New Neritidae from southwestern North America

1986 ◽  
Vol 60 (3) ◽  
pp. 636-655 ◽  
Author(s):  
Alan J. Cushing Woods ◽  
L. R. Saul
Keyword(s):  
New Species ◽  
North America ◽  
Early Cretaceous ◽  
Late Cretaceous ◽  
Baja California ◽  
Middle Eocene ◽  
Type Locality ◽  
Early Tertiary ◽  
Molluscan Fauna ◽  
A New Species

In southwestern Baja California Norte a new species of Early Tertiary Tethyan gastropod, Velates, V. vizcainoensis n. sp., occurs with a previously unknown intertidal molluscan fauna suggestive of an unprotected coastline of probable Paleocene age. Comparison of Velates vizcainoensis n. sp. to other forms previously assigned to Velates from southwestern North America suggests that “Nerita” cuneata Gabb of Late Cretaceous age probably belongs in Neritina (Dostia), as do N. (D.) aff. N. (D.) cuneata and N. (D.) escondita n. sp.Velates is probably derived from typical Otostoma and is an early Tertiary genus. Velates californicus Vokes, although originally described as being from the Llajas Formation of middle Eocene age, is from the upper Santa Susana Formation and probably is of late Paleocene age at its type locality.Two other neritid gastropods are present in the fauna with Velates vizcainoensis; namely, Corsania (Januncia) Janus n. subgen., n. sp. and Nerita (Theliostyla) n. sp.(?). Corsania Vidal, 1917, is a genus distinct from Otostoma and ranges from Early Cretaceous to Paleocene. Januncia n. subgen. has a Tethyan distribution and ranges from Maastrichtian through Paleocene.

Zingiberopsis, a fossil genus of the ginger family from Late Cretaceous to early Eocene sediments of Western Interior North America

1978 ◽  
Vol 56 (9) ◽  
pp. 1136-1152 ◽  
Author(s):  
Leo J. Hickey ◽  
Rayma Kempinsky Peterson
Keyword(s):  
New Species ◽  
North America ◽  
Late Cretaceous ◽  
New Combination ◽  
Early Eocene ◽  
Clear Trend ◽  
Late Paleocene ◽  
Fossil Genus ◽  
A New Species

Zingiberopsis attenuata Hickey and Peterson is a new species of monocotyledon from the Paleocene Paskapoo Formation of Alberta. Leaves of this species with their parallel veins grouped into three size sets are intermediate between the Late Cretaceous Zingiberopsis magnifolia (Knowlton) Hickey, new combination, with four discrete sets and Zingiberopsis isonervosa Hickey, of late Paleocene and early Eocene age, with only one set. Zingiberopsis has large, elliptic to ovate leaves with a costa composed of a number of concurrent strands, a set of parallel veins emerging at low angles from the costa, and relatively distantly spaced transverse veins running between adjacent parallel veins. Morphology of the genus matches that of Alpinia in the Zingiberaceae except for greater irregularity of the parallel vein set at and near their origin on the costa and the lack of any evidence of a ligule on the petiole as in Alpinia. Species of Zingiberopsis demonstrate a clear trend toward loss of the wider parallel vein subsets over the approximately 20-million-year range of the genus. In addition, the overlooked character of the arrangement of the parallel vein subsets across the width of the leaf may have potential in the taxonomic determination of monocotyledonous leaves.

scholarly journals Formica species (Hymenoptera, Formicidae, Formicinae) in late Eocene Rovno amber

2021 ◽  
Vol 82 ◽  
pp. 237-251
Author(s):  
Alexander G. Radchenko ◽  
Evgeny E. Perkovsky ◽  
Dmitry V. Vasilenko
Keyword(s):  
New Species ◽  
North America ◽  
Middle Eocene ◽  
Late Eocene ◽  
Rovno Amber ◽  
Early Eocene ◽  
Incertae Sedis ◽  
A New Species ◽  
Maxillary Palps

A new species, Formica ribbeckei Radchenko & Perkovsky, sp. nov., is described based on four workers from late Eocene Rovno amber (Ukraine). It most resembles F. flori Mayr, 1868 but differs from the latter mainly by the 5-segmented maxillary palps with the preapical segment subequal in length to the apical one, and by the shorter first funicular segment. Fossil F. luteola Presl, 1822, F. trigona Presl, 1822, F. macrognatha Presl, 1822 and F. quadrata Holl, 1829 are considered incertae sedis in Formicidae. Thus, ten valid Formica Linnaeus, 1758 species (including F. ribbeckei) are known now from late Eocene European ambers. The diversity of Formica in the early and middle Eocene deposits of Eurasia and North America is considered. It is assumed that the genus Formica most likely arose in the early Eocene.

scholarly journals New nephropid lobster (Decapoda: Astacidea) from the late Campanian of California; extending the range of Pacific coastal fossil lobster occurrences

2021 ◽  
Vol 73 (3) ◽  
pp. A241220
Author(s):  
Rodney M. Feldmann ◽  
Carrie E. Schweitzer
Keyword(s):  
New Species ◽  
North America ◽  
Late Cretaceous ◽  
Fossil Record ◽  
San Diego ◽  
Pacific Coast ◽  
San Diego County ◽  
The Third ◽  
The Pacific ◽  
A New Species

Two well preserved specimens of nephropid lobster from the Late Cretaceous (late Campanian) Point Loma Formation in San Diego County, California, form the basis of description of a new species of Hoploparia. The occurrence represents the southernmost fossil record of macrurans along the Pacific coast of North America and it is only the third fossil lobster from California.

First record of the family Ringiculidae (Gastropoda) from the Middle Tertiary of Antarctica

1990 ◽  
Vol 64 (3) ◽  
pp. 373-376 ◽  
Author(s):  
William. J. Zinsmeister ◽  
Jeffrey D. Stilwell
Keyword(s):  
New Species ◽  
New Zealand ◽  
Late Cretaceous ◽  
First Record ◽  
Late Eocene ◽  
Late Mesozoic ◽  
Early Tertiary ◽  
The Pacific ◽  
The Family ◽  
A New Species

A new species of the late Mesozoic–Cenozoic family Ringiculidae (Ringicula (Ringicula) cockburnensis n. sp.) is described from basal glauconitic beds of late Eocene age of Cockburn Island, Antarctica, and is the first reported occurrence of the family Ringiculidae from the continent of Antarctica. Ringicula (R.) cockburnensis n. sp. most closely resembles R. castigata from the middle Oligocene Duntroonian Stage of New Zealand and provides further support for the strong provinciality (Weddellian Province) that existed along the southern margin of the Pacific during the Late Cretaceous and early Tertiary.

scholarly journals The earliest mammal of the European Paleocene: The multituberculateHainina

2000 ◽  
Vol 74 (4) ◽  
pp. 701-711 ◽  
Author(s):  
P. Peláez-Campomanes ◽  
N. López-Martínez ◽  
M.A. Álvarez-Sierra ◽  
R. Daams
Keyword(s):  
New Species ◽  
Early Cretaceous ◽  
Late Cretaceous ◽  
Mass Extinction ◽  
Late Paleocene ◽  
The Family ◽  
Extinction Event ◽  
Masticatory System ◽  
Mass Extinction Event ◽  
A New Species

A new species of multituberculate mammal,Hainina pyrenaican. sp. is described from Fontllonga-3 (Tremp Basin, Southern Pyrenees, Spain), correlated to the later part of chron C29r just above the K/T boundary. This taxon represents the earliest European Tertiary mammal recovered so far, and is related to otherHaininaspecies from the European Paleocene. A revision of the species ofHaininaallows recognition of a new species,H. vianeyaen. sp. from the Late Paleocene of Cernay (France). The genus is included in the family Kogaionidae Rãdulescu and Samson, 1996 from the Late Cretaceous of Romania on the basis of unique dental characters. The Kogaionidae had a peculiar masticatory system with a large, blade-like lower p4, similar to that of advanced Ptilodontoidea, but occluding against two small upper premolars, interpreted as P4 and P5, instead of a large upper P4. The endemic European Kogaionidae derive from an Early Cretaceous group with five premolars, and evolved during the Late Cretaceous and Paleocene. The genusHaininarepresents a European multituberculate family that survived the K/T boundary mass extinction event.

A new species of Dinothenarus (Coleoptera: Staphylinidae) from Mexico

Zootaxa ◽  
2008 ◽  
Vol 1851 (1) ◽  
pp. 51
Author(s):  
QUIYARI J. SANTIAGO-JIMÉNEZ
Keyword(s):  
New Species ◽  
North America ◽  
Baja California ◽  
Biological Data ◽  
Range Extension ◽  
Central Mexico ◽  
High Mountains ◽  
Key To Species ◽  
A New Species

Dinothenarus (s. str.) amisadaiae Santiago-Jiménez, sp. n. is described based on specimens from Cofre de Perote Volcano, Veracruz. The habitus and aedeagus are illustrated and distributional and biological data provided. A key to species of Dinothenarus (s. str.) of America is also provided. The discovery of this species in the high mountains of central Mexico represents a significant range extension for the genus Dinothenarus, previously known in Mexico only from Baja California, and especially for the subgenus Dinothenarus (s. str.), previously known only from northern North America and Eurasia.

A new species of Sorbinichthys (Teleostei: Clupeomorpha: Ellimmichthyiformes) from the Late Cretaceous of Morocco

2011 ◽  
Vol 48 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Alison M. Murray ◽  
Mark V.H. Wilson
Keyword(s):  
New Species ◽  
Early Cretaceous ◽  
Late Cretaceous ◽  
Type Species ◽  
Eastern Mediterranean ◽  
Marine Species ◽  
Western Tethys ◽  
Eastern Morocco ◽  
A New Species

A new species of ellimmichthyiform fish, represented by three specimens, has been recovered from deposits of the Akrabou Formation of Morocco. The new species is described in the existing genus Sorbinichthys , family Sorbinichthyidae, as Sorbinichthys africanus , sp. nov., closely related to the type species Sorbinichthys elusivo . The Ellimmichthyiformes is an extinct order of clupeomorph fishes that includes both freshwater and marine species ranging from the Early Cretaceous through the Eocene. Sorbinichthys elusivo is known from Cenomanian deposits of the eastern Mediterranean Tethys (Lebanon), whereas the new species is possibly early Turonian but more probably late Cenomanian in age, from the western Tethys (eastern Morocco). At lower taxonomic levels, the assemblage from the Akrabou Formation has a primarily Tethyan composition, exemplified by the genus Sorbinichthys, whereas supra-generic taxa found there include groups with trans-Atlantic (e.g., Sorbinichthyidae, Macrosemiidae) or near-cosmopolitan (e.g., Paraclupeidae) distributions.

Ekalakia (Decapoda: Brachyura): the preservation of eyes links Cretaceous crabs to Jurassic ancestors

2008 ◽  
Vol 82 (5) ◽  
pp. 1030-1034 ◽  
Author(s):  
Rodney M. Feldmann ◽  
Carrie E. Schweitzer ◽  
William R. Wahl
Keyword(s):  
New Species ◽  
Body Size ◽  
North America ◽  
Late Cretaceous ◽  
Deep Water ◽  
Late Jurassic ◽  
Number Of Species ◽  
A New Species

Description of a new species of crab, Ekalakia exophthalmops, brings to two the number of species within this Late Cretaceous genus from the upper mid-west in North America. Discovery of eyes and orbital structures in both species permits placement of the genus within the superfamily Glaessneropsoidea Patrulius, 1959 and family Glaessneropsidae Patrulius, 1959, extending the range of those taxa from the Late Jurassic into the Late Cretaceous. The extraordinarily large eyes relative to body size suggests that the Jurassic reef-dwelling crabs were adapted for a cryptic lifestyle which preadapted them for the deep-water, dysphotic, level-bottom habitat occupied by the Cretaceous descendants.

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