Results 31 to 40 of about 35,657 (246)
The Anatomical Record, EarlyView.Abstract Extant turtles occupy freshwater, marine, and terrestrial habitats, and their nasal region provides important evidence for the evolution of respiration‐ and sensory‐related cranial morphology. However, developmental data on the turtle nasal capsule remain limited, particularly in Pleurodira.
Kai Ito +5 more
wiley +1 more source
Analysis of calcium levels in the carapace of rajungan crab (Portunus pelagicus)
, 2023 This research aims to determine differences in calcium levels in small crabs (Portunus pelagicus) in three parts, namely carapace/shell, claw feet and abdomen. This research was conducted from May to June 2023 at UD. Bumi Nusantara Pattiro Sompe, Sibulue,
Angreni, Husni +2 more
core +2 more sources
The Anatomical Record, EarlyView.Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva +2 more
wiley +1 more source
On the origin and variation of colors in lobster carapace
Physical Chemistry Chemical Physics, 2015 We present evidence that astaxanthin enolate may form in a protein complex environment, and is associated with a large bathochromic absorption shift to give the blue–black color of lobsters.
Shamima Begum +8 more
openaire +4 more sources
The Anatomical Record, EarlyView.Abstract Composed of various minerals, the eggshell provides ideal conditions for embryonic development, and understanding its composition and structure is essential for clarifying its relationship with bone formation. This study characterized the structure and mineral profile of the Rhinoclemmys punctularia punctularia eggshell in relation to ...
Igor Mathias Trindade Lemos +8 more
wiley +1 more source
Brazilian Journal of BiologyChelonoidis Dcarbonaria and C. denticulata are two tortoises which are widely distributed Brazil. Although they occur sympatrically in different areas, C. carbonaria prefers open areas, while C. denticulata chooses forest areas. Significant morphological
MS Barros +3 more
doaj +1 more source
The burrow structure of Minuca osa (Brachyura: Ocypodidae) from the eastern Montijo Gulf, Panamanian Pacific [PDF]
NaupliusBetween November 2022 and March 2023, thirty-seven Minuca osa burrow plaster casts were poured while simultaneously collecting biometric data of the occupants in Ponuga, eastern Montijo Gulf, Panamanian Pacific. Casts revealed a highly variable structure
Roberto C. Lombardo
doaj +1 more source
Assessment of intraspecific skull variation in the Campanian baenid turtle Plesiobaena antiqua
The Anatomical Record, EarlyView.Abstract Baenids are freshwater paracryptodiran turtles with a fossil record ranging from the Early Cretaceous to the Eocene. The baenid Plesiobaena antiqua is the most common turtle in the Campanian (Late Cretaceous) Dinosaur Park Formation in Canada, but the apparent intraspecific variation remains poorly understood.
Scott Bellotti +4 more
wiley +1 more source
Effect of surface roughness on drag of loggerhead carapace [PDF]
, 2008 The present investigation prim arily studies the effect of surface roughness on the drag coefficient, Cd of a Loggerhead sea turtle carapace using a subsonic wind tunnel.
Ishak, Iskandar Shah +7 more
core +3 more sources
Cristid obliqua morphology as a correlate of diet in lorisoids
The Anatomical Record, EarlyView.Abstract Methods for elucidating dietary patterns from dental morphology have provided much insight into molar form, function, and diet in extinct taxa. However, many methods rely on the collection of homologous landmarks (like shearing crest lengths), or computationally intensive and nuanced metrics that capture shape (like dental topography). Here, a
Keegan R. Selig
wiley +1 more source