Goupillaudina, nouveau genre de foraminifere du Cretace superieur

1957 ◽  
Vol S6-VII (6) ◽  
pp. 861-876 ◽  
Author(s):  
Pierre Marie
Keyword(s):  
New Species ◽  
Upper Cretaceous ◽  
The Family ◽  
Upper Campanian

Abstract Describes a new upper Cretaceous operculinelliform genus of the family Rotaliidae, Goupillaudina, and six new species including the genotype, G. daguini (lower Maestrichtian and upper Campanian). Nummulites senonicus (middle and upper Maestrichtian) is renamed G. senonicus.

New late Cretaceous (Campanian and Maastrichtian) marine gastropods from California

2003 ◽  
Vol 77 (1) ◽  
pp. 50-63 ◽  
Author(s):  
Richard L. Squires ◽  
Louella R. Saul
Keyword(s):  
New Species ◽  
Upper Cretaceous ◽  
New Genus ◽  
Middle Eocene ◽  
First Record ◽  
Northeastern Brazil ◽  
Marine Gastropods ◽  
The Pacific ◽  
Lower Maastrichtian ◽  
Upper Campanian

Three new genera and six new species of shallow-marine gastropods are named from Upper Cretaceous strata found mainly in California. The trochidsCidarina cretaceanew species andCidarina betanew species, the ficidBulbificopsis garzanew genus and new species, and the cancellariidMataxa aridanew species are from the Maastrichtian part of the Moreno Formation of north-central California. This is the earliest record ofCidarina, whose previous chronologic range was middle Eocene to Recent.Bulbificopsisis the first record of a Cretaceous ficid from the Pacific slope of North America, andMataxawas previously known only from Upper Cretaceous strata in the southeastern United States and northeastern Brazil. The buccinidEripachya jalamanew species and the fasciolariidCalkota daileyinew genus and new species are from the lower upper Campanian Jalama Formation in southern California.Calkotais also recognized herein as occurring in upper Maastrichtian strata of North Dakota and South Dakota. The new melongenid genus,Pentzia, established forFulgur hilgardiWhite, 1889, is from Campanian strata throughout California; middle Campanian strata on Sucia Island, Washington; and upper Campanian to lower Maastrichtian strata in northern Baja California, Mexico.

Some Cretaceous Echinoidea from Jamaica

1923 ◽  
Vol 60 (5) ◽  
pp. 199-216 ◽  
Author(s):  
Herbert L. Hawkins
Keyword(s):  
New Species ◽  
Upper Cretaceous ◽  
Simple Structure ◽  
Time Range ◽  
Large Species ◽  
System A ◽  
Similar Relation ◽  
The Family ◽  
Superficial Similarity ◽  
A New Species

(a) Palæontological.—A new genus of the Holectypoida, Metholectypus, is described. Its only known species, M. trechmanni sp.n., shows remarkable superficial similarity with Lanieria lanieri. It is argued that these two genera may be divergent end-forms of the Coenholectypus stock.A large species of Heterosalenia (H. occidentalis sp.n.) gives occasion for discussion of the affinities of that genus. Arguments are put forward to show that Heterosalenia and Pseudosalenia may be composite genera, including occasional orthogenetic offshoots from a persistent stock (perhaps Hemicidaris) consisting of individual, or group, cases of an exaggeration of fundamental tendencies that may be accounted for on a Mendelian basis. A similar relation is believed to unite and disintegrate Salenia and Hyposalenia.A new species of Botriopygus (B. rudistarum sp.n.) shows a very simple stage in the production of petals and phyllodes.(b) Stratigraphical.—Since all the determinable species and one of the genera are considered to be new, exact comparison of faunas is impossible. This is the only crumb of comfort that I can give to Jamaican stratigraphers. They must make what use of it they can; but to a palæontologist it is almost immaterial. The two alternative published views as to the horizons of the three beds from which the Echinoids come are (i) Trechmann's opinion that the whole series is probably Maëstrichtian, and (ii) Hill's belief that the lower part is Cretaceous (presumably uppermost) and the upper part Eocene. In the light of the results derived from study of the Echinoids, these two views seem very little different, and both untenable.The solitary specimen from the Barrettia beds (Metholectypus trechmanni) invites comparison with Lanieria from Cuba. The horizon of the latter is not known definitely, but is accepted as Cretaceous. The only other member of the family to which Lanieria belongs is Discholectypus, an Albian genus.The specimens from the shales overlying the Barrettia beds and beneath the Rudist Limestones are Leiocidaris sp. and Hemiaster sp. The former is closely comparable with L. hemigranosus from an approximately Cenomanian horizon in Texas. The latter, whose preservation prevents satisfactory comparison, suggests affinity with Cenomanian or Turonian species of Hemiaster rather than with any from higher horizons.The excellently represented species from the Rudist Limestone are Heterosalenia occidentalis and Botriopygus rudistarum spp.n. The latest previous record for Heterosalenia is from the base of the Senonian, and that represents by a long way the latest appearance of the family to which it belongs. Even if the explanation of the “genus” given above (sect, vi) be admitted, the fact remains that no form from which H. occidentalis could be derived is known from above the “Coniacian”. Botriopygus is chiefly developed in the Lower Cretaceous, but seems to range almost throughout the period. The simple structure of the new species points to a lower, rather than a higher, position.This record of simple deduction obviously excludes all likelihood of a Tertiary date for any part of the sequence considered. It fails, equally, to indicate any specially high Cretaceous zones. Further, it can hardly be a coincidence that the stages suggested by the Echinoids are in conformity with the known sequence of the beds. The literal evidence is, then, that we have in these three members of the Jamaican Cretaceous system a time-range from the base of the Upper Cretaceous to about the base of the Senonian. Some latitude in interpretation may be allowed, but it does not seem that Mäestrichtian could be included, at least for the parts of the Rudist Limestone represented by the Echinoids.This result came as a great surprise to me; and it will, I fear, give a shock to West Indian stratigraphers. But with the evidence available “I can do no other”. It is possible, of course, that the West Indies was a region to which belated forms retreated to die, so that these types were surviving long after their extinction elsewhere; but there is no existing authority for assuming this—I suggest it out of sympathy with those workers to whom my conclusions may be disconcerting.

scholarly journals The oldest and first nearly complete skeleton of a chelid, of the Hydromedusa sub-group (Chelidae, Pleurodira), from the Upper Cretaceous of Patagonia

2001 ◽  
Vol 172 (2) ◽  
pp. 237-244 ◽  
Author(s):  
Marcelo de la Fuente ◽  
France de Lapparent de Broin ◽  
Teresa Manera de Bianco
Keyword(s):  
Upper Cretaceous ◽  
Cervical Vertebrae ◽  
Lake Area ◽  
Lower Eocene ◽  
Rio Negro ◽  
Caudal Vertebrae ◽  
The Family ◽  
Lower Maastrichtian ◽  
Middle Member ◽  
Upper Campanian

Abstract A new pleurodiran (side necked) turtle is described on material from the Upper Cretaceous of Patagonia, from sediments outcropping at Cerro Blanco, Yaminue Creek, Rio Negro, Argentina. The sediments are compared to those from the Pellegrini lake area referred to the middle Member of the Allen Formation, Upper Campanian-Lower Maastrichtian. Yaminuechelys gasparinii n.g., n.sp., is a pleurodiran turtle on the pelvis sutured to the shell and a chelid on the formula of cervical vertebrae and the lateral cheek emargination, deeply extended towards (as here) or up to the posterior emargination. It is the oldest record of a nearly complete skeleton of a chelid, long necked (elongated cervical vertebrae, lowered skull), and the first sufficiently known of the Chelodina-Hydromedusa group (elongated skull, lowered neural arch and centrum of the cervicals, low zygapophyses processes, strong polygoned decoration) and of the Hydromedusa sub-group (widened inner nares by reduced palatine ossification). The carapace is 41,8 cm long. It is more primitive than Hydromedusa (Eocene-Extant, South America) and retains primitive characters either still present or no more present in the other chelids of the Pseudemydura, Emydura and Phrynops groups (short necked) and Chelus group (long necked), representing the anterior clades of phyletic diversification [Gaffney, 1977], or evolutive grades, of the family. Such are plesiomorphic, relative to Hydromedusa, the less pronounced lateral skull emargination, wider and longer hyoid elements, wider nucal and cervical, this not drawn back, presence of lateral mesoplastra, not shortened bridge, straight borders of the not shortened and not widened posterior plastral lobe, amphicoelous sacrals and caudal vertebrae uniting amphicoelous, concavoplaty--(i.e. anteriorly concave, posteriorly flat) and procoelous or weakly procoelous elements. As Hydromedusa, Yaminuechelys n. g. retains primitive characters such as the long series of neurals, the very lateral attachment of the axillar and inguinal processes and the attachment of the pelvis, below pleural 8 (and 7 in the extant form) and a small part of the suprapygal, and the ischitatic sutures prolonged on the xiphiplastral points. It is distinguished by the apomorphic presence of a wide and week anterior carapacial notch. Yaminuechelys n.g., or aff. Yaminuechelys spp. are known in Patagonia by fragmentary remains in a dozen of Upper Cretaceous and two Palaeocene localities. Before them, chelids are known in the world only by undefined smaller forms from Lower Albian and Upper Albian-Cenomanian Patagonian localities. In Australia, they are known from Palaeocene-Lower Eocene (no Cretaceous data before) with already extant Australian diversified forms. Yaminuechelys n.g. demonstrates how long the diversification in chelids is realized in South Gondwana before the full break of the continents.

A new species of Zangerlia (Testudines: Nanhsiungchelyidae) from the Upper Cretaceous redbeds at Bayan Mandahu, Inner Mongolia, and the relationships of the genus

1996 ◽  
Vol 33 (4) ◽  
pp. 526-540 ◽  
Author(s):  
Donald Brinkman ◽  
Jiang-Hua Peng
Keyword(s):  
New Species ◽  
Inner Mongolia ◽  
Upper Cretaceous ◽  
Cladistic Analysis ◽  
Sister Group ◽  
Sister Group Relationship ◽  
The Family ◽  
A New Species

Zangerlia neimongolensis sp.nov. is described on the basis of material from the Upper Cretaceous redbeds at Bayan Mandahu in Inner Mongolia. Zangerlia neimongolensis is similar to Zangerlia testudinimorpha in the proportions of the carapace and plastron and presence of a knob at the posterior end of the neural series, but differs from it in the arrangement of scutes covering the bridge. The placement of Zangerlia in the Nanhsiungchelyidae is supported by derived features of the bridge peripherals and plastral scutes shared by Z. neimongolensis, Basilemys, and Nanhsiungchelys. These are the presence of ventrally expanded sixth inframarginal scutes, humeral scutes that are narrow at the midline and expanded laterally, pectoral scutes that are wide at the midline and narrow laterally, and large rectangular abdominal scutes. The skull of Zangerlia is more primitive than that of Nanhsiungchelys, the only other member of the family for which a skull is known. It shows extensive emargination of the temporal and cheek regions and the absence of a large, tubular external narial opening. A cladistic analysis of the Trionychoidea using Zangerlia as the representative of the Nanhsiungchelyidae suggests a sister-group relationship between the Nanhsiungchelyidae and Adocidae.

Fossil aphids (Hemiptera: Sternorrhyncha) from Canadian Cretaceous amber and from the Miocene of Nevada

2006 ◽  
Vol 37 (1) ◽  
pp. 91-104 ◽  
Author(s):  
Ole Heie
Keyword(s):  
New Species ◽  
Host Plant ◽  
Upper Cretaceous ◽  
Middle Miocene ◽  
Clay Shales ◽  
The Family ◽  
Three New Species

AbstractThree new species of fossil aphids are described from Canadian amber, age the Upper Cretaceous, viz. Longiradius foottitti n. gen. et n. sp., which has been referred to Palaeoaphididae, Canaphis albertensis n. gen. et n. sp. and Aphidinius constrictus n. gen. et n. sp., which have been impossible to place in any known family. Furthermore more material of Mesozoicaphis canadensis Heie, belonging to the extinct family Mesozoicaphididae, are described. At least 32 specimens of Mesozoicaphis spp. occur in the material, often more than two in the same piece of amber, making it highly probable that their host plant was the resin-producing gymnosperm. Eight new species of fossil aphids with 16 specimens are described from clay shales in Nevada, age the Middle Miocene, viz. Palaeogreenidea rittae n. gen. et n. sp. belonging to the family Greenideidae, Similidrepan pulawskii n. gen. et n. sp., Nevaphis nevadensis n. gen. et n. sp. and Americaphis longipes n. gen. et n. sp., which have placed in Drepanosiphidae, Lachnarius miocaenicus n. gen. et n. sp., which belongs to Lachnidae, and Eriosaphis leei gen. et n. sp., Eriosomaphis jesperi n. gen. et n. sp. and Eriosomaphis occidentalis n. sp., which have been placed in Eriosomatidae (= Pemphigidae).

Brachylepas Woodward and Virgiscalpellum Withers (Cirripedia) from the Upper Cretaceous of Arkansas

1987 ◽  
Vol 61 (1) ◽  
pp. 101-111 ◽  
Author(s):  
Victor A. Zullo ◽  
Ernest E. Russell ◽  
Frederic F. Mellen
Keyword(s):  
New Species ◽  
Upper Cretaceous ◽  
Hot Spring ◽  
Basal Part ◽  
Upper Campanian

Brachylepas americana n. sp. is described from abundant and well-preserved capitular and basal whorl plates from a littoral facies in the basal part of an Upper Cretaceous (upper Campanian) conglomerate questionably assigned to the Brownstown Formation in Hot Spring County, Arkansas. The new species resembles the European littoral Campanian–Maastrichtian species B. guascoi (Bosquet), and differs markedly from the only other known American species, B. angulosa Collins, from the Upper Cretaceous middle Ripley Formation of Mississippi. A few juvenile carinae of Virgiscalpellum may represent V. gabbi apertus Collins, previously known from the Ripley and basal Prairie Bluff Formations in Mississippi.

A new species of Athrotaxites (Athrotaxoideae, Cupressaceae) from the Upper Cretaceous Raritan Formation, New Jersey, USA

Botany ◽  
2016 ◽  
Vol 94 (9) ◽  
pp. 831-845 ◽  
Author(s):  
Ignacio H. Escapa ◽  
Maria A. Gandolfo ◽  
William L. Crepet ◽  
Kevin C. Nixon
Keyword(s):  
New Jersey ◽  
New Species ◽  
Upper Cretaceous ◽  
Middle Part ◽  
Micro Computed Tomography ◽  
Adaxial Side ◽  
Sem Images ◽  
The Family ◽  
Resin Canals ◽  
A New Species

A new species of anatomically preserved Cupressaceae is described from the Upper Cretaceous Raritan Formation (New Jersey, USA). The fossils are charcolified isolated ovuliferous complexes that were studied by means of a combination of SEM images and micro-computed tomography (micro-CT), allowing the observation of morphological and anatomical characters. Each ovuliferous complex bears 3–4 anatropous winged seeds, disposed in one row on a thin medial part of the adaxial side of the ovuliferous complex. Based on the combination of characters such as ovuliferous complex morphology, arrangement of vascular tissues and resin canals, seed number and their morphology, orientation and disposition, these fossils are placed within a new species of the fossil genus Athrotaxites. The developmental stage of the specimens is analyzed base on comparisons with living representatives of the subfamily Athrotaxoideae (i.e., Athrotaxis spp.), which supports a post-pollination stage for these fossils. In addition, the new species is compared with other extant and extinct representatives of basal cupressaceous subfamilies. This new record from the Upper Cretaceous sediments of New Jersey further supports a wider distribution of the subfamily Athrotaxoideae during the middle part of the Mesozoic, as it has been also noted for other basal representatives of the family Cupressaceae.

A late Coniacian ceratioid dinoflagellate cyst, Odontochitina octopus sp.nov., from the Kanguk Formation, Canadian Arctic

1998 ◽  
Vol 35 (8) ◽  
pp. 923-930 ◽  
Author(s):  
K Núñez-Betelu ◽  
L V Hills
Keyword(s):  
New Species ◽  
Environmental Conditions ◽  
Upper Cretaceous ◽  
Canadian Arctic ◽  
Marine Species ◽  
Previous Description ◽  
Dinoflagellate Cyst ◽  
The Family ◽  
Sverdrup Basin

Anew species of dinoflagellate cyst, Odontochitina octopus sp.nov., is described from the Upper Cretaceous Kanguk Formation of the Sverdrup Basin, Canadian Arctic Islands. The features that support the proposal of this new species also necessitate the emendation of the genus. Odontochitina octopus is a large, cornucavate, and ceratioid cyst with four finger-like terminations on the apical horns and two terminations on both the postcingular and antapical horns. These finger-like terminations are unique to this new species and are formed by the detachment of the paraplates at mid-length of each horn. All other features of O. octopus conform with the previous description of the genus. In the Family Ceratiaceae four plates form the apical horn, whereas two plates are involved in both the postcingular and antapical horns. In O. octopus the mid-length detachment of the horn-forming paraplates seems to have developed the finger-like terminations. Since the nature and amount of pores and perforations in other species of Odontochitina are variable and possibly linked to changes in the environment, the presence of the multiple-fingered O. octopus in a single widespread horizon might also be indicative of short-lived unusual environmental conditions. At this horizon, which has been dated as late Coniacian by the ammonite Scaphites depressus Reeside, the palynomorph assemblage is highly dominated by marine species.

A new species of trionychid turtle from the Upper Cretaceous (Campanian) Fruitland Formation of New Mexico, USA

2018 ◽  
Vol 92 (6) ◽  
pp. 1107-1114 ◽  
Author(s):  
Walter G. Joyce ◽  
Tyler R. Lyson ◽  
Joseph J.W. Sertich
Keyword(s):  
New Species ◽  
New Mexico ◽  
Thin Shell ◽  
Upper Cretaceous ◽  
Type Specimen ◽  
Shell Material ◽  
Fossil Forest ◽  
The Right ◽  
A New Species ◽  
Upper Campanian

AbstractNew shell material of a trionychid turtle from the Upper Cretaceous (upper Campanian) Fossil Forest Member of the Fruitland Formation of northwestern New Mexico represents a new species,Gilmoremys gettyspherensis. The material consists of right costals I–III, V, VI, and VIII, left costals V, VII, and VIII, the left half of the entoplastron, the right hypo- and xiphiplastron, and the left hyo-, hypo-, and xiphiplastron. The specimen shows great similarities to the Late Cretaceous (Maastrichtian) trionychidGilmoremys lancensis(Gilmore, 1916) by having a relatively thin shell, carapacial sculpturing consisting of fine pits combined with extended sinusoidal ridges or grooves, free costal rib ends, presence of a preneural, a distally constricted costal I and distally expanded costal II, two lateral hyoplastral processes, low hyoplastral shoulders, and full midline contact of the elongate xiphiplastra, but differs by being smaller, having raised sinusoidal ridges on the carapace instead of grooves, less distally expanded costals II, and less elongate xiphiplastra. Phylogenetic analysis placesGilmoremys gettyspherensisn. sp. as sister toGilmoremys lancensisnear the base of the clade Plastomenidae. Like the majority of previously described plastomenid materials, the type specimen ofGilmoremys gettyspherensisn. sp. was collected from a mudstone horizon, suggesting a preference for ponded environments.UUID:http://zoobank.org/e7165061-d86b-46b7-a1f8-c31f5a8ed628

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