New Cretaceous cerithiform gastropods from the Pacific Slope of North America

2003 ◽  
Vol 77 (3) ◽  
pp. 442-453 ◽  
Author(s):  
Louella R. Saul ◽  
Richard L. Squires
Keyword(s):  
New Species ◽  
New Genus ◽  
Baja California ◽  
New Genus And Species ◽  
Northern Site ◽  
New Family ◽  
The Pacific ◽  
Pacific Slope ◽  
Three New Species ◽  
Future Work

Two new genera and three new species of shallow-marine, warm-water gastropods are reported from outcrops of various Cretaceous formations between British Columbia and Baja California. The potamidid Cedrosia pacifica new genus and species is from Turonian strata on Cedros Island, west coast of Baja California, Mexico. It is the earliest potamidid known from the rock record of the Pacific Slope. Alamirifica corona new genus and species, whose suprageneric relationships are uncertain, is from Turonian strata in southern California. The holotype has a round and rimmed aperture most similar to the photine buccinid Neoteron Pilsbry and Lowe, 1932. The holotype also has a pyramidal spire most similar to some fossil cerithioideans traditionally placed in the potamidid Pyrazus Montfort, 1810, but the type species of Pyrazus does not have a pyramidal spire. Future work might reveal that Alamirifica belongs to a new family.Four other Pacific Slope species are tentatively assigned to Alamirifica: the Aptian A.? harrissi (Allison, 1955); the Coniacian A.? ursa new species; the late Coniacian to early Campanian A.? harveyi (Whiteaves, 1903); and the poorly preserved Turonian Alamirifica? sp.As presently known, Cedrosia and Alamirifica were endemic to the study area, but they strongly resemble some Old World Tethyan gastropods. The distribution of A.? harveyi lends support to a relatively northern site of deposition for the Nanaimo Group.

Pacific Slope Cretaceous bivalves: eight venerid species

1993 ◽  
Vol 67 (6) ◽  
pp. 965-979 ◽  
Author(s):  
L. R. Saul
Keyword(s):  
New Species ◽  
North America ◽  
Southern California ◽  
New Genus ◽  
Baja California ◽  
The Other ◽  
New Genera ◽  
The North ◽  
The Pacific ◽  
Pacific Slope

Four new venerid species from the Cretaceous of the North American Pacific Slope are described and four previously described species are reassigned. Of the new species, two are allotted to new genera: Rhaiphiale based upon Rhaiphiale pharota n. sp. and Egrona based upon Egrona fallax n. sp., both Turonian in age and from southern California. The other new species are Loxo quintense n. sp., of late Maastrichtian age from California, and Paraesa cedrina n. sp., late Albian in age from Baja California, Mexico. The previously described species “Meretrix” arata Gabb, 1864, Turonian, and “?Meretrix” fragilis Gabb, 1869, late Maastrichtian, are placed in the new genus Callistalox; “Meretrix” lens (Gabb, 1864), Campanian age, and Flaventia zeta Popenoe, 1937, Turonian, are provisionally assigned to Paraesa Casey, 1952. This is the first identification of Paraesa from the Pacific Slope of North America. No species of Flaventia Jukes-Brown, 1908, is now known in Pacific Slope faunas.

New Late Cretaceous gastropods from the Pacific slope of North America

2001 ◽  
Vol 75 (1) ◽  
pp. 46-65 ◽  
Author(s):  
Richard L. Squires ◽  
Louella R. Saul
Keyword(s):  
New Species ◽  
North America ◽  
Upper Cretaceous ◽  
New Genus ◽  
First Record ◽  
Western Hemisphere ◽  
The Pacific ◽  
Valid Taxon ◽  
Pacific Slope ◽  
Three New Species

Two new genera and ten new species of shallow-marine, warm-water gastropods are reported from several Upper Cretaceous formations found between British Columbia and southern California. The buccinid Zaglenum new genus is represented by two new species and the turbinellid Fimbrivasum new genus is represented by three new species. The nododelphinulid Trochacanthus pacificus new species is the first record of this genus in the Western Hemisphere, and the procerthiid Nudivagus? califus new species could be the first record of this genus on the Pacific slope of North America. The xenophorid Xenophora (Endoptygma) hermax new species is only the second known Cretaceous species of this genus on the Pacific slope of North America, and this species establishes that Endoptygma Gabb, 1877, is a valid taxon. The neritid Otostoma sharonae new species is only the fourth known Cretaceous species of this genus on the Pacific slope of North America. The ringiculid Ringicula? (Ringiculopsis?) hesperiae new species is the first Campanian record of this genus on the Pacific slope of North America and the first recognition of this subgenus in this area.

A review of the hyperiidean amphipod families Mimonectidae and Proscinidae (Crustacea: Amphipoda: Hyperiidea: Scinoidea)

Zootaxa ◽  
2012 ◽  
Vol 3533 (1) ◽  
pp. 1 ◽  
Author(s):  
WOLFGANG ZEIDLER
Keyword(s):  
New Species ◽  
New Genus ◽  
Zoological Museum ◽  
Nominal Species ◽  
New Genus And Species ◽  
Unique Type ◽  
New Family ◽  
The Family ◽  
Three New Species ◽  
Review Ofthe

A taxonomic review of the hyperiidean amphipod families Mimonectidae and Proscinidae, superfamily Sciniodea, is pre-sented, based predominantly on collections held by the Zoological Museum, University of Copenhagen, Denmark. Priorto this review the family Mimonectidae consisted of two genera, Mimonectes with five species and Pseudomimonecteswith one species, and the family Proscinidae consisted of three genera, Proscina with five species, Mimoscina with twospecies and Cheloscina with one species. The five nominal species of Mimonectes are also recognised in this review withthe addition of three new species, M. alexanderi sp. nov., M. colemani sp. nov. and M. neosphaericus sp. nov. No morespecimens of Pseudomimonectes were found, and this genus is still known only from the unique type. A critical review ofthe family Proscinidae is presented arguing that its taxonomic distinction from the family Mimonectidae cannot be main-tained. Amongst the genus Proscina, P. scinoides (Woltereck, 1906) is considered a species of Mimoscina and P. magnaStephensen and Pirlot, 1931 a junior synonym of Mimonectes loveni Bovallius, 1885. The remaining three species are con-sidered valid for the time being and are transferred to the genus Mimonectes. Thus, eleven species of Mimonectes are rec-ognised in this review. Cheloscina, still known only from the unique type, is also similar to Mimonectes, apart from themorphology of the first antennae, and is here included in the family Mimonectidae. Mimoscina however possesses severalcharacters distinguishing it from other members of the Mimonectidae and a new family, Mimoscinidae fam. nov. is pro-posed to accommodate it. The two nominal species of Mimoscina are also recognised in this review with the addition ofone new species, M. galbraithae sp. nov. Amongst the extensive Dana collections is one specimen that clearly belongswith the Scinoidea but possesses several unique characters that preclude it from all other currently recognised families.Thus, a new family, Microscinidae fam. nov. is proposed to accommodate this new genus and species, Microscina rostratagen. et sp. nov. Keys are provided for all families, genera and species, together with diagnoses, and all species are illustrated.

Xenosellidae, a new family of Janiroidea (Asellota: Isopoda:  Crustacea), for Xenosella coxospinosa gen. nov., sp. nov.,  from the marine bathyal of eastern Australia

Zootaxa ◽  
2005 ◽  
Vol 1085 (1) ◽  
pp. 21 ◽  
Author(s):  
JEAN JUST
Keyword(s):  
New Species ◽  
Body Shape ◽  
New Genus ◽  
New Genus And Species ◽  
South Eastern ◽  
Incertae Sedis ◽  
New Family ◽  
Eastern Australia ◽  
Similar Body ◽  
South Eastern Australia

A new genus and species of janiroidean Asellota, Xenosella coxospinosa, is described from the mid-bathyal slope off the coast of south-eastern Australia. Following a comparison of the new species to several families of broadly similar body shape, with emphasis on monotypic Pleurocopidae, a new family, Xenosellidae, is proposed for the new species. In the course of comparing relevant taxa, the current placements of Prethura Kensley in the Santiidae and Salvatiella Müller in the Munnidae are rejected. The two genera are considered to be incertae sedis within the Asellota superfamily Janiroidea pending further studies.

scholarly journals New adherent foraminiferans from the Lower Cretaceous (Aptian) of south-central England

1986 ◽  
Vol 5 (2) ◽  
pp. 1-8 ◽  
Author(s):  
Mark A. Wilson
Keyword(s):  
New Species ◽  
Lower Cretaceous ◽  
New Genus ◽  
High Energy ◽  
Junior Synonym ◽  
New Genus And Species ◽  
South Central ◽  
Energy Environment ◽  
Three New Species

Abstract. Three new species and one new genus of adherent foraminiferans have been found within bivalve borings in cobbles from the Faringdon Sponge-gravel (Upper Aptian) of south-central England. The new genus and species, Lapillincola faringdonensis is a uniserial textulariine with an initial planispiral coil and a multiple aperture. Lapillincola gen. nov. is a remarkable homeomorph of Arenonina Barnard, which was originally described as an agglutinated form. Arenonina is shown here to actually be calcareous and perforate, and thus a junior synonym of Rectocibicides Cushman & Ponton. Acruliammina parvispira sp. nov. is another uniserial textulariine with an initial coil. Bullopora ramosa sp. nov. is an adherent polymorphinid with a branching, irregular series of adherent chambers. These foraminiferans may have used the bivalve borings as spatial refuges from the abrasive, high energy environment of the Sponge-gravel.

New Monoplacophora (Mollusca) from Late Cambrian and Early Ordovician of Missouri

1986 ◽  
Vol 60 (3) ◽  
pp. 606-626 ◽  
Author(s):  
Bruce L. Stinchcomb
Keyword(s):  
New Species ◽  
New Genus ◽  
New Genera ◽  
New Genus And Species ◽  
Upper Cambrian ◽  
Early Ordovician ◽  
New Family ◽  
Late Cambrian ◽  
Lower Ordovician ◽  
A New Species

Fourteen new species and six new genera of the molluscan class Monoplacophora are described from the Upper Cambrian Potosi and Eminence formations and the Lower Ordovician Gasconade Formation of the Ozark Uplift of Missouri and some new biostratigraphic horizons are introduced. A new superfamily, the Hypseloconellacea nom. trans. Knight, 1956, and a new family, the Shelbyoceridae, are named. The genus Proplina is represented by five new species: P. inflatus, P. suttoni from the Cambrian Potosi Formation, P. arcua from the Cambrian Eminence Formation and P. meramecensis and P. sibeliusi from the Lower Ordovician Gasconade Formation. A new genus and species in the subfamily Proplininae, Ozarkplina meramecensis, is described from the Upper Cambrian Eminence Formation. Four new monoplacophoran genera in the superfamily Hypseloconellacea and their species are described, including: Cambrioconus expansus, Orthoconus striatus, Cornuella parva from the Eminence Formation, and Gasconadeoconus ponderosa, G. waynesvillensis, G. expansus from the Gasconade Formation. A new genus in the new family Shelbyoceridae, Archeoconus missourensis, is described from the Eminence Formation and a new species of Shelbyoceras, S. bigpineyensis, is described from the Gasconade Formation.

The Cumacea of the Red Sea and Gulf of Aden, with the description of four new species and one genus

Zootaxa ◽  
2008 ◽  
Vol 1828 (1) ◽  
pp. 1 ◽  
Author(s):  
UTE MÜHLENHARDT-SIEGEL
Keyword(s):  
New Species ◽  
Red Sea ◽  
New Genus ◽  
Gulf Of Aden ◽  
New Genus And Species ◽  
Three New Species

Cumacea from benthos samples of the RV Meteor cruise 5/2 (1987) are investigated. Six species were identified. Descriptions of a new genus and species Paravaunthompsonia meteorae and three new species Pseudosympodomma adensis, Cyclaspis carinobacata (Bodotriidae) and Procampylaspis hildegardae (Nannastacidae) are given.

scholarly journals New sciophilous sponges from the Caribbean (Porifera: Demospongiae)

Zootaxa ◽  
2009 ◽  
Vol 2107 (1) ◽  
pp. 1-40 ◽  
Author(s):  
ROB W. M. VAN SOEST
Keyword(s):  
New Species ◽  
New Genus ◽  
New Genus And Species ◽  
Coral Rubble ◽  
Netherlands Antilles ◽  
The Caribbean ◽  
Three New Species ◽  
The University ◽  
A New Species ◽  
Water Coral

Thirteen new species of sponges are described from coral reefs of the Netherlands Antilles and the Colombian Caribbean. Species were collected during quantitative investigations of reef sponges performed by students of the University of Amsterdam in the period between 1984 and 1991. Most of the reported specimens were taken from undersides of coral rubble, crevices or reef caves (sciophilous habitats) and without exception are small encrusting or fistular sponges. The material reported in this paper includes a new genus and species of Placospongiidae, Placospherastra antillensis n. g. n. sp. , the first Caribbean representatives of the genera Triptolemma (Pachastrellidae) and Megaciella (Acarnidae), viz. Triptolemma endolithicum n. sp. and Megaciella incrustans n. sp., a new species of Timeidae, Timea curacaoensis n. sp., a new species of Microcionidae with peculiar colloscleres, Clathria (Thalysias) collosclera n. sp., two new species of Chondropsidae, viz. Batzella fusca n. sp., and Strongylacidon unguiferum n. sp., three new species of Coelosphaeridae, viz. Forcepia (Forcepia) minima n. sp., Forcepia (Forcepia) fistulosa n. sp., and Forcepia (Leptolabis) microlabis n. sp., a new species of Crellidae, Crella (Grayella) beglingerae n. sp., a new species of Hymedesmiidae, Hymedesmia (Hymedesmia) bonairensis n. sp., and a new species of Mycalidae, Mycale (Paresperella) vitellina n. sp. Most species are represented by only small fragments removed from the substrate by scalpel or diving knife, leaving little and often crumbled preserved type material. This study is intended to demonstrate that the small crusts dominating easily accessible shallow water coral rubble habitats in the Caribbean remain understudied.

scholarly journals The Cephalozygoptera, a new, extinct suborder of Odonata with new taxa from the early Eocene Okanagan Highlands, western North America

Zootaxa ◽  
2021 ◽  
Vol 4934 (1) ◽  
pp. 1-133
Author(s):  
S. BRUCE ARCHIBALD ◽  
ROBERT A. CANNINGS ◽  
ROBERT J. ERICKSON ◽  
SETH M. BYBEE ◽  
ROLF W. MATHEWES
Keyword(s):  
New Species ◽  
New Taxa ◽  
New Genus ◽  
Early Eocene ◽  
Western North America ◽  
New Genus And Species ◽  
Genus Level ◽  
New Family ◽  
Okanagan Highlands ◽  
Head Morphology

We describe the Cephalozygoptera, a new, extinct suborder of Odonata, composed of the families Dysagrionidae and Sieblosiidae, previously assigned to the Zygoptera, and possibly the Whetwhetaksidae n. fam. The Cephalozygoptera is close to the Zygoptera, but differs most notably by distinctive head morphology. It includes 59 to 64 species in at least 19 genera and one genus-level parataxon. One species is known from the Early Cretaceous (Congqingia rhora Zhang), possibly three from the Paleocene, and the rest from the early Eocene through late Miocene. We describe new taxa from the Ypresian Okanagan Highlands of British Columbia, Canada and Washington, United States of America: 16 new species of Dysagrionidae of the existing genus Dysagrion (D. pruettae); the new genera Okanagrion (O. threadgillae, O. hobani, O. beardi, O. lochmum, O. angustum, O. dorrellae, O. liquetoalatum, O. worleyae, all new species); Okanopteryx (O. jeppesenorum, O. fraseri, O. macabeensis, all new species); Stenodiafanus (S. westersidei, new species); the new genus-level parataxon Dysagrionites (D. delinei new species, D. sp. A, D. sp. B, both new); and one new genus and species of the new family Whetwhetaksidae (Whetwhetaksa millerae). 

Revision of Spinosphaera and establishment of the new genus Hutchingsiella (Polychaeta: Terebellidae: Terebellinae)

2003 ◽  
Vol 83 (4) ◽  
pp. 747-759 ◽  
Author(s):  
Mario H. Londoño-Mesa
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Western Australia ◽  
New Genus ◽  
Caribbean Region ◽  
Caribbean Coast ◽  
The Pacific ◽  
Mexican Caribbean ◽  
The Pacific Ocean ◽  
Three New Species

Spinosphaera is a Terebellinae genus with three species described from the Pacific Ocean, S. pacifica from Japan, S. oculata from California, and the doubtful S. cowarrie from Western Australia. The genus is presently unknown in the Grand Caribbean region. Spinosphaera is characterized by the absence of branchiae, by the great number of notopodia, and the presence of a special type of notochaetae, called ‘Spinosphaera-chaeta’. These chaetae have three different regions: distal denticulate blade, neck separating the former from a middle swollen spinous region, and a proximal smooth or bilimbate region; two sizes are present. The genus is redefined, with redescription of all species currently known. Three new species are described here, two from the Mexican Caribbean coast, S. hutchingsae and S. carrerai, and one from California, S. harrisae. A taxonomic key to identify all species is given. Hutchingsiella gen. nov. is proposed for S. cowarrie; it differs from Spinosphaera in having notochaeta from segment 5 and neurochaetae from segment 6, and for lacking Spinosphaera chaeta.

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