scholarly journals A fossil unicorn crestfish (Teleostei, Lampridiformes, Lophotidae) from the Eocene of Iran

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3381 ◽  
Author(s):  
Donald Davesne
Keyword(s):  
Deep Sea ◽  
Fossil Record ◽  
New Genus ◽  
Late Eocene ◽  
Taxonomic Composition ◽  
New Taxon ◽  
Zagros Basin ◽  
New Genus And Species ◽  
Close Relationship ◽  
Early Cenozoic

Lophotidae, or crestfishes, is a family of rare deep-sea teleosts characterised by an enlarged horn-like crest on the forehead. They are poorly represented in the fossil record, by only three described taxa. One specimen attributed to Lophotidae has been described from the pelagic fauna of the middle-late Eocene Zagros Basin, Iran. Originally considered as a specimen of the fossil lophotid †Protolophotus, it is proposed hereby as a new genus and species †Babelichthys olneyi, gen. et sp. nov., differs from the other fossil lophotids by its relatively long and strongly projecting crest, suggesting a close relationship with the modern unicorn crestfish,Eumecichthys. This new taxon increases the diversity of the deep-sea teleost fauna to which it belongs, improving our understanding of the taxonomic composition of the early Cenozoic mesopelagic ecosystems.

A new genus and species of spoon-winged lacewing from the Cretaceous Crato Formation in Brazil (Neuroptera: Nemopteridae)

2020 ◽  
Vol 3 (4) ◽  
pp. 338-341
Author(s):  
ANDRÉ NEL ◽  
CRISTIAN PELLA
Keyword(s):  
Early Cretaceous ◽  
Fossil Record ◽  
New Genus ◽  
Late Eocene ◽  
New Genus And Species ◽  
Burmese Amber ◽  
Early Oligocene ◽  
Stem Group

The lacewing family Nemopteridae Burmeister, 1839 is very poorly represented in the fossil record with three Early Cretaceous genera of uncertain affinities from the Brazilian Crato Formation, one ‘mid’-Cretaceous representative of the stem group of the Crocinae Navás, 1910 in the Burmese amber, and two Cenozoic nemopterine genera Marquettia Navás, 1913 (late Eocene-early Oligocene) and Paleonemia Claisse et al., 2019 (middle Oligocene). Also two undetermined Nemopterinae are recorded from the late Eocene and the Oligocene (Lu et al., 2019a: Table 1; Claisse et al., 2019).

A new tribe, new genus and two new species of Barbourofelinae (Felidae, Carnivora, Mammalia) from the Early Miocene of East Africa and Spain

2001 ◽  
Vol 92 (1) ◽  
pp. 97-102 ◽  
Author(s):  
J. Morales ◽  
M. J. Salesa ◽  
M. Pickford ◽  
D. Soria
Keyword(s):  
New Species ◽  
East Africa ◽  
Fossil Record ◽  
New Genus ◽  
New Genus And Species ◽  
Two New Species ◽  
Close Relationship ◽  
New Tribe ◽  
A New Species ◽  
Felid Species

ABSTRACTA new genus and species of felid, Ginsburgsmilus napakensis, is described from Napak, Uganda. Material from Songhor, Kenya, previously identified as Afrosmilus turkanae by Schmidt-Kittler (1987) is assigned to this species. A new species of Afrosmilus, A. hispanicus, is described from Artesilla, Spain. These new felid species combine sabre-tooth canines of maochairodont type with cheek teeth similar to those of Pseudailurus. Phylogenetically they are close to Afrosmilus turkanae which shows a greater specialisation towards markedly machairodont forms. On the basis of dental features, we propose a close relationship between these two genera (which we group into the new tribe Afrosmilini) and the tribe Barbourofelini (Sansanosmilus and Barbourofelis), the transition between the two being represented in the fossil record by Prosansanosmilus peregrinus Heizmann et al. 1980.

scholarly journals A new genus and species of characid fish from the Amazon basin: the recognition of a relictual lineage of characid fishes (Ostariophysi: Cheirodontinae: Cheirodontini)

2008 ◽  
Vol 6 (4) ◽  
pp. 663-678 ◽  
Author(s):  
Cristina M. Bührnheim ◽  
Tiago P. Carvalho ◽  
Luiz R. Malabarba ◽  
Stanley H. Weitzman
Keyword(s):  
Amazon Basin ◽  
New Genus ◽  
Abdominal Cavity ◽  
Phylogenetic Position ◽  
New Taxon ◽  
New Genus And Species ◽  
Caudal Fin ◽  
Caudal Vertebrae ◽  
Fin Rays ◽  
Close Relationship

Amazonspinther dalmata, a new miniature characid from the streams of rio Purus and rio Madeira, right bank tributaries of the rio Amazonas, is described as a new genus and species of the subfamily Cheirodontinae. The unique characters of the new genus and species are the three remarkable black blotches on the base of the dorsal, anal, and caudal fins, the anteriormost proximal radial of the anal fin with an anteriorly extended lamina entering the abdominal cavity, and the extremely elongate caudal peduncle. The reduced number of ventral procurrent caudal-fin rays (7-9), and the hemal spines of only posterior one, two, or sometimes three caudal vertebrae directly articulating with the ventral procurrent caudal-fin rays further diagnoses the new taxon from remaining genera of the tribe Cheirodontini. The results of a phylogenetic analysis strongly support a close relationship between A. dalmata and Spintherobolus in the tribe Cheirodontini on the basis of fifteen unambiguous synapomorphies. Ten of these characters, previously hypothesized as exclusive synapomorphies for Spintherobolus, were now also identified in Amazonspinther, such as the pattern of exposed neuromasts on the head, the presence of a second pseudotympanum anterior to the first pleural rib, and the nearly discoidal coracoid bone. A discussion about the phylogenetic position of the closely related fossil †Megacheirodon to Spintherobolus and Amazonspinther is also provided. Convergent characters shared between Amazonspinther and the characid Priocharax are discussed in relation to miniaturization. Biogeographical implications of the diversification of Amazonspinther, Spintherobolus, and Megacheirodon lineages are discussed.

A New Genus and Species of Freshwater Stingray (Myliobatiformes, Dasyatoidea) from the Latest Middle Eocene of Utah, U.S.A.

2014 ◽  
Vol 88 (3) ◽  
pp. 497-503 ◽  
Author(s):  
Todd D. Cook ◽  
Jeffrey G. Eaton ◽  
Michael G. Newbrey ◽  
Mark V. H. Wilson
Keyword(s):  
Fossil Record ◽  
New Genus ◽  
Middle Eocene ◽  
Late Eocene ◽  
New Genus And Species ◽  
Green River ◽  
Lower Eocene ◽  
Head Formation ◽  
Freshwater Stingray ◽  
Crown Morphology

Teeth of a new freshwater dasyatoid ray recovered from the latest middle Eocene Brian Head Formation of southern Utah represent the youngest freshwater stingray so far known in the fossil record of North America. The crown morphology ofSaltirius utahensisn. gen. n. sp. exhibits strong sexual dimorphism, with the presumed males bearing two prominent margino-labial protuberances and a bifid cusp that produces a saltire-like outline. This unique crown separates this genus and species from any known extinct or extant myliobatiform, but does have some resemblance to the crown ofAsterotrygon maloneyifrom the lower Eocene Green River Formation of Wyoming. The occurrence ofS. utahensisin the Brian Head Formation provides additional evidence for the persistence of warm subtropical temperatures during the late Eocene in southern Utah.

A remarkable new genus of Mytilidae (Bivalvia) from the Lower Cretaceous of southwestern Gondwanaland

2004 ◽  
Vol 78 (6) ◽  
pp. 1187-1191 ◽  
Author(s):  
Erle G. Kauffman ◽  
Héctor A. Leanza
Keyword(s):  
Lower Cretaceous ◽  
Fossil Record ◽  
Rare Case ◽  
New Genus ◽  
New Taxon ◽  
Personal Observation ◽  
New Genus And Species ◽  
Surface Sculpture ◽  
Neuquen Basin ◽  
Neuquén Basin

The lower Cretaceous strata of the Neuquén Basin of Argentina are richly fossiliferous and characterized by diverse, primarily normal marine, molluscan-dominated faunas containing many interesting taxa. Among these, in the Lower Hauterivian part of the Agrio Formation at Cerro Mesa (Fig. 1), are diverse, coarsely ornate trigoniid bivalves of the genus Steinmanella Crickmay, 1930, and a new genus and species of ornate Mytilidae (Nodomytilus trigonimimus). The new taxon appears to be convergent in its surface sculpture on the Austral Gondwanian trigoniid Steinmanella transitoria (Steinmann, 1881). This may represent a rare case of convergence, or even mimicry, in the fossil record. The trigoniids have relatively low predation levels among bivalves (Kauffman, personal observation on fossil and recent populations). Convergence on the trigoniid morphotype could have been an adaptive advantage to frequently predated Mytilidae. The new taxon is described herein and compared to co-occurring Steinmanella.

Nyxis rostrocularis, a new genus and species of Paranannopinae Por, 1986 (Copepoda, Harpacticoida) from the Southern Atlantic deep sea

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 299-312 ◽  
Author(s):  
ELKE WILLEN
Keyword(s):  
Species Diversity ◽  
Deep Sea ◽  
New Genus ◽  
Weddell Sea ◽  
New Taxon ◽  
New Genus And Species ◽  
Sampling Locations ◽  
Cape Basin

The species diversity of Copepoda Harpacticoida at several sampling locations in the Southern Atlantic has been investigated. From the obtained multicorer samples, a new taxon of Paranannopinae Por, 1986, Nyxis rostrocularis gen. nov., sp. nov., has been collected, which is described in the present paper. Specimens of the taxon have been encountered in the Angola Basin (DIVA 1 stations 325 and 346), in the Weddell Sea (ANDEEP station 138) and the Cape Basin (DIVA 1I station 36). Nyxis gen. nov. belongs to the group of paranannopid taxa bearing mouthpart aesthetascs. It can be characterised by several autapomorphies discussed in this paper, but takes up a quite isolated position within the Paranannopinae bearing mouthpart aethetascs.

scholarly journals <i>Navilithus altivelum</i>: a remarkable new genus and species of deep photic coccolithophores

2006 ◽  
Vol 25 (2) ◽  
pp. 141-151 ◽  
Author(s):  
Jeremy R. Young ◽  
Harald Andruleit
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
New Genus ◽  
Molecular Genetic ◽  
New Taxon ◽  
New Genus And Species ◽  
Significant Addition ◽  
A New Species ◽  
Genetic Results ◽  
Basal Structure

Abstract. A very distinctive new deep-photic coccolithophore is described from the NE Indian Ocean. The new species is trimorphic with: 200–300 body coccoliths bearing low spines attached by narrow stems to a basal narrow-rimmed placolith structure; up to 18 circum-flagellar coccoliths with tall sail-like spines; and up to 22 coccoliths with moderately elevated spines occurring both around the circum-flagellar coccoliths and antapically. These features make the coccolithophore unique and require placement in a new species and genus. The basal structure, however, shows similarities to a recently recognized group of narrow-rimmed placoliths. Hence, the new coccolithophore provides some support for this grouping as a significant addition to our understanding of coccolithophore biodiversity, and potentially an explanation for a set of anomalous molecular genetic results. In addition the new taxon provides further evidence that the deep-photic coccolithophore community is more diverse than has been assumed.

A new cockroach (Blattaria: Caloblattinidae) from the Upper Triassic Xujiahe Formation of Sichuan Province, southwestern China

2013 ◽  
Vol 44 (2) ◽  
pp. 167-174
Author(s):  
Yan Fang ◽  
Haichun Zhang ◽  
Bo Wang ◽  
Daran Zheng
Keyword(s):  
Elemental Analysis ◽  
Anterior Margin ◽  
New Genus ◽  
Sichuan Province ◽  
Upper Triassic ◽  
Southwestern China ◽  
New Taxon ◽  
New Genus And Species ◽  
X Ray ◽  
Xujiahe Formation

A new genus and species of the cockroach family Caloblattinidae, Dazhublattella lini gen. et sp.n., is described from the Upper Triassic Xujiahe Formation of Sichuan Province, in southwestern China. The new taxon is similar to the Triassic Caloblattina mathildae (Geinitz, 1883) (Vršanský & Ansorge 2007) in the venation and pattern, but differs in the less elongated forewing with arched anterior margin. An elemental analysis of the wing is undertaken using Energy Dispersive X-ray analysis.

A new genus and species of groundwater isopod of the family Protojaniridae (Isopoda: Asellota: Gnathostenetroidoidea) from southern Chile

Zootaxa ◽  
2021 ◽  
Vol 4966 (5) ◽  
pp. 550-562
Author(s):  
JORGE PÉREZ-SCHULTHEISS ◽  
GEORGE D. F. WILSON
Keyword(s):  
New Genus ◽  
South American ◽  
New Taxon ◽  
Southern Chile ◽  
New Genus And Species ◽  
The Third ◽  
The Family ◽  
Apical Lobe ◽  
Antennal Scale ◽  
Freshwater Springs

A new asellotan isopod of the family Protojaniridae Fresi, Idato & Scipione, 1980 is described from freshwater springs in the Osorno province, Los Lagos region, southern Chile. Wiyufiloides osornoensis gen. & sp. n. is the third South American protojanirid species and the first known groundwater isopod in Chile. The new genus and species is principally characterized by the presence of a vestigial antennal scale, a strongly subchelate pereiopod I and the absence of an apical lobe on the protopod of pleopod II. The new taxon is described in detail and figures are given. 

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