# sundayfishsketch placoderms fossilfishweek paleostream paleoart fish sketches sciart scicomm cretaceous pycnodonts catfish art paleontology dunkleosteus

Bothriolepis

A placoderm found all over the world, its size ranges from 30 cm to 1.7 meters depending on the species

ALT: Some specimens have retained soft tissue, one had organs that could be homologous to lungs, however there's no proof of actual lungs in placoderms

3 22
2021-05-03

06. Describe Your Character Creation Process
I'll have a list of character traits / reference images that I'll try to make sure are reflected. E.g Gummie was sarcastic and abrasive so I tried to get that across meanwhile for Perfect I had a bunch of ref images of placoderms.

0 0
2021-04-25

So Mawframe huh? Placoderms fish got some cool teeth so why not draw my excal, Saint with some of em???

0 3
2021-04-19

Always thought the Skin-Fang ones were Placoderms.

0 28
2021-04-11

We also figured out that at least in our placoderm sample the osteocytes branch about the same number of times as human osteocytes do!

But this is all preliminary as this is a sample of one.

1 57
2021-04-01

Antarctaspis

A placoderm found in the Lashly mountains, not much is known about it since the type specimen is known only by a partial head shield

ALT: similar placoderms have been discovered in Australia but its unknown if they represent the same genus or distinct genera

4 20
2021-03-02

I’ve missed the last couple of challenges. I was still short on time really didn’t want to miss a 3rd; especially when the brief was

1 16
2021-02-22

offers today:
Qarmoutus, Protosphyraena, Piranhamesodon and Stensioella.

68 343
2021-02-19

Dunkleosteus terreli. Gran pez carnívoro acorazado del Devónico que estuvo en la cima de la cadena alimentaria de su época. Como otros placodermos, estaba parcialmente cubierto por una coraza ósea. Sus dientes en forma de cuchilla eran de hueso y poesía una potente mordida.

62 225
2021-02-04

More fish from the old PhD lab group: et al. say 'ello to Ellopetalichthys, a middle Devonian petalichthyid placoderm from the Canadian Arctic.

https://t.co/maGqwOZXnB

19 55
2020-09-21

SHARK WEEK FACTS- Monday
Dunkeleosteus terrelli

-Large placoderm (armored) fish

-Lived through the Late Devonian period

-Uses it sharp skull to chop and chomp food. That's very metal.

-Very bad at kissing

-Some media depictions have a xenomorph tongue for some reason.

3 4
2020-08-13

I think she might be a placoderm. But then again, if current cladistics are to be believed, aren't we all? (Side note: Let me know if you guys would wanna see a full skeletal diagram. Her ribs are just derived gill arches.)

30 240
2020-08-05

you could give some love to ostracoderms, only earth archives has given them any love and eons had them in the same video as placoderms so of course they got overshadowed by dunkle, idk if it could give you enough content tho u.u

0 2
2020-07-16

Large filter feeding fishies were at in the Paleaozoic too! Toothless placoderm Titanichthys was likely hoovering up plankton in the Devonian. Well done PhD student on publishing his master's research. Open Science https://t.co/K5pIDcQFRf

27 99
2020-05-20

“Gardenhead and Jointed Neck”.
Heterosteus asmussi, a 6 meter long freshwater placoderm fish from the Devonian. It may have been an ambush predator, spending most of its time close to the sediment.

I really liked painting this one.

49 243
2020-04-21

Eai pessoal, que horas são em? É hora de adquirir o saber!
Hoje iremos falar um pouco sobre o incrível Dunkleosteus(Dunkleosteus terrelli).
Antes vamos falar sobre o período Devoniano. Os especialistas os chama de " idade dos peixes, pois surgem os placodermos+

2 4
2020-04-03

Speculative parasitism in prehistory:
- Parasitic radiodontids
- Parasitic trilobites
- Cleaning symbiosis in placoderms
- Condonts infected with tapeworm larvae

https://t.co/dZP27pb68C

20 54
2020-02-06

PLACODERMS ARE BETTER THAN YOU
here is why..

In humans if our spine fuses its hella pathological, and can be completely debilitating

In their back bones fuse as part of their physiology.

Its just a part of growing up dunk.

Paper: https://t.co/kp1a1oXfL1

23 142
2020-01-03

Yeah the gnathal plates in placoderms are derived from teeth that grow outwards in in a ring instead of in rows
They also have the same structure as their scales proving that teeth evolved from scales

1 3
2019-12-04