Concentration of fossils
The area that goes from point 1 to point 3, is 185 metres (607 ft) in length and width is 5 metres (16 ft) on average, with exposed mudstone. In total there are 925 m2 (9,960 sq ft) of exposed mudstone. Five digs, where they entered a fossil for each 185 m2 (1,990 sq ft), so there should be fossils 50 per hectare, at this location.
In the circle, with the central point the point 3, the diameter is 340 m (1,120 ft), and the area is 90,792 m2 (977,280 sq ft). Dividing this area by 185 m2 (1,990 sq ft), probably have 490 fossils within this circle, which is in the map area. This estimate were considered, only the exposed area, as if in two dimensions, regardless of the depth.
There is a height difference of more than 3 meters between point 1 and point 3. All this indicates that fossils were deposited at this location for a long time, and there may be more fossils below the stream.
Assuming that each meter of depth there are four layers of fossils, means that the estimated number of 490 can be multiplied by four to give the 1960 fossil every meter deep excavated. Thus, it is likely that there are between 500-2000 fossils in this study area. But this number may be higher since there are two other sites nearby and 30 meters above the site. This means that this area can extrapolate in breadth and depth.
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Calvert Cliffs State Park is a public recreation area in Lusby, Calvert County, Maryland, that protects a portion of the cliffs that extend for 24 miles along the eastern flank of the Calvert Peninsula on the west side of Chesapeake Bay from Chesapeake Beach southward to Drum Point. The state park is known for the abundance of mainly Middle Miocene sub-epoch fossils that can be found on the shoreline.
Hyperodapedon is an extinct genus of rhynchosaur reptiles which lived during Late Triassic period. Like other rhynchosaurs, it was an heavily built archosauromorph, distantly related to archosaurs such as crocodilians and dinosaurs. Hyperodapedon in particular was part of the subfamily Hyperodapedontinae, a specialized rhynchosaurian subgroup with broad skulls, beaked snouts, and crushing tooth plates on the roof of the mouth.
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Mesosuchus is an extinct genus of basal Rhynchosaur from early Middle Triassic deposits of Eastern Cape, South Africa. It is known from the holotype SAM 5882, a partial skeleton, and from the paratypes SAM 6046, SAM 6536, SAM 7416 and SAM 7701 from the Aliwal North Euparkeria site. Mesosuchus is quite small, spanning around 30 cm in length. Mesosuchus was discovered and named by David Meredith Seares Watson in 1912.
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Stenaulorhynchus is an extinct genus of hyperodapedontid rhynchosaur known from the Middle Triassic deposits of Tanganyika Territory, Tanzania. It was found in the Lifua Member of the Manda Formation in the Karoo Supergroup. It was named and first described by Sidney Henry Haughton in 1932. The type species is Stenaulorhynchus stockleyi, a beaked herbivore measuring 1–6 meters in length.
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