Preliminary report on the paleontology of the Black Hills, containing descriptions of new species of fossils from the Potsdam, Jurassic, and Cretaceous formations of the Black Hills of Dakota

1877 ◽  
Author(s):  
R.P. Whitfeild ◽  
John Wesley Powell
Keyword(s):  
New Species ◽  
Preliminary Report ◽  
Black Hills

Trilobites from the upper part of the Deadwood Formation (Upper Franconian and Trempealeauan stages, Upper Cambrian), Black Hills, South Dakota

1997 ◽  
Vol 71 (1) ◽  
pp. 86-102 ◽  
Author(s):  
James H. Stitt ◽  
Wendy Metcalf Straatmann
Keyword(s):  
New Species ◽  
South Dakota ◽  
Sea Level ◽  
Great Basin ◽  
Black Hills ◽  
Upper Cambrian ◽  
Two New Species ◽  
Study Interval ◽  
Central Texas

Trilobites assigned to 29 genera and 39 species are reported from the Deadwood Formation in the Black Hills of South Dakota. Two new species, Prosaukia lochmani and Arcifimbria pahasapaensis, are described. Brachiopods are reported from the Taenicephalus Zone.A biostratigraphic zonation is established for the upper part of the Deadwood Formation. The Taenicephalus Zone in the lower part of the study interval is succeeded upsection by the Ellipsocephaloides Zone, both of which are assigned to the Franconian Stage. These two zones are overlain in turn by the Illaenurus and Saukia Zones of the Trempealeauan Stage. These zones are used to correlate this part of the Deadwood with coeval strata in Montana and Wyoming, central Texas, Oklahoma, and Alberta, Canada. The lowstand of sea level that occurred in the Great Basin at the time of the deposition of the Saukiella junia Subzone of the Saukia Zone probably extended eastward into the Black Hills, resulting in the absence of this fauna in the Black Hills.

scholarly journals Cloud rats in the Philippines — preliminary report on distribution and status

Oryx ◽  
1993 ◽  
Vol 27 (1) ◽  
pp. 41-48 ◽  
Author(s):  
W. L. R. Oliver ◽  
C. R. Cox ◽  
P. C. Gonzales ◽  
L. R. Heaney
Keyword(s):  
New Species ◽  
Preliminary Report ◽  
Field Survey ◽  
The Philippines ◽  
Type Locality ◽  
The Status ◽  
Conservation Plans ◽  
Do So

This paper describes a preliminary field survey of bushy-tailed cloud rats Crateromys spp. and slender-tailed cloud rats Phloeomys in the Philippines in April and May 1990. Brief visits were made to all islands/locations known to support these animals and also to neighbouring areas considered likely to do so. Comparing the results with information from previous surveys suggests that both genera, particularly Crateromys, are more widely distributed than formerly believed, but that some forms are threatened. Three of the four known species of Crateromys are known only from their holotype specimens, one of which awaits description. Another is extinct in its type locality on Ilin Island but may survive on neighbouring Mindoro. These preliminary findings indicate that thorough surveys are required to establish the status of certain species, to investigate the possibility that new species remain undiscovered and to develop conservation plans to reduce the likelihood of further extinctions occurring.

Ptychopleurites spinosa, a new trilobite species from the Upper Cambrian of Texas and South Dakota

1995 ◽  
Vol 69 (6) ◽  
pp. 1183-1185 ◽  
Author(s):  
James H. Stitt ◽  
Wendy L. Metcalf
Keyword(s):  
New Species ◽  
South Dakota ◽  
Black Hills ◽  
Upper Cambrian ◽  
Type Section ◽  
Central Texas ◽  
A New Species

During preparation of a manuscript on new collections of Upper Cambrian trilobites from the Threadgill Creek section in central Texas (Longacre, 1970, text-fig. 6), a new trilobite species Ptychopleurites spinosa was discovered that can be used to recognize a revised base to the Saukia Zone (Trempealeauan Stage) in central Texas. This species is represented in central Texas by numerous, well-preserved cranidia and librigenae, but no pygidia have been recovered. Recently Ptychopleurites spinosa was also identified in a collection of trilobites of the partly correlative Illaenurus Zone (= lower part of Saukia Zone) from the type section of the Deadwood Formation in the Black Hills of South Dakota. This work is part of a paper that will describe the latest Franconian and Trempealeauan trilobites from the Deadwood Formation, using collections made by Dr. Christina Lochman-Balk. Ptychopleurites spinosa is represented in the Black Hills by incompletely preserved cranidia and well-preserved librigenae. Because it is not known which of these two papers will be published first, it was decided to establish Ptychopleurites spinosa as a new species with one of the better Texas cranidia as the holotype and the Black Hills material as part of the suite of paratypes.

A preliminary report of Gymnopus sect. Impudicae (Omphalotaceae) from China

Phytotaxa ◽  
2021 ◽  
Vol 497 (3) ◽  
pp. 263-276
Author(s):  
JI-PENG LI ◽  
YU LI ◽  
TAI-HUI LI ◽  
VLADIMÍR ANTONÍN ◽  
MD IQBAL HOSEN ◽  
...  
Keyword(s):  
New Species ◽  
South Korea ◽  
Preliminary Report ◽  
New Records ◽  
Phylogenetic Analyses ◽  
Relevant Literature ◽  
A New Species

A new species, Gymnopus alliifoetidissimus, is described from China. It represents the first new species of Gymnopus sect. Impudicae for this country. It is characterized by its small, white basidiomata with a strong alliaceous smell. Additionally, G. densilamellatus and G. similis, originally described from South Korea, are reported as new records to China. Detailed descriptions, colour photographs, illustrations of microcharacters and phylogenetic analyses based on nrDNA (ITS1-5.8S-ITS2-nrLSU) are presented. All known Chinese species were summarised in a preliminary report based on relevant literature and this study, and a key to the reported species of G. sect. Impudicae from China is provided.

Trilobites, biostratigraphy, and lithostratigraphy of the Crepicephalus and Aphelaspis zones, lower Deadwood Formation (Marjuman and Steptoean stages, Upper Cambrian), Black Hills, South Dakota

2000 ◽  
Vol 74 (2) ◽  
pp. 199-223 ◽  
Author(s):  
James H. Stitt ◽  
Patrick J. Perfetta
Keyword(s):  
New Species ◽  
North America ◽  
South Dakota ◽  
Shallow Water ◽  
Black Hills ◽  
Strong Preference ◽  
Upper Cambrian ◽  
Shallow Subtidal ◽  
Intrashelf Basin ◽  
One New Species

Trilobites assigned to 25 genera and 39 species are reported from the Crepicephalus Zone (Marjuman Stage) and Aphelaspis Zone (Steptoean Stage) in the lower part of the Deadwood Formation in the Black Hills of South Dakota. Six taxa are left in open nomenclature, and one new species, Glaphyraspis newtoni, is described.Analysis of the lithologies for this interval from the best exposed measured sections on a southeast-northwest transect reveal a nearshore, shallow subtidal, siliciclastic dominated environment to the southeast, succeeded offshore by a shallow subtidal to lowest intertidal carbonate shoal environment, and then a transitional shaly limestone interval into a more shaly distal intrashelf basin to the northwest.Specimens of species of Coosia, Crepicephalus, Tricrepicephalus, Kingstonia, Pseudagnostina, and Coosina comprise more than 75 percent of the fauna of the Crepicephalus Zone. Coosina ariston, Crepicephalus snowyensis, Tricrepicephalus tripunctatus, Arcuolimbus convexus, and some species of Blountia had a strong preference for the shallow-water siliciclastic facies present in the southeastern sections closest to the paleoshoreline. Crepicephalus rectus, Tricrepicephalus coria, Agnostogonus, cf. A. incognitus and the genera Coosella and Uncaspis preferred the farther offshore, deeper-water, shaly intershelf basin located in the northern Black Hills. Trilobites from the Crepicephalus Zone are used to correlate the lower part of the Deadwood Formation with coeval strata elsewhere in North America.

scholarly journals Early Eocene marine ostracods from the Crescent Formation, southwestern Washington State, USA

2009 ◽  
Vol 28 (2) ◽  
pp. 117-129 ◽  
Author(s):  
Tatsuhiko Yamaguchi ◽  
James L. Goedert
Keyword(s):  
New Species ◽  
Washington State ◽  
Black Hills ◽  
Pacific Basin ◽  
Early Eocene ◽  
Crescent Formation ◽  
Early Eocene Climatic Optimum ◽  
Geological Age ◽  
Climatic Optimum ◽  
Eleven Species

Abstract. An assemblage of eleven species of Early Eocene marine intertidal and sublittoral ostracods has been found in the Crescent Formation in the Black Hills, Thurston County, Washington State, USA. The ostracods are subtropical and tropical taxa, such as Bairdoppilata, Cytherella and Neomonoceratina, which are found south of Washington today. Based on the geological age of the formation, the fauna corresponded to the Early Eocene Climatic Optimum. Five new species are recognized: Acanthocythereis olympiana sp. nov., Ambostracon irizukii sp. nov., Bairdoppilata crescentana sp. nov., Coquimba washingtonensis sp. nov. and Cytherelloidea squiresi sp. nov. This new assemblage from the Crescent Formation is the northernmost record of Early Eocene ostracods for the entire Pacific Basin.

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