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View/Edit arkL Database event - FAD Huayangosaurus (stegosaur; China)

NB The age of the event may be set by placement within an interval (pup), placement between 2 events (pub), offset from an event or as a preset.
If data is given for more than one of these the priority is preset over offset over pub over pup.

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The age-window currently being used to search for terms for autocompletion is 118.169 -> 218.169 Ma.event above: FAD Camarasaurus grandis (sauropod), plus Allosaurus (theropod) and Brachiosaurus (sauropod) (USA)
event below: FAD Huayangosaurus (first stegosaur; China)

base event of: Tuojianguian LandVertZ;
top event of: Dashanpuan LandVertZ;

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Event data

term:

Id:2623 sort: 263

Event Type:

Event Display:

TSC Column:

id:288

Taxon:

dataset:

Vert - Fish and Reptile faunachrons (dataset id = 24)

stage:

notes_2004:

notes_2020:

DOTTED at base of Bathonian  ""Most of the Middle Jurassic tetrapod record comprises low diversity assemblages dominated by fragmentary remains of large dinosaurs.... These are isolated records whose correlation to each other and to the marine timescale is problematic.  However, even if two LVFs can be recognized in the European Middle Jurassic record, they will only be of provincial use within Europe. Lucas (1996a = Mus. N. Ariz. Bull.) proposed two LVFs for the Middle Jurassic of China, and these are of value to correlation in eastern Asia only (used here).  The younger Tuojianguian LVF has been assigned a Bathonian-Callovian age based on conchostracans (Chen et al. 1982) and is characterized by ... dinosaurs, most notably the stegosaur Tuojiangosaurus, the theropods Szechuanosaurus and Yangchuanosaurus and the sauropods Omeisaurus and Mamenchisaurus."" (from Lucas, 2009).  Tuojiangosaurus((Greek for ""Tuo river lizard"") was about 6m long and is ""one of the most primitive stegosaurs.  Paleontologists believe stegosaurs--the spiked, plated, elephant-sized herbivorous dinosaurs--originated in Asia, then crossed over to North America during the late Jurassic period"" -- Tuojiangosaurus details and image:  http://dinosaurs.about.com/od/herbivorousdinosaurs/p/tuojiangosaurus.htm  and  https://en.wikipedia.org/wiki/Tuojiangosaurus .

compilation_notes:

refs to add:

linked refs:

Lucas 1996;Lucas 2009a;

Placement by pup

up within interval: id: 17

Placement by pub

	higher event:	id: (Ma)
	lower event:	id: (Ma)

Placement by offset

offset from event: link to event: (id: )

preset_age:

preset_age_notes:

Age

168.169 Δ=-0.00049999999998818

Tracecode:

; Q4 event from base+duration defined interval Equation:

Age 2020

Original age 2020 (where age has been corrected by me)

Missing references:Chen et al. 1982; sorry, these are not in the bibliography yet insert new entry

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Event References

Lucas, S. G. (1996). Dinosaurs: The Textbook. McGraw-Hill. 1-. gs

Lucas, S. G. (2009a). Global Jurassic tetrapod biochronology. Volumina Jurassica. 6: 99-108. gs

Dataset References

Lucas, S. G. (2009a). Global Jurassic tetrapod biochronology. Volumina Jurassica. 6: 99-108. gs

Lucas, S. G. (2010b). The Triassic timescale based on nonmarine tetrapod biostratigraphy and biochronology. In, Lucas, S. G. (ed.) The Triassic Timescale. Geological Society of London, Special Publications . 334: 17-39. gs

Lucas, S. G., Sullivan, R. M. & Spielmann, J. A. (2012a). Cretaceous vertebrate biochronology, North American Western Interior. Journal of Stratigraphy. 36(2): 426-461. gs