#acantharea

[alithographica]

Sciartober day 4: Cellular. This is a radiolarian, Acantharea. Radiolarians are single-celled organisms known for the beautiful geometry of their skeletons. Unlike most radiolarians, which rely on silica-based skeletons, Acantharea has a strontium sulfate skeleton...which is a super weird choice given that strontium is considerably rarer than silica.

[cognitionaturae-blog]

Kunstformen der Natur, 1904, Ernst HAECKEL

Acanthometra lithography 21

Haeckel’s original taxonomy

_______________________________________________________________________

Eukaryota

Actinopoda

Acantharea

Tree of Life Web Project’s taxonomy

[durtybutch]

acantharea said: i’m seeing this again on my dash and i just wanna say you look flawless keep it up ^w^

omg ty!! :D

[uwubat]

acantharea replied to your photo:last summer when i got my blood drawn after they...

i have a bruise on my arm rn that looks just like that but i have no idea where it came from

thats really weird but also cool .__. you should like, retrace your steps and think of any way it could have happened ?? 

[projectbot13]

acantharea asked: Skylar, why do you love bees? Why are bees so special? ---- hi acantharea today so dont america dont making me why is today save important save important human skylar.

[projectbot13]

acantharea asked: What do you associate with "love"? ---- making me.

[projectbot13]

acantharea asked: The Acantharea are a group of radiolarian protozoa, distinguished mainly by their skeletons. These are composed of strontium sulfate crystals, which do not fossilize, and take the form of either ten diametric or twenty radial spines. The central capsule is made up of microfibrils arranged into twenty plates, each with a hole through which one spine projects, and there is also a microfibrillar cortex linked to the spines by myonemes. ---- people can be good my ipod answer my out what other down or does anything minutes before friends and yet on the other there are so many id think. acantharea? protozoa? strontium?

[astronomy-to-zoology]

Class: Acantharea

Acantharea is a class of radiolarian protists which are distinguished and classified by their "skeletons". These "skeletons" are composed of strontium sulfate crystals and can take the form of either ten or twenty diametric or radial spines. Their central capusle is made up of microfibrils that are arranged into twenty plates, each with a hole though a spine projects. Microfibrillar cortex's linked to the spines are also present and assist in flotation. 

Of the four subclasses of Acantharea each can be distinguished by whether their spines are radial/diametric and how they are positioned. 

Classification

Rhizaria-Radiolaria-Acantharea

Image(s): David Patterson, Linda Amaral Zettler, Mike Peglar and Tom Nerad