Results 181 to 190 of about 3,091,337 (242)

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

The Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri, Humberto L. Andrelino, Sergio Bogan, José P. O'Gorman, Federico Agnolín, Brian L. Sidlauskas, Nahuel Vega, Agustín G. Martinelli, José L. Birindelli   +8 more
wiley   +1 more source

Inflammatory Pseudotumour in Common Seal (Phoca vitulina): A Case Report. [PDF]

Vet Med Sci
De Pablo-Moreno JM, Canales R, Mainez M, Aradilla N, Chinchilla B, Porras N, Vargas-Castro I, Rodríguez-Bertos A.   +7 more
europepmc   +1 more source

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source

Drivers of tail evolution in squamates and their implications for the fossorial origin of snakes

The Anatomical Record, EarlyView.
Abstract The axial skeleton serves as the primary structural support in all vertebrates and is subdivided into five distinct regions: cervical, thoracic, lumbar, sacral, and caudal. Relaxation of constraints acting on the terminal end of the axial skeleton has led to remarkable variation in caudal vertebrae number across Squamata.
Olivia Binfield, Marco Camaiti, Lucy Roberts   +2 more
wiley   +1 more source

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

The Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga, Grazyelle Sebrenski da Silva, Maria Inês Braga de Oliveira, Jaydione Luiz Marcon, Ruben Dario Morales Gamba   +4 more
wiley   +1 more source

Identification of feeding apparatus components in a heterotrophic marine flagellate. [PDF]

J Cell Sci
Clifford G, Taylor SJP, Ishii M, Cisneros-Soberanis F, Akiyoshi B.   +4 more
europepmc   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

The 100 Diatom Genomes Project. [PDF]

PLoS Biol
Mock T, Bilcke G, Flaum E, Fu S, Hoch L, Moog K, Rijsdijk N, Ruck EC, Bishop IW, Duchene C, Gilbertson R, Hopes A, Johns C, Manfellotto F, Roberts WR, Belshaw N, Chandola U, Chaerle P, Chepurnova O, Deleu D, D'hondt S, Di Costanzo F, Dudin O, Flori S, Gaikwad T, Groisillier A, Hall A, Ji P, Lavier-Aydat LJ, Lewis WH, Menicot S, Pinseel E, Pottier E, Sarkozi K, Smerilli A, Strauss J, Thierens S, Toseland A, Touhami Y, Utting R, Van Bel M, van Oosterhout C, Wu Y, Yang F, Allhusen E, Bolton JJ, Bowler C, Brinkhoff T, Poehlein A, Brovarone T, Chen N, Clark G, Clark MD, Copetti D, Cui Z, Deng B, Jian J, John U, Jungblut AD, Kang J, Kristoffersen JB, Lee J, Liu S, Mann DG, Medlin L, Moulton V, Radojicic J, Sato S, Trobajo R, Wolf K, Yamada N, Ye N, Zhang L, Zhuang Y, Dey G, Di Dato V, Helliwell K, Jaubert M, Kroth PG, Montresor M, Romano G, Rynearson TA, Talag J, Valentin KU, Vincent F, Waller RF, Wheeler G, Alverson AJ, Barry K, Boston L, Falciatore A, Ferrante MI, Guo J, Grimwood J, Hayes R, Herdean A, Jenkins J, Kim M, Kooistra WH, Kuo A, Lipzen A, Poulsen N, Schmutz J, Tirichine L, Vandepoele K, Verret F, Vyverman W, Grigoriev IV.   +107 more
europepmc   +1 more source

Male reproductive system in stenopodidean shrimps: Unveiling basal reproductive traits in shrimp‐like Pleocyemata (Stenopodidae and Spongicolidae)

The Anatomical Record, EarlyView.
Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira, Lucas Rezende Penido Paschoal, Fernando José Zara   +2 more
wiley   +1 more source