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The impact of taphonomic data on phylogenetic resolution: Helenodora inopinata (Carboniferous, Mazon Creek Lagerstätte) and the onychophoran stem lineage

• Duncan J. E. Murdock, Sarah E. Gabbott, Mark A Purnell
• BMC Evolutionary Biology
• 2016

The origin of the body plan of modern velvet worms (Onychophora) lies in the extinct lobopodians of the Palaeozoic. Helenodora inopinata, from the Mazon Creek Lagerstätte of Illinois (Francis Creek… (More)

Decay of vertebrate characters in hagfish and lamprey (Cyclostomata) and the implications for the vertebrate fossil record.

• Robert S Sansom, Sarah E. Gabbott, Mark A Purnell
• Proceedings. Biological sciences
• 2011

The timing and sequence of events underlying the origin and early evolution of vertebrates remains poorly understood. The palaeontological evidence should shed light on these issues, but difficulties… (More)

Taphonomy and Affinity of an Enigmatic Silurian Vertebrate , Jamoytius Kerwoodi White

• Robert S Sansom, KIM FREEDMAN, Sarah E. Gabbott, Richard J. Aldridge, Mark A Purnell
• 2010

The anatomy and affinities of Jamoytius kerwoodi White have long been controversial, because its complex taphonomy makes unequivocal interpretation impossible with the methodology used in previous… (More)

Mechanism for Burgess Shale-type preservation.

• Robert R. Gaines, Emma U Hammarlund, +5 authors Donald E Canfield
• Proceedings of the National Academy of Sciences…
• 2012

Exceptionally preserved fossil biotas of the Burgess Shale and a handful of other similar Cambrian deposits provide rare but critical insights into the early diversification of animals. The… (More)

Chemical, experimental, and morphological evidence for diagenetically altered melanin in exceptionally preserved fossils.

• Caitlin Colleary, Andrei Dolocan, +13 authors Jakob Vinther
• Proceedings of the National Academy of Sciences…
• 2015

In living organisms, color patterns, behavior, and ecology are closely linked. Thus, detection of fossil pigments may permit inferences about important aspects of ancient animal ecology and… (More)

Decay of velvet worms (Onychophora), and bias in the fossil record of lobopodians

• Duncan J. E. Murdock, Sarah E. Gabbott, Georg Mayer, Mark A Purnell
• BMC Evolutionary Biology
• 2014

Fossil lobopodians, including animals proposed to have close affinity to modern onychophorans, are crucial to understanding the evolution of the panarthropod body plan and the phylum-level… (More)

Non-random decay of chordate characters causes bias in fossil interpretation

• Robert S Sansom, Sarah E. Gabbott, Mark A Purnell
• Nature
• 2010

Exceptional preservation of soft-bodied Cambrian chordates provides our only direct information on the origin of vertebrates. Fossil chordates from this interval offer crucial insights into how the… (More)

The eyes of Tullimonstrum reveal a vertebrate affinity

• Thomas T Clements, Andrei Dolocan, Peter Martin, Mark A Purnell, Jakob Vinther, Sarah E. Gabbott
• Nature
• 2016

Tullimonstrum gregarium is an iconic soft-bodied fossil from the Carboniferous Mazon Creek Lagerstätte (Illinois, USA). Despite a large number of specimens and distinct anatomy, various analyses over… (More)

Morphology of Cambrian lobopodian eyes from the Chengjiang Lagerstätte and their evolutionary significance.

• Xiaoya Ma, Xian-guang Hou, +6 authors Gregory D. Edgecombe
• Arthropod structure & development
• 2012

Visual organs are widely distributed throughout the animal kingdom and exhibit a great diversity of morphologies. Compound eyes consisting of numerous visual units (ommatidia) are the oldest… (More)

Pigmented anatomy in Carboniferous cyclostomes and the evolution of the vertebrate eye

• Sarah E. Gabbott, Philip C J Donoghue, Robert S Sansom, Jakob Vinther, Andrei Dolocan, Mark A Purnell
• Proceedings. Biological sciences
• 2016

The success of vertebrates is linked to the evolution of a camera-style eye and sophisticated visual system. In the absence of useful data from fossils, scenarios for evolutionary assembly of the… (More)

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