The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda)—a synopsis

Zootaxa ◽  
2021 ◽  
Vol 4902 (1) ◽  
pp. 1-81
Author(s):  
MATHIAS HARZHAUSER
Keyword(s):  
North Sea ◽  
Geographic Distribution ◽  
Fossil Record ◽  
Middle Eocene ◽  
Critical Evaluation ◽  
Species Level ◽  
Extensive Literature ◽  
Ne Atlantic ◽  
The North ◽  
Stratigraphic Ranges

Evolutionary history, diversity and (paleo)geographic distribution of Cainozoic to present-day species of the Trochidae subfamilies Cantharidinae and Trochinae are discussed based on an extensive literature survey. In total, 393 species-level taxa, assigned to 24 genera and subgenera, are listed from the NE Atlantic, the E Atlantic, the North Sea, the (Proto)-Mediterranean Sea, the Central Paratethys Sea and the Eastern Paratethys Sea. Short diagnosis and subjective and objective junior synonyms for genus-level taxa are given. Stratigraphic ranges and geographic distribution are listed for species-level taxa.                The European fossil record suggests a first major radiation during the middle Eocene and a second diversity pulse during the Miocene, when most extant genera were already present. At the species level, however, the present-day fauna is geologically very young, originating during the Pleistocene and Holocene. Overall, no convincing correlation of evolution and diversity of European Cantharidinae and Trochinae with major geodynamic events (e.g. Tethys Closure) can be observed. An exception is the somewhat overlooked spectacular radiation of Cantharidinae following the hydrological isolation of the Paratethys Sea during the late Miocene. The critical evaluation of the fossil record provides anchor points to test molecular phylogenies. A major discrepancy between both approaches appears only for Jujubinus, which suggests that Paleocene species have to be excluded from the genus.                Gibbuliculus nov. gen. is introduced as new genus for a group of Oligocene to Pleistocene species, placed so far in “Colliculus” sensu auctores non Monterosato, 1888. Anceps siminescui nov. nom, Gibbuliculus saccoi nov. nom, Gibbula tavanii nov. nom., Gibbula s.l. lovellreevei nov. nom. and Gibbula s.l. steiningeri nov. nom. are proposed as new names for the preoccupied Trochus semistriatus Siminescu & Barbu, 1940, Gibbula protumida Sacco, 1896, Gibbula minima Tavani, 1939, Trochus (Gibbula) reevei Harmer, 1923 and Trochus amedei bicincta Schaffer, 1912. 

scholarly journals Demersal fish biodiversity: species-level indicators and trends-based targets for the Marine Strategy Framework Directive

2012 ◽  
Vol 69 (10) ◽  
pp. 1789-1801 ◽  
Author(s):  
Simon P. R. Greenstreet ◽  
Axel G. Rossberg ◽  
Clive J. Fox ◽  
William J. F. Le Quesne ◽  
Tom Blasdale ◽  
...  
Keyword(s):  
North Sea ◽  
Demersal Fish ◽  
Species Level ◽  
Marine Strategy Framework Directive ◽  
The North ◽  
Fish Biodiversity ◽  
Environmental Status ◽  
The North Sea ◽  
Good Environmental Status ◽  
Species Specific

Abstract Greenstreet, S. P. R., Rossberg, A. G., Fox, C. J., Le Quesne, W. J. F., Blasdale, T., Boulcott, P., Mitchell, I., Millar, C., and Moffat, C. F. 2012. Demersal fish biodiversity: species-level indicators and trends-based targets for the Marine Strategy Framework Directive. – ICES Journal of Marine Science, 69: 1789–1801. The maintenance of biodiversity is a fundamental theme of the Marine Strategy Framework Directive. Appropriate indicators to monitor change in biodiversity, along with associated targets representing “good environmental status” (GES), are required to be in place by July 2012. A method for selecting species-specific metrics to fulfil various specified indicator roles is proposed for demersal fish communities. Available data frequently do not extend far enough back in time to allow GES to be defined empirically. In such situations, trends-based targets offer a pragmatic solution. A method is proposed for setting indicator-level targets for the number of species-specific metrics required to meet their trends-based metric-level targets. This is based on demonstrating significant departures from the binomial distribution. The procedure is trialled using North Sea demersal fish survey data. Although fisheries management in the North Sea has improved in recent decades, management goals to stop further decline in biodiversity, and to initiate recovery, are yet to be met.

Bryozoans from the Murfreesboro and Pierce Limestones (Early Black Riveran, Middle Ordovician), Stones River Group, of Central Tennessee

1985 ◽  
Vol 59 (S15) ◽  
pp. 1-42 ◽  
Author(s):  
Olgerts L. Karklins
Keyword(s):  
New York ◽  
North America ◽  
Geographic Distribution ◽  
Species Level ◽  
Invertebrate Fauna ◽  
Middle Ordovician ◽  
Stratigraphic Ranges

The Murfreesboro Limestone and the succeeding Pierce Limestone (Black Riveran, Middle Ordovician) of the Stones River Group, the oldest rocks exposed in central Tennessee, contain a fossil invertebrate fauna including bryozoans. Bryozoans are relatively scarce in the Murfreesboro Limestone but are abundant in the overlying Pierce Limestone. The bryozoan fauna includes the cryptostomes, Escharopora, Graptodictya, Pachydictya, Phylloporina, Stictopora, Stictoporella, Trigonodictya, Ulrichostylus; the trepostomes Amplexopora, Batostoma, Hemiphragma, Nicholsonella, Parvohallopora; and the cystoporates Ceramophylla and Constellaria. These bryozoans are the oldest known in Tennessee and are the only early Black Riveran assemblage in North America described at the species level. Species of Nicholsonella, Pachydictya, and Stictopora in the Murfreesboro and species of Constellaria and Phylloporina? in the Pierce are closely related to those found in rocks of Chazyan age in New York and Vermont. Species of Ceramophylla, Escharopora, and Trigonodictya in the Pierce Limestone of central Tennessee are decidedly similar to species found in Black Riveran strata of New York. The stratigraphic ranges, geographic distribution, and taxonomy of previously described species from Tennessee are updated.

scholarly journals The Big Naked-backed Bat, Pteronotus gymnonotus, Chiroptera, Mormoopidae, in its northernmost geographic distribution range

Therya ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 449-459
Author(s):  
Ricardo Lopez-Wilchis ◽  
Aline Méndez-Rodríguez ◽  
Javier Juste ◽  
Juan Luís García-Mudarra ◽  
Fernando Salgado-Mejia ◽  
...  
Keyword(s):  
Tropical Forests ◽  
Geographic Distribution ◽  
Species Level ◽  
Distribution Range ◽  
Morphological Data ◽  
Transitional Area ◽  
The North ◽  
The Pacific ◽  
Gallery Forests ◽  
Scientific Collections

The Big Naked-backed Bat, Pteronotus gymnonotus, is one of the 15 species currently recognized of this genus, with relatively few specimens in scientific collections, besides being poorly studied.  It has a geographical distribution spanning from  México through Central America and reaching Perú and Brazil, in which it occupies a variety of habitats from desert to tropical forests below 400 meters above sea level.  Here, we report the records that demonstrate its presence, and data about its natural history in southeastern  México, the northernmost part of its geographic distribution range.  Between June 2002 and July 2018, we captured specimens in 44 bat roosts located in southeastern  México, including the Parque Estatal Agua Blanca, Macuspana, Tabasco; Grutas de Martínez de la Torre, Matías Romero Avendaño, Oaxaca; and in Cueva de Villa Luz, Tapijulapa, Tabasco.  In the three locations mentioned, we recorded the occurrence of P. gymnonotus individuals, whose taxonomic identification at species level was corroborated by both morphological data and genetic analyses.  Previously, the only records of P. gymnonotus in  México were from only four specimens scattered across time, so these new recorded locations confirm the presence of this species in the country.  In addition to this, in Agua Blanca State Park and Villa Luz Cave we found a reproductive resident population.  The record from Grutas de Martínez de la Torre is located in the middle of the Tehuantepec Isthmus, a well known biogeographical barrier for many taxa in the transitional area to the Pacific lowland’s region.  We suggest that the occurrence of P. gymnonotus in México is also associated with large remnants of evergreen and gallery forests, located in the lowland areas along the Gulf of  México and in the north and east of the Tehuantepec Isthmus.

Context

1999 ◽  
Author(s):  
Alan Graham
Keyword(s):  
Water Temperature ◽  
Sea Level ◽  
Middle Eocene ◽  
Extensive Literature ◽  
Ocean Bottom ◽  
Sources Of Information ◽  
Sea Level Changes ◽  
The North ◽  
Temperature Records ◽  
Forcing Mechanisms

The interaction between vegetation and the environment over time is one of the most complex of the Earth’s integrated systems. In addition to the direct methodologies of paleopalynology and paleobotany, there are other techniques that provide independent sources of information for interpreting this interaction. These include paleotemperature analysis, sea-level changes, and faunal history. The first two are also forcing mechanisms as discussed in Chapter 2, but for this survey the summary curves can also serve as convenient context information. Each is a vast subject with an extensive literature, and all are presently generating considerable discussion. For paleotemperature analysis, unsettled issues include the extent of temperature change in equatorial waters during the Early and Middle Tertiary, which would affect the poleward transport of heat by conveyer-belt mechanisms. Estimates range from surface waters as warm or warmer than the present to considerably cooler. For the Neogene, CLIMAP estimates based on the ecology of coccolithophores, diatoms, radiolarians, and especially foraminifera are that temperatures in the tropics did not cool significantly; modeling results, terrestrial paleontological evidence, and new Barbados coral data suggest they cooled by ~5°C. There is uncertainty as to when glaciations began on Antarctica; recent estimates range from the Early Eocene to late Middle Eocene to Middle Oligocene (45-35 Ma; Birkenmajer, 1990; Leg 119 Shipboard Scientific Party, 1988). This affects interpretation of 18O values during the Paleogene because they could reflect temperature alone or could be due to ocean water temperature and ice volume changes. Another challenge is to unravel the extent to which benthic temperature records track insolation-induced changes in water temperature versus new thresholds in ocean bottom-water circulation. Discussions of sea-level fluctuation are presently focused on their causes during the preglacial Early Cenozoic. In faunal history the timing of the North American Land Mammal Ages (NALMAs) or provincial ages are being revised. For vegetational history much of the older literature describes events in terms of geofloras, but this conceptual context, at minimum, requires substantial renovation, and the boreotropical hypothesis is emerging as an alternative for envisioning biotic events in the high northern latitudes.

New records of giant campanilid gastropods (Mollusca) from the southern North Sea Basin: implications for Eocene and Quaternary palaeogeography

2013 ◽  
Vol 92 (2-3) ◽  
pp. 159-164
Author(s):  
F.P. Wesselingh ◽  
A.C. Janse ◽  
M. Vervoenen ◽  
F.A.D. van Nieulande
Keyword(s):  
North Sea ◽  
New Records ◽  
Middle Eocene ◽  
Geological Time ◽  
Southeastern Part ◽  
Southern North Sea ◽  
The North ◽  
The North Sea ◽  
Area North ◽  
The Uk

AbstractThree specimens of the large-sized Eocene campanilid gastropod genus Campanile have been dredged from the modern sea floor in the Bruine Bank area (North Sea, Dutch sector). The material is identified here as Campanile parisiense rarinodosum, a subspecies hitherto unknown from the North Sea Basin. All three shells are strongly abraded, reflecting their secondary derivation. The new finds suggest that fossiliferous strata of probably late Lutetian (middle Eocene) age are represented in the southern North Sea Basin, situated most likely in the southeastern part of the UK sector. The present material of Campanile must have been reworked into the Dutch sector via Quaternary rivers. The occurrence of Campanile parisiense rarinodosum would indicate close biogeographic ties between the North Sea and the western French Atlantic basins during the late Lutetian. These new records thus shed light on the palaeogeography of the area during two widely separated geological time slices.

First evidence of a new spawning stock of Illex coindetii in the North Sea (NE-Atlantic)

2020 ◽  
Vol 221 ◽  
pp. 105384 ◽  
Author(s):  
Daniel Oesterwind ◽  
Bianca T.C. Bobowski ◽  
Anika Brunsch ◽  
Vladimir Laptikhovsky ◽  
Ralf van Hal ◽  
...  
Keyword(s):  
North Sea ◽  
Ne Atlantic ◽  
The North ◽  
Spawning Stock ◽  
The North Sea

scholarly journals Significant taxon sampling gaps in DNA databases limit the operational use of marine macrofauna metabarcoding

2020 ◽  
Vol 50 (5) ◽  
Author(s):  
Jon Thomassen Hestetun ◽  
Einar Bye-Ingebrigtsen ◽  
R. Henrik Nilsson ◽  
Adrian G. Glover ◽  
Per-Otto Johansen ◽  
...  
Keyword(s):  
North Sea ◽  
Large Scale ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Species Level ◽  
Case Scenario ◽  
Species Identity ◽  
The North ◽  
The North Sea ◽  
Significant Effort

Abstract Significant effort is spent on monitoring of benthic ecosystems through government funding or indirectly as a cost of business, and metabarcoding of environmental DNA samples has been suggested as a possible complement or alternative to current morphological methods to assess biodiversity. In metabarcoding, a public sequence database is typically used to match barcodes to species identity, but these databases are naturally incomplete. The North Sea oil and gas industry conducts large-scale environmental monitoring programs in one of the most heavily sampled marine areas worldwide and could therefore be considered a “best-case scenario” for macrofaunal metabarcoding. As a test case, we investigated the database coverage of two common metabarcoding markers, mitochondrial COI and the ribosomal rRNA 18S gene, for a complete list of 1802 macrofauna taxa reported from the North Sea monitoring region IV. For COI, species level barcode coverage was 50.4% in GenBank and 42.4% for public sequences in BOLD. For 18S, species level coverage was 36.4% in GenBank and 27.1% in SILVA. To see whether rare species were underrepresented, we investigated the most commonly reported species as a separate dataset but found only minor coverage increases. We conclude that compared to global figures, barcode coverage is high for this area, but that a significant effort remains to fill barcode databases to levels that would make metabarcoding operational as a taxonomic tool, including for the most common macrofaunal taxa.

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