TERLINGUACHELYS FISCHBECKI, A NEW GENUS AND SPECIES OF SEA TURTLE (CHELONIOIDEA: PROTOSTEGIDAE) FROM THE UPPER CRETACEOUS OF TEXAS

2004 ◽  
Vol 78 (6) ◽  
pp. 1163-1178 ◽  
Author(s):  
THOMAS M. LEHMAN ◽  
SUSAN L. TOMLINSON
Keyword(s):  
Upper Cretaceous ◽  
New Genus ◽  
Sea Turtle ◽  
New Genus And Species

Terlinguachelys fischbecki, a new genus and species of sea turtle (Chelonioidea: Protostegidae) from the Upper Cretaceous of Texas

2004 ◽  
Vol 78 (6) ◽  
pp. 1163-1178 ◽  
Author(s):  
Thomas M. Lehman ◽  
Susan L. Tomlinson
Keyword(s):  
National Park ◽  
Upper Cretaceous ◽  
New Genus ◽  
Sea Turtles ◽  
Sea Turtle ◽  
Unique Combination ◽  
New Genus And Species ◽  
Big Bend National Park ◽  
Big Bend ◽  
Lower Jaw

Remains of a large sea turtle, Terlinguachelys fischbecki n. gen. and sp., were recovered from paralic deposits of the Upper Cretaceous (Campanian) Aguja Formation in Big Bend National Park, Texas. T. fischbecki is a primitive protostegid that retains a constricted humerus, well ossified plastron and costals, prominent retroarticular process on the lower jaw, and long slender femora; however, it has some features, such as a prominent tubercle at the base of the scapular acromion process, found elsewhere only in derived leatherback sea turtles. The unique combination of primitive and derived traits in T. fischbecki illustrates further diversity among Cretaceous sea turtles and another case of parallelism common in sea turtle phylogeny.

Aldebarania arenitea, a new genus and species of Astropectinidae (Asteroidea; Echinodermata) from the Maastrichtian (Upper Cretaceous) Peedee Formation of North Carolina

1995 ◽  
Vol 69 (2) ◽  
pp. 376-380 ◽  
Author(s):  
Daniel B. Blake ◽  
Keith Sturgeon
Keyword(s):  
North Carolina ◽  
Shallow Water ◽  
Phylogenetic Relationships ◽  
Upper Cretaceous ◽  
New Genus ◽  
Water Environment ◽  
New Genus And Species ◽  
Marine Fauna ◽  
Shallow Water Environment

Aldebarania arenitea (Astropectinidae; Asteroidea; Echinodermata) is described from the Rocky Point Member of the Maastrichtian (Upper Cretaceous) Peedee Formation of North Carolina. A turbulent, shallow-water environment is suggested by sedimentary features, a diverse marine fauna, and the morphology of Aldebarania. Aldebarania appears to be a partial ecological equivalent of living Astropecten and Luidia; however, phylogenetic relationships within the Astropectinidae are unstudied and the origin of similarities is unknown.

scholarly journals Two new genera of Cretaceous dustywings in amber from northern Myanmar (Neuroptera: Coniopterygidae)

2016 ◽  
pp. 1 ◽  
Author(s):  
Michael S. Engel
Keyword(s):  
Upper Cretaceous ◽  
New Genus ◽  
New Genera ◽  
New Genus And Species ◽  
Crown Group ◽  
Labial Palpus ◽  
Head Form

Two new genera and species are added to the fauna of dustywings (Coniopterygidae) preserved in Upper Cretaceous (earliest Cenomanian) amber of northern Myanmar, doubling the described diversity from this deposit.  One genus is of the subfamily Aleuropteryginae and described as Achlyoconis heptatrichia Engel, new genus and species.  This species is noteworthy for the infumate and patterned wings and unique presence of seven prominent setae positioned on thickenings occurring along the length of the forewing media.  Paranimboa litotes Engel, new genus and species, is representative of the subfamily Coniopteryginae and distinctive among Mesozoic groups for the unbranched Rs, among other traits.  In addition, a peculiar larva preserved alongside the holotype of P. litotes is described.  While having a prothoracic and head form similar to aleuropterygines as well as a labial palpus with only two palpomeres, diagnostic for Coniopterygidae, the antenna bears four articles rather than the two present in crown-group dustywings.  A revised key to the genera of Cretaceous Coniopterygidae is provided.

A new genus and species of Praeaulacidae (Hymenoptera: Evanioidea) from Upper Cretaceous Myanmar amber

2015 ◽  
Vol 55 ◽  
pp. 19-24 ◽  
Author(s):  
Longfeng Li ◽  
Alexandr P. Rasnitsyn ◽  
Chungkun Shih ◽  
Dong Ren
Keyword(s):  
Upper Cretaceous ◽  
New Genus ◽  
New Genus And Species

scholarly journals Brittle stars looking like starfish: the first fossil record of the Astrophiuridae and a remarkable case of convergent evolution

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e8008
Author(s):  
Ben Thuy ◽  
Andy Gale ◽  
Lea Numberger-Thuy
Keyword(s):  
Fossil Record ◽  
Upper Cretaceous ◽  
New Genus ◽  
Parallel Evolution ◽  
Molecular Evidence ◽  
New Genus And Species ◽  
Brittle Stars ◽  
Remarkable Case ◽  
The Family ◽  
A New Species

The genus Astrophiura, which ranks among the most extraordinary of modern brittle stars, is the type genus of the recently resurrected family Astrophiuridae within the order Ophiurida. On account of its absurdly enlarged and strongly modified lateral arm plates, Astrophiura bears a closer resemblance to a pentagonal starfish than to a typical ophiuroid. Although molecular evidence suggests an ancient origin of the Astrophiuridae, dating back at least to the Early Jurassic, not a single fossil astrophiurid has been reported so far. Here, we describe dissociated lateral arm plates from the Campanian of Cringleford near Norwich, UK, and the Maastrichtian of Rügen, Germany (both Upper Cretaceous) with unambiguous astrophiurid affinities and assign these to a new species, Astrophiura markbeneckei. This represents the first fossil record of the family. In addition, the Rügen material included lateral arm plates that superficially resemble those of A. markbeneckei sp. nov. but differ in having spine articulations that are typical of the ophionereidoid family Amphilimnidae. We assign these plates to a new genus and species, Astrosombra rammsteinensis, an extinct amphilimnid with morphological modifications similar to those of Astrophiura, and thus representing a remarkable case of parallel evolution amongst brittle stars looking like starfish.

Homeomorphy in the Asteroidea (Echinodermata); a new Late Cretaceous genus and species from Colorado

2002 ◽  
Vol 76 (6) ◽  
pp. 1007-1013 ◽  
Author(s):  
Daniel B. Blake ◽  
Barry S. Kues
Keyword(s):  
Upper Cretaceous ◽  
New Genus ◽  
New Genus And Species ◽  
Limited Evidence ◽  
Morphological Response ◽  
Shallow Marine ◽  
Body Form ◽  
Selective Pressures ◽  
Modern Species ◽  
The Family

Codellaster keepersae new genus and species, from the Upper Cretaceous Codell Sandstone Member of the Carlile Shale of Colorado (U.S.A.), is assigned to the asteroid (Echinodermata) family Goniasteridae. Although clearly a goniasterid, the flattened body form and details of morphology of C. keepersae are remarkably similar to corresponding features of the modern astropectinid Astropecten regalis and also of the luidiid Luidia (Platasterias) latiradiata. The discovery facies of C. keepersae includes low-angle crossbeds and asymmetrical ripple marks that are suggestive of a very shallow marine environment. Both the modern species occur in shallow, turbulent settings, and homeomorphy beween ancient and modern asteroids suggests similar selective pressures and evolutionary responses. Limited evidence suggests goniasterids might have been more common in shallower waters during the Cretaceous than they are today, and absence of modern Codellaster-like goniasterids indicates that the family abandoned these habitats, although the fundamental morphological response to such settings remained viable for asteroid organization.

The oldest short-tailed whipscorpion (Schizomida): A new genus and species from the Upper Cretaceous amber of northern Myanmar

2020 ◽  
Vol 106 ◽  
pp. 104227
Author(s):  
Sandro P. Müller ◽  
Jason A. Dunlop ◽  
Ulrich Kotthoff ◽  
Jörg U. Hammel ◽  
Danilo Harms
Keyword(s):  
Upper Cretaceous ◽  
New Genus ◽  
New Genus And Species

A new genus and species of Asteriidae (Asteroidea; Echinodermata) from the Upper Cretaceous (Coniacian) of Angola, Africa

PalZ ◽  
1996 ◽  
Vol 70 (1-2) ◽  
pp. 181-187 ◽  
Author(s):  
Daniel B. Blake ◽  
Gérard Breton ◽  
Serge Gofas
Keyword(s):  
Upper Cretaceous ◽  
New Genus ◽  
New Genus And Species
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