# mesozoicmammalmonday museum30 charlesdarwin proboscidea wip sketch paleoart california marinemammalmonday 18thcentury archives sciart mammals bats nathist mammal marsupials opossums australia southamerica reproduction mammalogy zoology overttcn 3ddata 1000postcards squirrels redsquirrel bhlib

Last dissertation chapter on the life history of multituberculate mammals published ! Here's artwork by of a Mesodma mother with her relatively precocial offspring 🧵
https://t.co/9pQDuMWWHA

119 533
2022-07-19

Scelidotherium leptocephalum is the name for a species of extinct ground sloth, first described based on a partial skeleton discovered by Charles Darwin in 1833.

4 5
2021-11-29

Started working on a little Phosphatherium today. Might develop the sketch later this week after I wrap up a few projects.

10 75
2021-04-27

One of the new species, Pontolis barroni, is named after our colleague John Barron from the in honor of his contributions to biostratigraphy of and the North Pacific! For this species we have males, females & juveniles!
3/n

3 10
2020-11-17

The Zerda, a small nocturnal fox, from Ebenezer Sibly, An universal system of natural history including the natural history of man, etc. 1509/871 https://t.co/sxBBk2Mp6e

6 18
2020-10-26

The spectral bat (Vampyrum spectrum) is the largest chiropter in the New World. This drawing is from the Royal Botanical Expedition to New Spain (1787-1803), one of the most ambitious scientific expeditions in

6 19
2020-10-05

Ecstatic to be illustrating this amazing book series! The first four books out MAY 2021! Here is the preliminary Lisowicia for the, you guessed it, Lisowicia book (book 4). Lisowicia is a Late Triassic dicynodont (a distant relative of ours) https://t.co/4W3dWC5dO2

46 264
2020-09-28

Just a red panda I drew for a friend a few years ago.

1 5
2020-09-19

Here is the revised version with the correct text. I wish Twitter would let me edit my tweets. I am just the worst at proofreading! @

46 202
2020-08-17

Today I decided to keep working on my plate of recently extinct felids of the Americas. Added sketches of two more taxa: Homotherium serum (the Scimitar-toothed Cat, a machairodontine) and Panthera atrox (the American Lion, a pantherine)

259 990
2020-08-17

There are over 110 species of in the Americas (primarily South America) yet most people don’t know about them. Here is a small sample of them. These sketches are of the tribe Didelphini of Didelphid marsupials, some of the most common

683 1716
2020-07-27

I finally have a bit of time to sketch in the morning. The recent study on Thylacosmilus published last Friday made me want to sketch some portraits of this amazing Late Miocene-Pliocene South American sparassodont

75 422
2020-06-29

Morning sketch. Portrait of Tetraceratops insignis, a small basal sphenacodontian synapsid (probably close to therapsids) from Early Permian North America. A distant relative to all of us mammals.

106 526
2020-06-01

I have been wanting to reconstruct Entelodonts for a while, so for today’s I decided to sketch this Daeodon, a huge entelodon with a 90 cm skull that lived in the Oligocene and Miocene of North America. I really enjoyed this one

97 491
2020-05-11

It's Most people associate with but Marmosa robinsoni (Robinson's mouse opossum) is from Central & Unlike most other marsupials mouse opossum's lack a pouch for

5 27
2020-04-07

It appears there is something called So here’s a red squirrel with a hazelnut. Did you know that a squirrels drey has two rooms & one is used as a nursery?

3 23
2019-11-25

Boas and Paulli’s “The Elephant’s Head" is a beautifully illustrated work dedicated to the craniofacial anatomy of the elephant, presented alongside several other mammals for comparison. Explore v.1 (1908) in via ➡️ https://t.co/wDTehhQ51y 🐘

92 251
2019-11-19

For your Monday morning viewing pleasure, we give you the brain of a kangaroo (from George Robert Waterhouse's 1846 "A Natural History of the Mammalia", new to this week via ): https://t.co/XpaCzunxqp

4 8
2019-10-14

Canids of South America, including species extinct in the last 12,000 years. Canids are surprisingly diverse in South America. Some hypercarnivore taxa went extinct 12-10,000 years ago (along with most of the megafauna). Did this in sketch style

233 567
2019-09-16