A new genus and species of raninid crab, Doraranina manleyi (Decapoda: Raninoidea: Lyreididae) from the lower Eocene of Oregon

2019 ◽  
Vol 292 (2) ◽  
pp. 121-128
Author(s):  
Eric P. Gustafson ◽  
Torrey Nyborg ◽  
Barry W.M. van Bakel
Keyword(s):  
New Genus ◽  
New Genus And Species ◽  
Lower Eocene

A 100 million year old gecko with sophisticated adhesive toe pads, preserved in amber from Myanmar

Zootaxa ◽  
2008 ◽  
Vol 1847 (1) ◽  
pp. 62 ◽  
Author(s):  
E. NICHOLAS ARNOLD ◽  
GEORGE POINAR
Keyword(s):  
Body Size ◽  
Lower Limb ◽  
Upper Cretaceous ◽  
New Genus ◽  
Skeletal Remains ◽  
New Genus And Species ◽  
Lower Eocene ◽  
Adult Body ◽  
Firm Evidence ◽  
Large Adult

A new genus and species of gecko is described from a posterior lower limb and foot, and a partial tail, preserved in Lower Cretaceous amber from Myanmar that is 97–110My old. It appears to be the oldest unequivocal fossil gecko, predating fragmentary skeletal remains from the Upper Cretaceous and being 43–56 My older than Yanatarogecko from the Lower Eocene, previously the oldest known gecko preserved in amber. It also provides firm evidence that gekkotans and possibly gekkonids were in Asia at this time. The Myanmar specimen shows, that the distinctive foot proportions and sophisticated adhesive mechanism, involving pads on the toes with transverse lamellae probably bearing numerous hairlike setae found in many modern geckos, had already evolved around 100My ago. The specimen is very small, even compared with juveniles of the smallest living geckos. However, the high numbers of lamellae on its toe pads suggest it is from a juvenile of a species with relatively large adult body size.

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.

scholarly journals The first psychodid (Diptera: Psychodidae: Phlebotominae) species from the Lower Eocene amber of Vastan, Gujarat, India

Zootaxa ◽  
2009 ◽  
Vol 2152 (1) ◽  
pp. 63-68 ◽  
Author(s):  
MÓNICA M. SOLÓRZANO KRAEMER ◽  
RÜDIGER WAGNER
Keyword(s):  
New Genus ◽  
Western India ◽  
New Genus And Species ◽  
Lower Eocene ◽  
Relationship Of ◽  
The Relationship ◽  
Eocene Amber

The new genus and species, Phlebotoiella eoindianensis, from the Eocene Vastan amber deposits in western India is described and illustrated. This marks the first Psychodidae to be described from Vastan amber. The relationship of this new genus is discussed as well as its biogeographic implications.

A fossil caddisfly (Insecta: Trichoptera) from the Eocene of Colorado

Zootaxa ◽  
2018 ◽  
Vol 4403 (2) ◽  
pp. 389
Author(s):  
JASON L. ROBINSON ◽  
M. JARED THOMAS ◽  
SAM W. HEADS
Keyword(s):  
Body Size ◽  
New Genus ◽  
Green River Formation ◽  
New Genus And Species ◽  
Green River ◽  
Lower Eocene ◽  
Adult Body Size ◽  
Adult Body ◽  
Terminal Genitalia ◽  
Large Adult

A new genus and species of fossil caddisfly (Insecta: Trichoptera) from the Lower Eocene (Ypresian) Green River Formation of Colorado is described. Litholimnephilops yinani gen. et sp. nov. is the first adult caddisfly to be described from the Green River Formation, and is characterized by large adult body size, presence of ocelli, dark leg spines, and a lack of terminal crossveins in the anterior anastomosis region of the forewings. Terminal genitalia are not visible in the preserved specimen. Familial placement is uncertain, though similarities with the families Limnephilidae and Phryganeidae are observed. 

Joecalcinus, a new hermit crab genus from the Eocene of northern Italy: the second Cenozoic representative of the extant family Calcinidae (Decapoda, Anomura)

2020 ◽  
Vol 296 (1) ◽  
pp. 101-105
Author(s):  
René H.B. Fraaije ◽  
Claudio Beschin ◽  
Alessandra Busulini ◽  
Giuliano Tessier ◽  
John W.M. Jagt ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Hermit Crab ◽  
New Genus ◽  
Northern Italy ◽  
New Genus And Species ◽  
Lower Eocene ◽  
The Family

A diminutive paguroid shield from Lower Eocene strata in the Lessini Mountains (northern Italy), recorded several years ago as Paguristes sp. (sensu Beschin et al. 2016), is here transferred to the family Calcinidae Fraaije, Van Bakel & Jagt , 2017, on the basis of the presence of an intra- gastric Y-linea. The new genus and species, Joecalcinus bolcensis, erected here constitute the second known extinct member of this family. We postulate that calcinids derived from the Annuntidiogenidae Fraaije, 2014 during the Late Cretaceous.

A new genus and species of Parthenopidae MacLeay, 1838 (Decapoda: Brachyura) from the lower Eocene of Spain

2019 ◽  
Vol 39 (3) ◽  
pp. 303-311
Author(s):  
Fernando A Ferratges ◽  
Samuel Zamora ◽  
Marcos Aurell
Keyword(s):  
New Genus ◽  
New Genus And Species ◽  
Lower Eocene

Arcticanodon dawsonae, a primitive new palaeanodont from the lower Eocene of Ellesmere Island, Canadian High Arctic

2004 ◽  
Vol 41 (6) ◽  
pp. 757-763 ◽  
Author(s):  
Kenneth D Rose ◽  
Jaelyn J Eberle ◽  
Malcolm C McKenna
Keyword(s):  
New Genus ◽  
High Arctic ◽  
Ellesmere Island ◽  
New Taxon ◽  
New Genus And Species ◽  
Canadian High Arctic ◽  
Lower Eocene ◽  
Incertae Sedis ◽  
Lower Jaw ◽  
Early Paleocene

A new genus and species of palaeanodont, Arcticanodon dawsonae, is based on a single lower jaw fragment from lower Eocene (Wasatchian) strata of the Margaret Formation, Eureka Sound Group, on central Ellesmere Island, Nunavut. The new taxon is more derived than early Paleocene Escavadodontidae, but lacks derived traits of Metacheiromyidae. It is therefore most similar to primitive epoicotheriids, although the similarities are essentially in plesiomorphic features. Consequently, Arcticanodon dawsonae is classified as Palaeanodonta, incertae sedis, pending discovery of more complete specimens.

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