Dzirulina (Brachiopoda; Terebratellidina) from California, U.S.A.—Additional record of an Early Cretaceous transatlantic brachiopod genus

1995 ◽  
Vol 69 (5) ◽  
pp. 838-845 ◽  
Author(s):  
Michael R. Sandy ◽  
Michael A. Murphy ◽  
Peter U. Rodda
Keyword(s):  
Early Cretaceous ◽  
Western Europe ◽  
Geographic Range ◽  
Low Latitude ◽  
The Caucasus ◽  
Internal Structures ◽  
Great Valley Group ◽  
Central Atlantic ◽  
Great Valley ◽  
Stratigraphic Range

Investigation of specimens of “Terebratella” ovula Anderson, 1938 from the upper Lower Albian Upper Chickabally Member of the Budden Canyon Formation, Great Valley Group, California has allowed the examination of the species' internal structures by serial sectioning. “Terebratella” ovula Anderson is now referred to the genus Dzirulina Noutsoubidze, 1945. The stratigraphic range of the genus is extended from the Hauterivian–Aptian to the Albian. The geographic range of Dzirulina is increased from central and western Europe, the Caucasus and Georgia of eastern Europe, and northern Zululand, Africa to now include northern California, North America. This represents an additional record of an Early Cretaceous brachiopod genus with a low-latitude, transatlantic distribution, most probably related to dispersal across the opening Central Atlantic Ocean.

Early Cretaceous brachiopods from Mexico and their paleobiogeographic significance

1990 ◽  
Vol 64 (6) ◽  
pp. 942-956 ◽  
Author(s):  
Michael R. Sandy
Keyword(s):  
Early Cretaceous ◽  
Longitudinal Distribution ◽  
Formal Description ◽  
High Latitudes ◽  
American Continent ◽  
Low Latitude ◽  
East Pacific ◽  
Bipolar Distribution ◽  
Central Atlantic ◽  
First Time

The rhynchonellid genus Ptilorhynchia Crickmay and the terebratulid genus Sellithyris Middlemiss are described from Mexico for the first time. This is the first formal description of Sellithyris from the American Continent. Ptilorhynchia (Proteorhynchia) imlayi n. sp. is described from the late Aptian of the La Penã Formation, Coahuila. “Rhynchonella’ durangensis Imlay from the Valanginian of the Carbonera Formation, Durango, is assigned to Ptilorhynchia (Proteorhynchia). “Terebratula’ coahuilensis Imlay from the Valanginian Barril Viejo Formation, Coahuila, is referred to Sellithyris. Sellithyris coahuilensis indicates close links with contemporaneous Valanginian faunas of southern Europe. During the early Early Cretaceous Sellithyris had a fairly restricted latitudinal and broad longitudinal distribution (Tethys and its extension across the opening Central Atlantic Ocean). Ptilorhynchia (Proteorhynchia) in Mexico is significant as the first low-latitude record for Ptilorhynchia. Other Lower Cretaceous records are from northern and southern high latitudes, previously interpreted as a bipolar distribution. It is suggested that Ptilorhynchia had a Boreal-East Pacific distribution with Ptilorhynchia (Proteorhynchia) being a low-latitude Early Cretaceous offshoot. The genus may prove to be pandemic. Proteorhynchia Owen is regarded as a subgenus of Ptilorhynchia.

scholarly journals Discovery of Lebambromyia in Myanmar Cretaceous Amber: Phylogenetic and Biogeographic Implications (Insecta, Diptera, Phoroidea)

Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 354
Author(s):  
Davide Badano ◽  
Qingqing Zhang ◽  
Michela Fratini ◽  
Laura Maugeri ◽  
Inna Bukreeva ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
Late Cretaceous ◽  
Phase Contrast ◽  
First Record ◽  
Geographic Range ◽  
X Ray ◽  
Monophyletic Lineage ◽  
Cladistic Analyses

Lebambromyia sacculifera sp. nov. is described from Late Cretaceous amber from Myanmar, integrating traditional observation techniques and X-ray phase contrast microtomography. Lebambromyia sacculifera is the second species of Lebambromyia after L. acrai Grimaldi and Cumming, described from Lebanese amber (Early Cretaceous), and the first record of this taxon from Myanmar amber, considerably extending the temporal and geographic range of this genus. The new specimen bears a previously undetected set of phylogenetically relevant characters such as a postpedicel sacculus and a prominent clypeus, which are shared with Ironomyiidae and Eumuscomorpha. Our cladistic analyses confirmed that Lebambromyia represented a distinct monophyletic lineage related to Platypezidae and Ironomyiidae, though its affinities are strongly influenced by the interpretation and coding of the enigmatic set of features characterizing these fossil flies.

scholarly journals Local fauna of bumblebees (Hymenoptera: Apidae: Bombus Latr.) in the outskirts of the town of Kandalaksha, southwest Kola Peninsula

2018 ◽  
Vol 18 (2) ◽  
pp. 62-65 ◽  
Author(s):  
Grigory Potapov ◽  
Yulia Kolosova ◽  
Alisa Vlasova
Keyword(s):  
Climate Change ◽  
Kola Peninsula ◽  
Western Europe ◽  
Published Data ◽  
Local Fauna ◽  
The Caucasus ◽  
The Balkans ◽  
European North ◽  
The Town ◽  
Meadow Species

This article presents the results of research focussed on the local bumblebee fauna in the southwest of the Kola Peninsula (near the town of Kandalaksha). In general, if we include the published data, the local fauna have 16 species of bumblebees. Among the species of the present study, the recent record for this region isBombuswurfleniiRadoszkowski, 1860. This species was previously unknown in the European North of Russia. It is typical for mountain ecosystems in Europe (Scandinavia, the mountains of Central and Western Europe, the Balkans, Northern Turkey and the Caucasus). We assume that the record ofB.wurfleniion the Kola Peninsula is the recent appearance of this species in the region. One of the possible reasons for the expansion of this species is climate change. Other species of bumblebees in the local fauna are typical for the region. The species present wide ranges, i.e., Transpalaearctic, Holarctic and one species of West-Central Palaearctic. In the outskirts of Kandalaksha, there are 2 species (B.distinguendusMorawitz, 1869 andB.veteranus(Fabricius, 1793)) which belong to the group of meadow species according to their habitat preference. They are not common for the taiga habitats in the European North of Russia. We can explain their presence in the local fauna by noting the presence of anthropogenic meadow habitats in the studied area.

Encrinurine trilobites from the Silurian Brownsport Formation of Tennessee

1990 ◽  
Vol 64 (6) ◽  
pp. 961-967 ◽  
Author(s):  
Gregory D. Edgecombe
Keyword(s):  
Geographic Range ◽  
West Central ◽  
Stratigraphic Range

Encrinurinae from the Ludlovian Brownsport Formation in west central Tennessee include Balizoma ramskoeldi n. sp., Fragiscutum glebale Campbell, 1967, and Mackenziurus sp. Balizoma ramskoeldi is most similar to Ludlovian species in England and Gotland. The discovery of F. glebale in Tennessee extends the geographic range of this species, known also from the correlative Henryhouse Formation in Oklahoma. Fragiscutum is an eastern/southern Laurentian endemic; Balizoma is of Wenlockian–Přidolían range, with its most widespread Euramerican distribution in the Ludlow. The stratigraphic range of Mackenziurus is extended into the Ludlow.

scholarly journals The birth of a forearc: The basal Great Valley Group, California, USA: REPLY

Geology ◽  
2019 ◽  
Vol 47 (12) ◽  
pp. e494-e494
Author(s):  
Devon A. Orme ◽  
Kathleen D. Surpless
Keyword(s):  
Great Valley Group ◽  
Great Valley

scholarly journals The birth of a forearc: The basal Great Valley Group, California, USA

Geology ◽  
2019 ◽  
Vol 47 (8) ◽  
pp. 757-761 ◽  
Author(s):  
Devon A. Orme ◽  
Kathleen D. Surpless
Keyword(s):  
North America ◽  
Detrital Zircon ◽  
Forearc Basin ◽  
Early Stages ◽  
Structural Style ◽  
Basin Development ◽  
Great Valley Group ◽  
Extensional Model ◽  
Great Valley

AbstractThe Great Valley basin of California (USA) is an archetypal forearc basin, yet the timing, structural style, and location of basin development remain controversial. Eighteen of 20 detrital zircon samples (3711 new U-Pb ages) from basal strata of the Great Valley forearc basin contain Cretaceous grains, with nine samples yielding statistically robust Cretaceous maximum depositional ages (MDAs), two with MDAs that overlap the Jurassic-Cretaceous boundary, suggesting earliest Cretaceous deposition, and nine with Jurassic MDAs consistent with latest Jurassic deposition. In addition, the pre-Mesozoic age populations of our samples are consistent with central North America sources and do not require a southern provenance. We interpret that diachronous initiation of sedimentation reflects the growth of isolated depocenters, consistent with an extensional model for the early stages of forearc basin development.

Lamottia (Favositida, Tabulata) from the Decorah Formation (Kirkfieldian, Ordovician) of Iowa

1988 ◽  
Vol 62 (3) ◽  
pp. 424-426
Author(s):  
Jeffrey C. Edwards
Keyword(s):  
New York ◽  
Thin Section ◽  
Geographic Range ◽  
Upper Ordovician ◽  
North Central ◽  
The North ◽  
Tabulate Coral ◽  
Longitudinal Pattern ◽  
Stratigraphic Range ◽  
Diagenetic Feature

The early tabulate coral Lamottia heroensis has been identified from the Ion Member of the Decorah Formation (Upper Ordovician) in northeast Iowa. This extends the stratigraphic range of this species upward from Lower Chazyan to Kirkfieldian, and extends the geographic range from the Vermont-New York border area to include the north-central Midcontinent. Thin section and SEM studies strongly support the contention that the longitudinal pattern of alternating light and dark bands observed in corallite walls reflects a primary structural grain rather than a secondary diagenetic feature.

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