Tags » Tetrapods

Tulerpeton restoration

A reconstruction
puts the in situ bones back into their in vivo places.

A restoration
imagines the bones and soft tissues that are missing from the data. 236 more words

Basal Tetrapod

Sampling strategy and evolutionary transitions

Earlier this year, we published an article on eye size evolution of early tetrapods in PNAS. Dan-Eric Nilsson wrote a very nice commentary on the paper in… 374 more words

Vision

My Swim Gym Can Heal your Spine - Part 1

Nine months ago I joined a gym. I didn’t join to use its machines, but mainly to swim, use the sauna and steam room. However the gym also offered yoga classes, so I have returned to a yoga practice that I abandoned about 10 years ago. 674 more words

The Coal Age Galapagos

The sea cliffs at Joggins, Nova Scotia are a thing to behold – kilometers of gently inclined, layer-cake geology recording thousands of years of a Carboniferous coal swamp’s ebb and flow. 620 more words

Fieldwork

Tulerpeton becomes the last common ancestor of all Reptilia (=Amniota)

Yesterday we looked at the nesting of Tulerpeton (Lebedev 1984; Latest Devonian; PIN 2921/7) as a basal reptile, rather than a basal tetrapod, which is the traditional nesting. 498 more words

Reptile Family Tree

Devonian fish heads

New data on February 27, 2017
focuses on Kenichthys (Zhu and Ahlberg 2004), a sarcopterygian fish in which the posterior naris has migrated to the jaw line, on its way to the inside of the mouth (Fig. 892 more words

Reptile Family Tree

Acherontiscus at the base of the caecilian clade

Acherontiscus caledoniae (Carroll 1969; Namurian, Carboniferous; 1967/12/1 Royal Scottish Museum; Fig. 1) is a tiny slender aquatic amphibian with vestigial limbs and a large pectoral girdle. 181 more words

Reptile Family Tree