Jagtia kunradensis, a new genus and species of clawed lobster (Decapoda: Nephropidae) from the Upper Cretaceous (Upper Maastrichtian) Maastricht Formation, The Netherlands

2000 ◽  
Vol 74 (2) ◽  
pp. 224-229 ◽  
Author(s):  
Dale Tshudy ◽  
Ulf Sorhannus
Keyword(s):  
The Netherlands ◽  
Deep Water ◽  
Phylogenetic Relationships ◽  
Upper Cretaceous ◽  
New Genus ◽  
New Genus And Species ◽  
Type Area ◽  
Fossil Form ◽  
Upper Maastrichtian

A new genus and species of clawed lobster, Jagtia kunradensis, is described from the Upper Cretaceous (Upper Maastrichtian) Kunrade Limestone facies of the Maastricht Formation, The Netherlands. Three nephropid lobster genera and at least three species (Oncopareia bredai Bosquet, 1854, sensu Tshudy, 1993, Oncopareia sp. Tshudy, 1993, Hoploparia beyrichi Schlüter, 1862, and Jagtia kunradensis) have now been collected from limestones of the Maastrichtian type area (southeastern Netherlands and northeastern Belgium). Cladistic methods were employed in re-evaluating the phylogenetic relationships of the nephropid lobsters, including Jagtia. These analyses indicate that Jagtia is part of a clade that includes the recent Thymops and Thymopsis. The new genus is the first fossil form to be closely allied with these deep-water genera.

Aldebarania arenitea, a new genus and species of Astropectinidae (Asteroidea; Echinodermata) from the Maastrichtian (Upper Cretaceous) Peedee Formation of North Carolina

1995 ◽  
Vol 69 (2) ◽  
pp. 376-380 ◽  
Author(s):  
Daniel B. Blake ◽  
Keith Sturgeon
Keyword(s):  
North Carolina ◽  
Shallow Water ◽  
Phylogenetic Relationships ◽  
Upper Cretaceous ◽  
New Genus ◽  
Water Environment ◽  
New Genus And Species ◽  
Marine Fauna ◽  
Shallow Water Environment

Aldebarania arenitea (Astropectinidae; Asteroidea; Echinodermata) is described from the Rocky Point Member of the Maastrichtian (Upper Cretaceous) Peedee Formation of North Carolina. A turbulent, shallow-water environment is suggested by sedimentary features, a diverse marine fauna, and the morphology of Aldebarania. Aldebarania appears to be a partial ecological equivalent of living Astropecten and Luidia; however, phylogenetic relationships within the Astropectinidae are unstudied and the origin of similarities is unknown.

A new paguroid from the type Maastrichtian (upper Cretaceous, the Netherlands) and erection of a new family

2017 ◽  
Vol 188 (3) ◽  
pp. 17 ◽  
Author(s):  
René H.B. Fraaije ◽  
Barry W.M. Van Bakel ◽  
John W.M. Jagt
Keyword(s):  
The Netherlands ◽  
Upper Cretaceous ◽  
Natural Sciences ◽  
Morphological Features ◽  
Hermit Crabs ◽  
New Taxon ◽  
Close Resemblance ◽  
New Family ◽  
Type Area ◽  
Upper Maastrichtian

On the basis of a fragmentary carapace a new extinct paguroid, Annuntidiogenes massetispinosus n. sp., is described from the upper Meerssen Member (Maastricht Formation, upper Maastrichtian) of the Maastrichtian type area in the southeast Netherlands. The new taxon represents the fifth and stratigraphically youngest member of this Mesozoic genus that shows a remarkably close resemblance to the extant diogenids Aeropaguristes Rahayu and McLaughlin, 2010 (Rahayu DL, McLaughlin PA. 2010. Areopaguristes, a generic replacement name for Stratiotes Thomson, 1899 (Crustacea: Decapoda: Paguroidea: Diogenidae). Zootaxa 2509: 67–68), Paguristes Dana, 1851 (Dana JD. 1851. Conspectus crustaceorum quae in orbis terrarum circumnavigatione, Carolo Wilkes e classe reipublicae foederatae duce, lexit et descripsit. (Preprint from) Proceedings of the Academy of Natural Sciences, Philadelphia 5: 267–272) and Pseudopaguristes McLaughlin, 2002 (McLaughlin PA. 2002. Pseudopaguristes, a new and aberrant genus of hermit crabs (Anomura: Paguridea: Diogenidae). Micronesica 34(2): 185–199). Morphological features of paguroid carapaces, not previously used by neontologists, form the basis for a further systematic refinement of the Paguroidea, with the erection of a new family, the Calcinidae n. fam.

scholarly journals The cyclic Rørdal Member – a new lithostratigraphic unit of chronostratigraphic and palaeoclimatic importance in the upper Maastrichtian of Denmark

2010 ◽  
Vol 58 ◽  
pp. 89-98
Author(s):  
Finn Surlyk ◽  
Lars Stemmerik ◽  
Morten Ahlborn ◽  
Rikke Harlou ◽  
Bodil W. Lauridsen ◽  
...  
Keyword(s):  
North Sea ◽  
Deep Water ◽  
Upper Cretaceous ◽  
Planktonic Foraminifers ◽  
The North ◽  
Water Wells ◽  
Type Area ◽  
The North Sea ◽  
Early Late ◽  
Upper Maastrichtian

The Maastrichtian chalk of the Danish Basin has been referred to the Tor Formation of the North Sea, but this may not be tenable because this formation in its type area shows a much higher degree of redeposition than the Maastrichtian chalk of the Danish Basin. The onshore succession has not been lithostratigraphically subdivided due to its rather monotonous nature and the widely scattered outcrops. An exception is the uppermost Maastrichtian exposed at Stevns Klint which is been referred to the Sigerslev Member, comprising rather benthos-poor, deep-water pure chalk, and the overlying mound-bedded, bryozoan-rich chalk which is placed in the Højerup Member. In addition, a thin marly chalk bed, the Kjølby Gaard Marl Member, containing Tethyan planktonic foraminifers is known from localities in northern Jylland and from water wells around Køge, eastern Sjælland. The new Rørdal Member is a cyclic chalk-marl unit, about 10 m thick, sandwiched between pure white chalks. It is well exposed in the large Rørdal quarry in Aalborg, and is recognised in boreholes south of Aalborg and in the Stevns-1 and Karlslunde-1 boreholes south of Copenhagen. Coccolith and brachiopod data show that it belongs to the UC20b-cBP nannofossil zone of the North Sea scheme for the Upper Cretaceous Boreal province, and the semiglobularis-humboldt iibrachiopod zone, both indicating the lower upper Maastrichtian. Isotope data show that it represents a distinct early late Maastrichtian cooling event. The member thus has a basinwide distribution and is an important isochronous marker.

scholarly journals Two new genera of Cretaceous dustywings in amber from northern Myanmar (Neuroptera: Coniopterygidae)

2016 ◽  
pp. 1 ◽  
Author(s):  
Michael S. Engel
Keyword(s):  
Upper Cretaceous ◽  
New Genus ◽  
New Genera ◽  
New Genus And Species ◽  
Crown Group ◽  
Labial Palpus ◽  
Head Form

Two new genera and species are added to the fauna of dustywings (Coniopterygidae) preserved in Upper Cretaceous (earliest Cenomanian) amber of northern Myanmar, doubling the described diversity from this deposit.  One genus is of the subfamily Aleuropteryginae and described as Achlyoconis heptatrichia Engel, new genus and species.  This species is noteworthy for the infumate and patterned wings and unique presence of seven prominent setae positioned on thickenings occurring along the length of the forewing media.  Paranimboa litotes Engel, new genus and species, is representative of the subfamily Coniopteryginae and distinctive among Mesozoic groups for the unbranched Rs, among other traits.  In addition, a peculiar larva preserved alongside the holotype of P. litotes is described.  While having a prothoracic and head form similar to aleuropterygines as well as a labial palpus with only two palpomeres, diagnostic for Coniopterygidae, the antenna bears four articles rather than the two present in crown-group dustywings.  A revised key to the genera of Cretaceous Coniopterygidae is provided.

Delgadobius amazonensis—a new genus and species of the subtribe Philonthina from Amazonia (Coleoptera: Staphylinidae: Staphylininae)

Zootaxa ◽  
2012 ◽  
Vol 3568 (1) ◽  
pp. 81 ◽  
Author(s):  
MARIANA CHANI-POSSE ◽  
GUY COUTURIER
Keyword(s):  
Phylogenetic Relationships ◽  
New Genus ◽  
New Genus And Species ◽  
Palm Trees

Delgadobius amazonensis Chani-Posse & Couturier, gen. et sp. nov., a new genus and species of the subtribe Philonthina (tribe Staphylinini) from Amazonia, is described and illustrated. The potential phylogenetic relationships of Delgadobius with other Neotropical genera of Philonthina are discussed. Distributional and bionomic data are also provided. Delgadobius amazonensis is reported in association with four species of palm trees (Arecaceae).

Damnaster tasmani, a new genus and species of Asteoidea (Echinodermata) from New Zealand

1994 ◽  
Vol 8 (6) ◽  
pp. 1397 ◽  
Author(s):  
HES Clark ◽  
DG McKnight
Keyword(s):  
New Zealand ◽  
Deep Water ◽  
New Genus ◽  
New Genus And Species ◽  
The West

Damnaster tasmani, gen. et sp. nov., belonging in the deep-water asteroid family Porcellanasteridae, is described from five stations (nine specimens) to the west of New Zealand, between 35° and 46° S, 156° and 167° E, in depths of 1647 - 4868 m.

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