Topic
Cyclothyris
About: Cyclothyris is a research topic. Over the lifetime, 14 publications have been published within this topic receiving 86 citations.
Papers
1 Jun 1968
TL;DR: In this article, a newly discovered brachiopod fauna, consisting of Burrirhynchia leightonensis, Cyclothyris mirabilis and Modestella festiva, is described and compared with that of the Shenley Limestone (Lower Albian) of Leighton Buzzard, Bedfordshire, the only locality from which these species have previously been recorded.
Abstract: Summary The stratigraphy of the Melton Carstone is outlined and related to exposures to the north and south. A newly discovered brachiopod fauna, consisting of Burrirhynchia leightonensis, Cyclothyris mirabilis and Modestella festiva, is described and compared with that of the Shenley Limestone (Lower Albian) of Leighton Buzzard, Bedfordshire, the only locality from which these species have previously been recorded. B. leightonensis is recorded from the Gault-Lower Greensand junction beds of Wereham Fen House, Norfolk. The ammonite Dimorphoplites cf. hilli, of early Middle Albian age, is recorded from the Melton Red Chalk, and it is concluded that the underlying Carstone is of Lower Albian age.
15 citations
1 Jan 2001
TL;DR: The internal structures observed in this study allow us to remove some species from the genus Cretirhynchia and to split the genus into four subgenera, and a new genus, related to the genus Cyclothyris M'COY, 1844 has been erected.
Abstract: The rhynchonellid brachiopod genus Cretirhynchia PETTITT, 1950 was in need of revision. Representatives of this genus together with the original material studied by PETTITT in 1950 and 1954 were reviewed. Transverse serial sections were made and the internal structures observed in this study allow us to remove some species from the genus Cretirhynchia and to split the genus into four subgenera. A new species and a new subspecies of Cretirhynchia are described here. In addition a new genus, related to the genus Cyclothyris M'COY, 1844 has been erected.
13 citations
TL;DR: The asymmetric rhynchonellide brachiopod Cyclothyris? globata (ARNAUD, 1877) has a large distribution in the Coniacian, Santonian and Campanian outcrops of the western Tethys.
Abstract: The asymmetric rhynchonellide brachiopod Cyclothyris? globata (ARNAUD, 1877)
has a large distribution in the Coniacian, Santonian and Campanian outcrops
of the western Tethys. The species has also been identified in Guca, (Vardar
Zone, western Serbia), where it occurs together with the capillate
terebratuloid “Terebratula” sp. (gen. et sp. nov.). In addition to Serbia,
this brachiopod association is found in many localities of northeastern
Bulgaria (Shumen Formation). In older literature, in Romania and Bulgaria,
“Terebratula” sp. (gen. et sp. nov.) was confused with the Late Maastrichtian
Terebratulina striata (WAHLENBERG, 1821). The present microfaunal study based
on planktonic foraminifera showed that the age of the beds with Cyclothyris?
globata and “Terebratula” sp. (gen. et sp. nov.) in Guca may be dated as
Lowermost Campanian, i.e., the Santonian/Campanian boundary.
10 citations
TL;DR: In this paper, the external and internal features, microstructure, and distributions of Coniacian rhynchonellides from the Northern Castilian Platform (Northern Spain) have been studied.
10 citations
Journal Article•
TL;DR: Cyclothyris americana Cooper is recorded for the first time from the Texas Lower Cretaceous (Glen Rose Formation, probably lower Albian) in Hays County Lamellaerhynchia viae n sp is described from the Main Street Formation (probably basal Cenomanian) in the Fort Worth and Waco areas.
Abstract: Cyclothyris americana Cooper is recorded for the first time from the Texas Lower Cretaceous (Glen Rose Formation, probably lower Albian) in Hays County Lamellaerhynchia viae n sp is described from the Main Street Formation (probably basal Cenomanian) in the Fort Worth and Waco areas Relationship of the two genera is discussed; Lamellaerhynchia is probably the direct ancestral form Cyclothyris is interpreted as an inhabitant of shallow, rough water
9 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2020 | 2 |
| 2017 | 1 |
| 2010 | 2 |
| 2006 | 1 |
| 2005 | 1 |