New Paleogene Fimbria (Mollusca: Bivalvia) from the Pacific Coast of southwestern North America

1990 ◽  
Vol 64 (4) ◽  
pp. 552-556 ◽  
Author(s):  
Richard L. Squires

The marine bivalve Fimbria susanensis n. sp. is reported from the uppermost Paleocene part of the “Meganos Stage” in the upper Santa Susana Formaton, Simi Hills, southern California.Fimbria pacifica n. sp. is reported from the middle lower Eocene “Capay Stage” strata of the Pacific coast of southwestern North America. The new species is present in the lower Bateque Formation, Baja California Sur, Mexico, and in the lower Juncal Formation, Whitaker Peak area and Santa Ynez Mountains, southern California.Fimbria susanensis n. sp. and F. pacifica n. sp. are the only fimbriids known from the Pacific coast of North America. Previously reported Pacific coast species, which gave a range of Late Cretaceous to late Eocene for this genus in this particular area, do not belong to Fimbria.

1995 ◽  
Vol 69 (3) ◽  
pp. 509-515 ◽  
Author(s):  
Richard L. Squires ◽  
Robert A. Demetrion

The cassiduloid echinoid Calilampas californiensis n. gen. and sp. is described from middle lower Eocene (“Capay Stage”) shallow-marine sandstones in both the middle part of the Bateque Formation, Baja California Sur, Mexico, and the lower part of the Llajas Formation, southern California. The new genus is tentatively placed in family Pliolampadidae. The cassiduloid Cassidulus ellipticus Kew, 1920, previously known only from the “Capay Stage” in California, is also present in “Capay Stage” shallow-marine sandstones of the Bateque Formation.


2021 ◽  
Vol 73 (3) ◽  
pp. A241220
Author(s):  
Rodney M. Feldmann ◽  
Carrie E. Schweitzer

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.


Zootaxa ◽  
2020 ◽  
Vol 4808 (2) ◽  
pp. 201-250
Author(s):  
ALAN A. MYERS ◽  
JAMES K. LOWRY

The amphipod genus Orchestia is revised. It now includes 10 species of which three are new: O. forchuensis sp. nov. from north-eastern North America and Iceland., O. perezi sp. nov. from Chile and O. tabladoi sp. nov. from Argentina. Orchestia inaequalipes (K.H. Barnard 1951) is reinstated. The type species of the genus, O. gammarellus is redescribed based on material from Fountainstown, Ireland and a neotype is established to stabilize the species. The species was originally described from a garden in Leiden, far from the sea. Its true identity is unknown and no type material exists. Orchestia gammarellus (Pallas, 1776) is shown to be a sibling species group with members in both hemispheres of the temperate Atlantic as well along the Pacific coast of South America. A hypothesis for the establishment of the current distribution of Orchestia species is presented that extends back to the Cretaceous. 


1954 ◽  
Vol 11 (4) ◽  
pp. 454-471 ◽  
Author(s):  
E. Berkeley ◽  
C. Berkeley

Descriptions are given of the new genera Neopygospio (type N. laminifera, nov.) and Novobranchus (type N. pacificus, nov.); of the new species Nereis (Eunereis) wailesi, Spio butleri, Neopygospio laminifera, Novobranchus pacificus; and of the new variety pacificus of Distylia volutacornis (Montagu). All are from the Pacific coast of Canada. Synonymy is proposed of Lepidonotus caelorus Moore with L. squamatus (Linné), and of Goniada eximia Ehlers with Ophioglycera gigantea Verrill. In addition to the new species and variety, records of three species new to western Canada are presented, and notes on others. Thirteen species and a variety new to eastern Canada are recorded, one of them new to North America.


1977 ◽  
Vol 55 (12) ◽  
pp. 1988-1991 ◽  
Author(s):  
Z. Kabata ◽  
S. N. Wilkes

Peniculus asinus, a new species of copepod parasitic on Sebastes (Pisces: Teleostei) off the Pacific coast of Canada is described and illustrated. The copepod is an unique member of its genus in that it possesses cephalothoracic holdfast processes. The discovery of a Peniculus with these processes is taken as evidence confirming the place of this genus in the family Pennellidae.


1966 ◽  
Vol 23 (6) ◽  
pp. 805-811 ◽  
Author(s):  
Tai Soo Park

A new species Bradyidius saanichi from Saanich Inlet, Vancouver Island, British Columbia, Canada, is described and illustrated in detail. This species is closely related to B. pacificus (Brodsky, 1950) among the six previously known species in the genus, but can be readily distinguished from the latter by the strongly divergent rostral rami in addition to some other differences.


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