Discover and read the best of Twitter Threads about #fossils

Most recents (2)

It’s #Croctober, so that means I’ll be featuring croc-relatives using the hashtag #AtoZcrocs. Follow along this month for a deep dive into how weird croc #evolution really got.
A is for Anatosuchus, a notosuchian from the Cretaceous of Niger. It’s name means “duck-crocodile,” for it’s oddly flared snout. #Croctober #AtoZcrocs #fossils

📸 Sereno and Larsson, 2009: doc.rero.ch/record/200234/… skeleton of Anatosuchus, flared snout to the left, body out to the right, missing most of its tailArtist's reconstruction of Anatosuchus in an upright posture, duck-like snout gaping to show off flared shape
Anatosuchus’ upright limb posture and funky snout might have helped it wade in the shallows and root around for small prey. #Croctober #AtoZcrocs #fossils

📸 Sereno and Larsson, 2009: doc.rero.ch/record/200234/… Photographs of Anatosuchus' skull in dorsal, ventral, and lateral views, snout flares out like a duck bill, but is filled with relatively small teethLine drawing interpretation of the skull shown in similar views as the photographs, snout flares out like a duck bill, but is filled with relatively small teeth
Read 55 tweets
Interesting outcome of the DePalma et al #PNAS paper will be implications for study & interpretation of K-Pg 'Event Deposits' close to the #Chicxulub crater. These are fascinating outcrops which *could* record the same processes as 'Tanis' but have proved controversial.. (1/)
Many marine K-Pg boundary sites around the Gulf of Mexico contain evidence for high-energy deposition by processes linked to the immediate aftermath of the impact event such as earthquakes, tsunamis/seiches. But a 'catastrophist' vs. 'non-catastrophist' debate has raged.. (2/)
The 'non-catastrophist' argument has centered on biostratigraphic evidence - i.e. that diagnostic Cretaceous #fossils are found stratigraphically *above* these deposits - and suggestions they are sequence boundaries/lags/hiatuses linked simply to sea level change. (3/)
Read 16 tweets

Related hashtags

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just three indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3.00/month or $30.00/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!