Fossils B/C

[boomvroomshroom]

Whoops, sorry. (Oh well too lazy to look them up.)

1. What is the class?
2. About how old is it?
3. What mode of preservation is this?

Image: (Click to Show Hidden Text)

[img]http://www.crystalinks.com/fossilbutterfly.jpg[/img]

[coprolite_dipstick]

Answer (Click to Show Hidden Text)

1. Insecta
2. Devonian
3. Mehhhh.. compression?

[Unome]

Number 3 is probably (Click to Show Hidden Text)

Carbon film/carbonized (so compressed makes sense, I suppose)

[boomvroomshroom]

Meh either or - corprolite_dipstick was first so guess it's your turn!

[varunscs11]

Can we try to post more frequently because Nationals is coming up. Thanks

[UTF-8 U+6211 U+662F]

Random Number Generator is very helpful in choosing questions.

1) Identify all major taxonomic ranks. 2) Fossil Record 3) Where it grows in the wild 4) Mode of Fossilization TIEBREAKER: Only extant species (Click to Show Hidden Text)

[img]http://api.fmanager.net/files/fossils/SP0110_ginkgo_leaf_2.jpg[/img]

[Unome]

Some answers (Click to Show Hidden Text)

1) Phylum Ginkgophyta, Class Ginkgoopsida, Order Ginkgoales, Family Ginkgoaceae (taxonomic naming schemes are helpful)
2) It arose in the Jurassic, and survives as a single species today
3) Grows in the wild in China
4) Um... carbonized film?
Tiebreaker) Ginkgo biloba (I assume you wanted the name)

[UTF-8 U+6211 U+662F]

Some answers (Click to Show Hidden Text)

1) Phylum Ginkgophyta, Class Ginkgoopsida, Order Ginkgoales, Family Ginkgoaceae (taxonomic naming schemes are helpful)
2) It arose in the Jurassic, and survives as a single species today
3) Grows in the wild in China
4) Um... carbonized film?
Tiebreaker) Ginkgo biloba (I assume you wanted the name)

Correct! Your turn.

[Unome]

1) Identify the Class and Subphylum. 2) Explain how it feeds 3) Give the common name of the Class Asteroidea 4) Explain its anatomy relative to Asteroidea and Echinodermata in general (Click to Show Hidden Text)

[attachment=0]Untitled 1.png[/attachment]

[UTF-8 U+6211 U+662F]

1) Identify the Class and Subphylum. 2) Explain how it feeds 3) Give the common name of the Class Asteroidea 4) Explain its anatomy relative to Asteroidea and Echinodermata in general (Click to Show Hidden Text)

[picture removed]

ANS (Click to Show Hidden Text)

1) Crinoidea, Crinozoa?
2) Filter feeder, feeds using its cilia
3) Starfish
4) They are composed of stems, crowns, and roots? They show pentaradial symmetry like all echinoderms.