Fossils Test Holt 2016 Answer Key Test Key Station #1 1. What is the genus of this specific specimen? Favosites. 2. What Class was this specimen? Anthozoa 3. What period on the geologic timescale did the specimen go extinct? (Middle) Devonian. 4. What mode of preservation did this specimen undergo to become fossilized? Replacement 5. What was the environment of the specimen found in before it became a fossil? Underwater. (tie breaker #1) 6. The walls between Corallites are pierced by pores known as what? Mural pores. Station #2 Insert Orthoceras 1. What is the Genus of the specimen? Orthoceras. 2. What is the Phylum of this Specimen? Mollusca. 3. What is the environment that the specimen lived in? (Be specific) Oceanic 4. When did this species first appear? Ordovician. 5. How did this specimen get food? Filter feeder 6. What is this species closest living relative? Squid, octopus, nautilus or cuttlefish. Station #3 (Insert Trace fossil) 1. Give an example of a trace fossil. A fossil of a footprint, droppings, trail, etc., but not an actual organism. Many answers will be acceptable. 2. What environment might this trace fossil have been found in? Aquatic/underwater. 3. What other organisms can be identified within this trace fossil? Coral.
4. What type of rock was this fossil formed in? Limestone. 5. What is the process called in which water dissolves the original hard parts and replaces them with mineral matter? Replacement. Station #4 (Mosasaurs) 1. Identify the Family of this specimen? Mosasaurs/Mosasauridae 2. What means did the specimen use to get food? Waited and pounced on prey. 3. What is the Class of this specimen? Reptilia 4. When was the first discovery of this specimen? 1764 5. What environment did this specimen live in? Warm shallow leaves 6. What was the time period of this specimen? Cretaceous/Late Cretaceous Station #5 Velociraptor 2. What is the closest living relative to this specimen? Birds 3. Like avian creatures, what had this specimen grown? Feathers 4. Alongside being carnivores, this species was also known for being what? Scavengers 5. What is the order of this specimen? Saurischia 6.Was this a social creature? Yes.
Station #6 (Hexagonaria) 1. Identify the genus of this specimen? Hexagonaria (NOT Hexagonia). 2. What is the phylum of this specimen? Cnidaria. 3. True or False: This specimen is part of the kingdom plantae. If false, what kingdom does it belong to? False, Animalia. 4. During what period did it exist? Devonian. 5. What is this fossil commonly referred to as? Petoskey stone. 6. What state has this specimen as its state fossil? MIchigan.
Station #7
Station #8 1. Out of the three general types of rocks, what is the only one that can have fossils? Sedimentary. 2. Identify rock #1. Shale. 3. Identify rock #2. Coquina. 4. Identify rock #3. Sandstone. 5. Identify rock #4. Limestone. 6. True of False: Rock #4 reacts to acid. True. Station #9 (Tyrannosaurus) Tyrannosaurus 2. Judging by the fossil presented, what type of eater was the specimen? A carnivore 3. In what period did this specimen go extinct in? Cretaceous Period/Late Cretaceous Period 4. What would be the closest living relative to this specimen above? Birds 5. In what hemisphere are fossils of this specific genus commonly found? (Tie breaker question #2) The western Hemisphere 6. What is the order of this specimen? Saurischia Station 10 1. What is the class of this specimen? Reptilia
2. What is the order of this specimen? Pleisosauria 3. When did this species first appear? Jurassic Period 4. What environment was this species most likely in? Aquatic/Oceanic 5. This specimen has been found on which continent(s)? Antarctica NO North America YES Europe YES Asia YES Africa YES Australia YES South America YES 6.True or false? This specimen is among the first reptile fossils ever found? True Station #11 (Phacops Trilobite) Phacops 2. What is the Class of this specimen? Trilobita 3. What is the time period where the most of this Specimen appeared in? Lower Plaeozoic/Paleozoic 4. True or false, Trilobites are vertebrates? False 5. What mode of feeding did the specimen undergo? Filter Feeding 6. What is the shell of a trilobite called? Rostral Plate Station #12 (Smilodon) Smilodon (tie breaker #3)
2. When did this Genus go extinct? Late Holocene 3. This specimen is related to the modern day what? Cats 4. True or false. This animal was a predator. True 5. Were this animal s large canines used for acquiring food? yes. 6. When did this species first appear? Early Pleistocene