Ordovician inarticulate brachiopods from Poland and Estonia. Paleontologica Polonica, 28:1116.
Cooper, G. A. 1956. Chazayan and related brachiopods. Smithsonian Miscellaneous Collection, 127:11245.
Davidson, T. 1853. A monograph of the British fossil Brachiopoda. Introduction. Palaeontographical Society Monographs, London, 1:1136.
Dzik, J. 1989. Conodont evolution in high latitudes of the Ordovician. Courier Forschnungs-Institut Senckenberg, 117:128.
Gorjansky, V. J. 1969. Bezzamkovye brakhiopody kembrijskikh i ordovikskikh otlozenij severo-zapada Russkoj platformy [Inarticulate brachiopods of the Cambrian and Ordovician of the northwest Russian Platform]. Ministerstvo Geologii RSFSR, Severo–Zapadnoe Territorialnoe Geologicheskoe Upravlenie, 6:1173.
Gorjansky, V. J., and Popov, L. E. 1985. Morfologiya, sistematicheskoe polozheenie i proiskhozhdenie bezzamkovykh brakhiopod s karbonatnoj rakovinoj [Morphology, systematic position and origin of the inarticulate brachiopods with carbonate shells]. Paleontologicheskij Zhurnal 1985:3, 3–14.
Havlíček, V. 1980. Conotreta Walcott (Brachiopoda) in the Lower Ordovician of Bohemia. Věstnik Ústředního ústavu geologického, 55(5):297299.
Holmer, L. E. 1989. Middle Ordovician phosphatic inarticulate brachiopods from Västergötland and Dalarna, Sweden. Fossils and Strata, 26:1172.
Jaanusson, V. 1982. Ordovician in Dalarna. Paleontological Contributions from the University of Oslo, 295:1542.
Kaljo, D., and Nestor, H. 1990. Field Meeting Estonia 1990. An Excursion Guidebook. Institute of Geology, Estonian Academy of Sciences, 208 p.
Klouček, C. 1919. Novinky z Část krušnohorskych vrstev d1α. IV. Rozpravy České akademie věd a umêni, Praha, 27(38):16.
Korynevski, V. D. 1989. Key sections of the Lower Ordovician of the southern Urals (clastic facies). Scientific Proceedings of the Academy of Sciences of USSR, Ural Branch, Institute of Mineralogy, 67 p.
Krause, F. F., and Rowell, A. J. 1975. Distribution and systematics of the inarticulate brachiopods of the Ordovician carbonate mud mound Meiklejohn Peak, Nevada. The University of Kansas Paleontological Contributions 61, 74 p.
Kuhn, O. 1949. Lehrbuch der Paläozoologie. E. Schweizebartsche Verlagsbuchhandlung. Stuttgart, 326 p.
Kutorga, S. S. 1848. Über die Brachiopoden-Familie der Siphonotretacea. Russich-Kaiserliche Mineralogische Gesellschaft Verhandlungen, 1846:87139.
Lamansky, W. 1905. Die aeltesten silurischen Schichten Russlands (Etage B). Mémoires du Comité Géologique, Nouvelle Série, 20:1203.
Männil, R. 1966. Istoriya razvitiya Baltiyskogo basseyna v ordovike [Evolution of the Baltic during the Ordovician]. Eesti, NSV Teaduste Akadeemia Geoloogia Instituudi, Tallinn, 201 p.
Nazarov, B. B., and Popov, L. E. 1980. Stratigrafiya i fauna kremnisto-karbonatnykh tolshch ordovika Kazakhstana [Stratigraphy and fauna of Ordovician siliceous-carbonate deposits of Kazakhstan]. Trudy Geologicheskogo Instituta Akademiya Nauk SSSR, 331, 190 p.
Popov, L. E.In press. The Cambrian radiation of brachiopods. In Lipps, J. H. and Signor, P. W. (eds.), Origin and Early Evolution of Metazoa. Plenum, New York.
Popov, L. E., Khazanovitch, K. K., Borovko, N. G., Sergeeva, S. P., and Sobolevskaya, R. F. 1989. Opornye razrezy i stratigrafiya kembro–ordovikskoj fosforitonosnoj obolovoj tolshch na severo-zapade Russkoj platformy [The key sections and stratigraphy of the Cambrian–Ordovician phosphate-bearing obolus beds on the north-eastern Russian platform]. AN SSSR, Ministerstvo Geologii SSSR, Nauka, Leningrad, Mezhvedomstvennym stratigraficheskij komitet SSSR, Trudy 18, 222 p.
Proskuryakov, V. 1984. Stratigraphy and composition of Cambrian and Lower Ordovician deposits in the north-west of the Russian Plate, p. 4170. In 27th International Geological Congress, Guidebooks, Itinerary of Excursion 12, North-West Region of Russian Republic, Moscow.
Raymond, P. E. 1916. Expedition to the Ordovician strata of the Baltic Provinces of Russia and Scandinavia, 1914. Part 1. The Correlation of the Ordovician strata of the Baltic Basin with those of Eastern North America. Bulletin of the Museum of Comparative Zoology, Harvard College, 56(3):1286.
Schuchert, C. 1893. A classification of the Brachiopoda. The American Geologist, 11:141167.
Sweet, W. C., and Bergström, S. M. 1962. Conodonts from the Pratt Ferry Formation (Middle Ordovician) of Alabama. Journal of Paleontology, 36:12141252.
Ulrich, E. O., and Cooper, G. A. 1938. Ozarkian and Canadian Brachiopoda. Geological Society of America, Special Paper 13, 323 p.
Walcott, C. D. 1889. Description of a new genus and species of inarticulate brachiopod from the Trenton Limestone. Proceedings of the U.S. National Museum, 12:365366.
Walcott, C. D. 1912. Cambrian Brachiopoda. Monograph of the U. S. Geological Survey, 51, 872 p.
Willard, B. 1928. The brachiopods of the Ottosee and Holston Formations of Tennessee and Virginia. Bulletin of the Museum of Comparative Zoology, Harvard College, 68:255292.
Williams, A., and Rowell, A. J. 1965. Morphology, p. H57H138. In Moore, R. C. (ed.), Treatise on Invertebrate Paleontology, Part H, Brachiopoda. Geological Society of America and University of Kansas, Lawrence.
Wright, A. D. 1963. The fauna of the Portrane Limestone. 1. The inarticulate brachiopods. British Museum (Natural History), Bulletin (Geology), 8:221254.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Paleontology
  • ISSN: 0022-3360
  • EISSN: 1937-2337
  • URL: /core/journals/journal-of-paleontology
Please enter your name
Please enter a valid email address
Who would you like to send this to? *


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed